Dissertations / Theses on the topic 'Manure management systems'
To see the other types of publications on this topic, follow the link: Manure management systems.
Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles
Consult the top 41 dissertations / theses for your research on the topic 'Manure management systems.'
Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.
You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.
Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.
1
Kern, James D. "Water Quality Impacts of Cover Crop/Manure Management Systems." Diss., Virginia Tech, 1997. http://hdl.handle.net/10919/40385.
Full textAbstract:
Crop production, soil system, water quality, and economic impacts of four corn silage production systems were compared through a field study including 16 plots (4 replications of each treatment). Systems included a rye cover crop and application of liquid dairy manure in the spring and fall.
The four management systems were: 1) traditional, 2) double-crop, 3) roll-down, and 4) undercut. In the fourth system, manure was applied below the soil surface during the undercutting process. In all other systems, manure was surface-applied. In the third system, the rye crop was flattened with a heavy roller after manure application.
Simulated rainfall was applied within 48 h of manure application. Measured constituent concentrations in runoff were compared with water quality criteria. Costs and returns of all systems were compared. The undercut system reduced loadings of all nutrients, but increased total suspended solids (TSS) concentration as compared with all other systems. The mean volume of runoff from the undercut system was less than half that from any other system, which influenced all constituent loadings. Mean TSS concentration in runoff from the undercut system was over three times the mean of any other system. The roll-down system had no significant effect on water quality as compared to the traditional system. The undercut system was reasonably effective in keeping phosphate phosphorus levels below the criterion set for bathing water. None of the systems generally exceeded nitrate nitrogen concentration criteria.
However, total phosphorus, orthophosphate, fecal coliform and e. coli criteria for drinking, bathing, shellfish harvest, and aesthetics were regularly exceeded by all of the systems. There were no differences among the treatments in effects on bacterial concentrations. The double-crop system produced significantly higher net returns than all other systems only if the value of the rye crop was $92.31/Mg or more. There were no significant differences in net returns of the traditional, roll-down, or undercut systems.Ph. D.
2
Svinurai, Walter. "Manure production and nutrient management in pasture-based dairy production systems." Thesis, University of Fort Hare, 2010. http://hdl.handle.net/10353/475.
Full textAbstract:
Manure production and nutrient management in pasture-based dairy production systems by Walter Svinurai The effect of dietary treatments on nutrient excretion was determined and an attempt to improving the retention of excreted nitrogen in stored manure using Aloe ferox leaf gel (AFLG) and pine bark was conducted at a pasture-based dairy farm. The animal mass-balance method was used to determine nutrient excretion by cows fed on three dietary treatments, Lolium perrene-based treatment (LP), Lolium multiforium-based treatment (LM) and Lolium perenne- Trifolium repens -based treatment (LTF). In separate experiments, slurry from dairy cows fed LM was amended with AFLG and pine bark at concentrations of 25, 50, 75 and 100 g/l and stored under anaerobic conditions for 16 days. The highest and lowest excretions of N, P and K were observed in LM and LP treatments, respectively. Increasing dietary N improved K and N retention in milk and, consequently increased milk urea nitrogen (MUN) and N excretion (P < 0.05). The concentrations of AFLG affected N and P retention in manure (P < 0.05). The highest retention in total Kjeldahl nitrogen (TKN) of the initial was 42% AFLG at 25g/l inclusion rate. Ammonium nitrogen (AMN) concentration increased significantly due to the interactive effect of AFLG inclusion rate and time. Pine bark powder significantly improved N and P retention in manure at all concentrations. The retention in TKN was higher (P < 0.05) at 25g/l pine bark powder than other concentrations. The interaction effect of inclusion rate and time increased iii AMN (P < 0.05). Dietary treatments significantly affected nutrient excretion, and AFLG and pine bark considerably improved N retention in stored slurry. Findings from the filed trial suggest the need for more attention on managing dietary nutrients in the post-rainy and cool-dry season when growth of pasture influenced choice of dietary treatments that led to high nutrient excretion. Field simulation of the additives to determine their efficacy and environmental hazards was recommended.
3
Ryding, Caroline. "Assessment of nutrient emission factors for different manure and digestate management systems." Thesis, Linköpings universitet, Biologi, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-149595.
Full textAbstract:
An efficient management of organic fertilizers (here animal manure and digestate) is of large concern in today´s agriculture. When evaluating the efficiency of alternative management systems, differences in nutrient losses (emissions) must be taken into consideration. Those can be rather specific for e.g. a geographical region and agricultural system. This literature study aimed at identifying emission factors and uncertainty ranges, that are relevant to use in comparative system studies of different organic fertilizer management systems in South Swedish climate. Emissions from manure and digestate storage, application and field losses were considered. For carbon, the sequestration of organic carbon in the soil was considered instead of the carbon dioxide emissions from manure/digestate decomposition in soils. The values were very variable, and the median value was used as the selected emission factor. From storage of liquid cow manure, the ammonia emission for storage with cover was 3 % of the ammonium content, and 10 % without cover. It was about the same for both liquid pig manure (8 %) and solid cattle manure (10 %). The methane emissions during storage were 10 % of the maximum methane potential. Ammonia emissions during application ranged from 10-20 % of ammonium-nitrogen. Two studies of manure carbon sequestration were found that was applicable for the Swedish climate. They indicated that about 8-11 % of the carbon applied as solid manure was sequestered, compared to about 4 % for liquid manure.
4
Delve, Robert James. "Implications of livestock feeding management for soil fertility in smallholder mixed farming systems." Thesis, Imperial College London, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.312167.
Full text
5
Nennich, Tamilee Dawn. "Characterization of manure excretion and environmental impacts of nutrient management in dairy production systems." Online access for everyone, 2004. http://www.dissertations.wsu.edu/Dissertations/Fall2004/T%5FNennich%5F112204.pdf.
Full text
6
Izard, Erica Jean. "Seeking sustainability for organic cropping systems in the Northern Great Plains: legume green manure management strategies." Thesis, Montana State University, 2007. http://etd.lib.montana.edu/etd/2007/izard/IzardE0807.pdf.
Full text
7
O'Brien, Brendan J. "Physicochemical Properties of Residuals from Anaerobic Digestion of Dairy Manure and Food Waste: Nutrient Cycling Implications and Opportunities for Edible Mushroom Cultivation." ScholarWorks @ UVM, 2019. https://scholarworks.uvm.edu/graddis/1015.
Full textAbstract:
Organics recycling is increasing in New England as multiple states have enacted laws to divert organic materials, including food scraps and food processing residuals, away from landfills. Anaerobic digesters on dairy farms represent an attractive approach to food waste recycling because existing infrastructure is in place and co-digestion of dairy manure with food waste can increase renewable biogas production. In addition, anaerobic digestion results in effluents that can be separated into solid and liquid residual materials, or 'digestates'. Screw-press separated solids consist of lignocellulosic biomass resistant to microbial degradation during anaerobic digestion. These separated solids are typically recycled on farms as animal bedding before returning to the digester, whereas remaining liquid digestates are typically spread as fertilizer for nearby feed crops or pasture fields. Within this model, anaerobic digestion is not a nutrient management solution and repeated land application of digestate nutrients can create eutrophication risk over time. Alternative models are needed where digestate materials are converted into valuable products to be sold off-farm, enabling the removal of nutrients to help meet nutrient management goals. In this thesis, I address two research questions related to the pursuit of such alternative models. First, how do physicochemical characteristics of digestate materials vary across full-scale systems in the region, including systems with and without food waste as a substantial proportion of feedstock, and how do these variations affect the potential for conversion of digestates into valuable products (e.g., soil amendments)? Second, can separated digestate solids be used for commercial cultivation of gourmet oyster mushrooms (Pleurotus ostreatus) to produce food for human consumption, providing synchronous nutrient recovery and food production? Results from my first research chapter indicate that increasing food waste inputs (and thus diversification of feedstock recipes) will likely increase the variability of some solid and liquid digestate characteristics and can result in greater contamination with synthetic particles, with implications for nutrient recovery efforts and associated products. My second research chapter shows that screw-press separated digestate solids can offset non-local substrate ingredients to a degree while achieving oyster mushroom yields comparable to commercial recipes. Furthermore, this strategy could divert nutrients away from land adjacent to digesters and directly into safe, nutritious, protein-rich food for humans, while also producing a useful spent mushroom substrate product.
8
Basnet, Badri Bahadur. "Geographic Information System based manure application planning." University of Southern Queensland, Faculty of Engineering and Surveying, 2002. http://eprints.usq.edu.au/archive/00001410/.
Full textAbstract:
[Abstract]: The disposal of animal waste has become a problem in many parts of the world due to the rapid growth in the number and the size of intensive animal industries. Safe waste disposal sites are rarely available and the relocation and/or treatment of animal waste is seldom economically viable. The reuse of animal waste for energy recovery and re-feeding is also not popular. Animal waste is a valuable source of plant nutrients and a very good soil conditioner, and has been commonly applied as fertiliser to agricultural fields. However, due to the increasing oversupply of animal waste in recent years, it has often been applied in excess to the agricultural fields. Excessive application of animal waste, without due consideration of its implications, is a serious concern. The run-off and leaching losses of nutrients from the fields fertilised with animal waste have contributed significantly to the eutrophication and toxic blue-green algae blooms in surface water systems and nitrification of ground water systems. It has also led to nutrient imbalances in the soils and odour pollution to the surrounding communities. The animal waste, which is a valuable source of plant nutrients, has thus become both an economic and environmental burden, and there is a need to develop a strategy for its sensible use as a fertiliser in agricultural fields. Sensible use of animal waste involves the consideration of all the agricultural, environmental, social, and economical limitations. A rational method of achieving this is to restrict the use of animal waste to sites suitable for such uses, identify areas where it can be relocated and applied economically, limit the application rates to a safe level, and observe appropriate manure management practices. This study addressed each of these components by developing a comprehensive manure application plan (MAP) for the site-specific use of animal waste as fertiliser in agricultural fields. Various geographic information systems (GIS) based techniques, including a weighted linear combination model and map algebra based cartographic modelling, were employed to achieve the goal. The appropriateness of the existing techniques and procedures were evaluated and modified to meet the current input requirements. New methods of analysis were devised as necessary. The Westbrook sub-catchment of the Condamine River catchment in south-east Queensland was selected as the study area. The sub-catchment covers 24,903 hectares and contains 39 intensive animal industries. The catchment is also a part of the Murray-Darling Basin, which has been suffering from toxic blue green algae blooms recurrently since 1991. This study identified that only about one-fifth of the sub-catchment area is suitable for animal waste application. Depending on the method of site suitability analysis and the number of input factors used the suitable area ranged between 16 and 22 percent. This comparatively small area is mainly due to the presence of a large proportion of non-agricultural areas in the sub-catchment. The suitable areas were also found to have various degrees of suitability for waste application. However, the degree of site suitability was affected by the number of input factors used in the analysis, the weighting of the factors, and the method of factor attribute standardisation. Conventional methods of weighting input factors were found to be cumbersome and not particularly suitable. Hence, this study developed a new ‘objective oriented comparison’ method of factor weighting. Standardisation of input factors using a continuous, rather than discrete, classification (ie fuzzy set) method was found to be more consistent in degree of suitability determination. The discrete classification of factor attributes into classes of different numbers and sizes, and the weighting of classes to a sum of one, were identified as a limitation in using this standardisation method. A new ‘weight adjustment’ method was devised and demonstrated to reduce factor-weighting biases. The suitable sites, degree of site suitability, and other relevant spatial and non-spatial information were processed within a GIS framework to develop a comprehensive manure application plan. The inherently high presence of available phosphorus in the soils of the study area was recognised and the P2O5 content in the manure was used as the basis for determining manure application rates. A complimentary nitrogen supply map was also generated. Manure management practices applicable to the areas with a lower degree of suitability were also suggested.
9
Boadi, Richard S. "Integrated asset management framework: using risk-based decision-support systems to manage ancillary highway assets." Diss., Georgia Institute of Technology, 2015. http://hdl.handle.net/1853/53562.
Full textAbstract:
Risk assessment is an essential part of an effective transportation asset management program. The 2012 surface transportation bill, Moving Ahead for Progress in the 21st Century, requires state departments of transportation (DOTs) to establish risk- and performance-based asset management programs for the National Highway System. While the bill’s provisions include requirements only for pavement and bridge assets, they also recommend that DOTs consider other ancillary highway assets such as culverts and earth retaining structures, and hazards such as rockfalls and landslides. This research introduces an integrated risk framework with supporting algorithms to provide for the integration of ancillary assets and hazards into existing transportation asset management systems, and facilitate budget planning and resource allocation. The framework, Highway Assets Risk Management Decision-Support System (HARM-DSS), adopts a system-of systems perspective in defining and evaluating performance, and analyzing and addressing risk. The algorithms are developed using multi-criteria decision analysis (MCDA) and risk analysis methods; value functions are applied to scale performance attributes, and additive weighting to integrate multiple risk criteria. The methodology is applied at the corridor-level to analyze three different case studies using data with notable variability from New York, Minnesota and Oregon. The cases demonstrate the process for developing descriptive and visual information on multi-asset/hazard corridors, with sparse to medium data, in order to identify corridors that are vulnerable to failure, as well as exhibit high risk of failure within a transportation network. The results demonstrate that HARM-DSS can be applied across competing corridors or alternatives to produce descriptive and intuitive results that decision makers can use in budget planning and resource allocation. This research extends the risk-based thinking on transportation asset management, by moving it from a silo-ed to an integrated analytical platform that considers multiple non-homogenous assets and hazards simultaneously. It identifies data deficiencies and offers recommendations on the requisite data collection on asset inventory and condition to improve objectivity in the analytical process and confidence in the analysis results. In addition, it offers recommendations on the appropriate use of expert knowledge in supplementing existing data deficiencies in the interim. This work is potentially useful to decision makers involved in distributing resources to preserve the reliability and resiliency of transportation systems, as well as meet the existing performance- and risk-based Federal mandates for transportation asset management.
10
Dewey, Patricia Marie. "Training arts administrators to manage systemic change." The Ohio State University, 2004. http://rave.ohiolink.edu/etdc/view?acc_num=osu1085002604.
Full text
11
Schweizer, Daniel. "Methodology to manage process technology innovation." Thesis, Massachusetts Institute of Technology, 2010. http://hdl.handle.net/1721.1/59170.
Full textAbstract:
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division; in conjunction with the Leaders for Global Operations Program at MIT, 2010.Cataloged from PDF version of thesis.
Includes bibliographical references (p. 64-65).
The research conducted for this thesis was performed at "Company X", a U.S.-based engineered goods manufacturer. This project focused on the company's Advanced Manufacturing group and its process technology development methodology. The newly founded Advanced Manufacturing group started multiple innovation projects, but did not successfully implement any of them so far. Lack of organizational integration, an overall R&D strategy, as well as a defined innovation methodology negatively affected the difficult situation of that small group of engineers. This project seeks to compare the innovation methodology and process technology development of Advanced Manufacturing with best practices from similar industries as well as literature. An analysis of how to choose the right R&D projects, as well as how to execute these projects, demonstrates the differences between Company X and other organizations that are considered innovative. Case studies of a specific R&D project, in addition to an interdisciplinary workgroup of Advanced Manufacturing, highlight the positive and negative characteristics of the current innovation process. The results of this analysis provide Company X with additional insights how to use the existing innovation resources more successfully. Recommendations provided in this thesis can be used by Company X to support future technology development projects but also to help the newly founded task force that started to develop a company-wide innovation strategy (process and product innovation). Keywords: Product Development, Process Development, Advanced Manufacturing, Innovation.
by Daniel Schweizer.
S.M.
M.B.A.
12
Phumchusri, Naragain. "Innovative policies to manage demand in service systems with limited capacity." Diss., Georgia Institute of Technology, 2010. http://hdl.handle.net/1853/42866.
Full textAbstract:
This dissertation presents innovative demand management techniques for service systems with limited resources. The first study analyzes demand management policies of animal shelters with limited Kennel space as a set of interacting stochastic queueing systems. In practice, there are two main policies being used, which we call "Kill" and "No-Kill" policies. In a "Kill" system, animals may be euthanized if a shelter is full. Many shelters have moved to a "No-Kill" policy, where they avoid killing for space and adopt other approaches to reduce supply and demand mismatch. Our goal is to provide insights on how No-Kill policies, such as coordination, adoption and neutering campaigns, help reduce the animals' killing rate so that the shelter management can choose the way to effectively solve their problems. In the second part, we consider a topic of demand management for the Sports and Entertainment (S&E) industry, called "Scaling the house", i.e., how to divide seats into zones for different prices to maximize revenue across the venue. From the data obtained from several performance venues in the U.S., we find ticket demand is impacted by locations of seats as well as by price. We characterize closed-form solutions for the optimal two-dimensional zoning decision (with row and column cuts) and the one-dimensional decision (with row cuts), and explore when each model should be applied. The third study considers pricing as a tool to manage demand for the S&E tickets. We develop dynamic pricing with demand learning models where demand is also affected by time left until the show dates. Since the show's popularity is usually uncertain to the seller, we propose a method to learn the overall popularity via Bayesian updates. We perform computational experiments to understand properties of the model solutions and identify when demand learning is most beneficial.
13
Ginige, Jeewani A. "Change impact analysis to manage process evolution in web workflows." View thesis, 2008. http://handle.uws.edu.au:8081/1959.7/32727.
Full textAbstract:
Thesis (Ph.D.)--University of Western Sydney, 2008.A thesis submitted to the University of Western Sydney, College of Health and Science, School of Computing and Mathematics in fulfilment of the requirements for the degree of Doctor of Philosophy. Includes bibliographical references.
14
Kroll, Tobias [Verfasser], and Stefan [Akademischer Betreuer] Stieglitz. "Towards a Soft Paternalism to Manage Information Systems in Organisations / Tobias Kroll ; Betreuer: Stefan Stieglitz." Duisburg, 2020. http://d-nb.info/121682715X/34.
Full text
15
Bytschkow, Denis [Verfasser], Manfred [Akademischer Betreuer] Broy, Manfred [Gutachter] Broy, and Thomas [Gutachter] Hamacher. "A generic hierarchic architecture for the coordination of energy management systems. / Denis Bytschkow ; Gutachter: Manfred Broy, Thomas Hamacher ; Betreuer: Manfred Broy." München : Universitätsbibliothek der TU München, 2020. http://d-nb.info/1223093182/34.
Full text
16
Moccio, Craig Angelo. "Using Datum Flow Chain and Design Structure Matrix to manage team structure and integration." Thesis, Massachusetts Institute of Technology, 2002. http://hdl.handle.net/1721.1/91762.
Full text
17
Sackey, Frankie Nii A. "Strategies to Manage Cloud Computing Operational Costs." ScholarWorks, 2018. https://scholarworks.waldenu.edu/dissertations/6106.
Full textAbstract:
Information technology (IT) managers worldwide have adopted cloud computing because of its potential to improve reliability, scalability, security, business agility, and cost savings; however, the rapid adoption of cloud computing has created challenges for IT managers, who have reported an estimated 30% wastage of cloud resources. The purpose of this single case study was to explore successful strategies and processes for managing infrastructure operations costs in cloud computing. The sociotechnical systems (STS) approach was the conceptual framework for the study. Semistructured interviews were conducted with 6 IT managers directly involved in cloud cost management. The data were analyzed using a qualitative data-analysis software to identify initial categories and emerging themes, which were refined in alignment with the STS framework. The key themes from the analysis indicated that successful cloud cost management began with assessing the current environment and architecting applications and systems to fit cloud services, using tools for monitoring and reporting, and actively managing costs in alignment with medium- and long-term goals. Findings also indicated that social considerations such as fostering collaboration among all stakeholders, employee training, and skills development were critical for success. The implications for positive social change that derive from effectively managing operational costs include improved financial posture, job stability, and environmental sustainability.
18
Backhaus, Nils [Verfasser], Manfred [Akademischer Betreuer] Thüring, Manfred [Gutachter] Thüring, and Josef [Gutachter] Krems. "Nutzervertrauen und –erleben im Kontext technischer Systeme : empirische Untersuchungen am Beispiel von Webseiten und Cloudspeicherdiensten / Nils Backhaus ; Gutachter: Manfred Thüring, Josef Krems ; Betreuer: Manfred Thüring." Berlin : Technische Universität Berlin, 2017. http://d-nb.info/1156183804/34.
Full text
19
Hsieh, Min Fang M. B. A. Massachusetts Institute of Technology. "Applying a MEIO approach to manage Intel's VMI Hub Supply." Thesis, Massachusetts Institute of Technology, 2011. http://hdl.handle.net/1721.1/66075.
Full textAbstract:
Thesis (M.B.A.)--Massachusetts Institute of Technology, Sloan School of Management; and, (S.M.)--Massachusetts Institute of Technology, Engineering Systems Division; in conjunction with the Leaders for Global Operations Program at MIT, 2011.Cataloged from PDF version of thesis. Page 100 blank.
Includes bibliographical references (p. 98-99).
To improve customer service levels, Intel implemented Vendor Managed Inventory (VMI) hub process for its Central Processing Unit (CPU) Finished Good (FG) inventory, which allows Intel's customers to pull inventory directly from the hubs. However, this process change resulted in increased inventory in Intel's overall supply chain and thus increased inventory costs. This work investigates reducing inventory cost by applying a Multi Echelon Inventory Optimization (MEIO) approach to manage Intel's VMI Hub Supply Chain. The goal is to evaluate the hypothesis that an MEIO approach for inventory management and replenishment will result in a more efficient use of FG inventory. To assess the hypothesis, we developed a three-step modeling framework. In each step, we conducted several experiments, applying the MEIO model approach, to determine the optimal CPU FG inventory stocking levels needed to meet customer service level goals for different products and locations. The study was concluded with quantitative and qualitative business impact of implementing an MEIO approach for Intel CPU FG Supply Chain. The MEIO modeling result shows significant inventory reduction opportunities and were presented to the Senior Management team of Intel Supply Chain.
by Min Fang Hsieh.
S.M.
M.B.A.
20
West, Mario. "Strategies to Manage Enterprise Information Technology Projects." ScholarWorks, 2017. https://scholarworks.waldenu.edu/dissertations/4578.
Full textAbstract:
Since 2005, most midsize company information technology (IT) projects had a 62.4% failure rate because of wrong project team communication skills or cost overruns. IT leaders expect negative IT project outcomes will cost over $2 billion by 2020. Using the actor-network theory, the purpose of this single case study was to explore strategies used by IT leaders from a midsize IT company in Washington, D.C. to plan and execute projects under budget and on time. Using purposeful sampling, 5 IT leaders were selected for this study because of their experience in implementing successful strategies for projects. Data were collected using face-to-face semistructured interviews, company documentation, and internal organizational risk reports. Yin's 5-step process was used for data analysis to compile, disassemble, reassemble, interpret, and conclude the data. The interpretation of data, subjected to methodological triangulation and member checking to strengthen the dependability and credibility of the findings, yielded 3 themes of IT leader communication skills: IT leader strategy, IT leader knowledge, and implementation of cost savings. The findings indicated that IT leaders serve as the key actors in the IT project network, and leader communication skills are essential for implementing strategies for IT project completion and cost savings. With this knowledge, IT leaders can implement strategies to plan and execute projects under budget and on time. The implications for a positive social change includes the potential for IT leaders to reduce project production waste and contribute to economic expansion.
21
Gustafson, David J. "Utilizing an energy management system with distributed resources to manage critical loads and reduce energy costs." Thesis, Monterey, California: Naval Postgraduate School, 2014. http://hdl.handle.net/10945/43921.
Full textAbstract:
Approved for public release; distribution is unlimitedEnergy security is critical to the DOD and can be achieved using different methods, but for DOD installations cost effectiveness must be taken into consideration when evaluating energy security goals. Energy Storage Systems (ESSs) have a wide range of associated technologies as well as large differences in cost and capabilities. This study examines the cost effectiveness of utilizing an ESS to perform peak shaving with an Energy Management System (EMS). An EMS used with an ESS can perform several functions that can be beneficial to the grid. These functions include peak shaving, conducting power factor correction, matching critical load to most efficient distributed resource, and islanding a system during commercial grid disruption. While utilizing an ESS within a microgrid allows several benefits, to include peak shaving, the ability to utilize photovoltaic arrays during islanding, and power factor correction, the implementation of the ESS by itself is likely to prove cost prohibitive. The DOD requires energy projects to have net savings over the life cycle of the project and in areas without high differential between peak power and off-peak power, this goal will be difficult to achieve.
22
Fischler, Martin. "Legume green manures in the management of maize-bean cropping systems in eastern Africa with special reference to crotalaria (C. ochroleuca G. Don.) /." Zürich, 1997. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=12099.
Full text
23
Yadekar, Yaser. "A framework to manage uncertainties in cloud manufacturing environment." Thesis, Cranfield University, 2016. http://dspace.lib.cranfield.ac.uk/handle/1826/11776.
Full textAbstract:
This research project aims to develop a framework to manage uncertainty in cloud manufacturing for small and medium enterprises (SMEs). The framework includes a cloud manufacturing taxonomy; guidance to deal with uncertainty in cloud manufacturing, by providing a process to identify uncertainties; a detailed step-by-step approach to managing the uncertainties; a list of uncertainties; and response strategies to security and privacy uncertainties in cloud manufacturing. Additionally, an online assessment tool has been developed to implement the uncertainty management framework into a real life context. To fulfil the aim and objectives of the research, a comprehensive literature review was performed in order to understand the research aspects. Next, an uncertainty management technique was applied to identify, assess, and control uncertainties in cloud manufacturing. Two well-known approaches were used in the evaluation of the uncertainties in this research: Simple Multi-Attribute Rating Technique (SMART) to prioritise uncertainties; and a fuzzy rule-based system to quantify security and privacy uncertainties. Finally, the framework was embedded into an online assessment tool and validated through expert opinion and case studies. Results from this research are useful for both academia and industry in understanding aspects of cloud manufacturing. The main contribution is a framework that offers new insights for decisions makers on how to deal with uncertainty at adoption and implementation stages of cloud manufacturing. The research also introduced a novel cloud manufacturing taxonomy, a list of uncertainty factors, an assessment process to prioritise uncertainties and quantify security and privacy related uncertainties, and a knowledge base for providing recommendations and solutions.
24
Conte, Simone Ivan. "The Sea of Stuff : a model to manage shared mutable data in a distributed environment." Thesis, University of St Andrews, 2019. http://hdl.handle.net/10023/16827.
Full textAbstract:
Managing data is one of the main challenges in distributed systems and computer science in general. Data is created, shared, and managed across heterogeneous distributed systems of users, services, applications, and devices without a clear and comprehensive data model. This technological fragmentation and lack of a common data model result in a poor understanding of what data is, how it evolves over time, how it should be managed in a distributed system, and how it should be protected and shared. From a user perspective, for example, backing up data over multiple devices is a hard and error-prone process, or synchronising data with a cloud storage service can result in conflicts and unpredictable behaviours. This thesis identifies three challenges in data management: (1) how to extend the current data abstractions so that content, for example, is accessible irrespective of its location, versionable, and easy to distribute; (2) how to enable transparent data storage relative to locations, users, applications, and services; and (3) how to allow data owners to protect data against malicious users and automatically control content over a distributed system. These challenges are studied in detail in relation to the current state of the art and addressed throughout the rest of the thesis. The artefact of this work is the Sea of Stuff (SOS), a generic data model of immutable self-describing location-independent entities that allow the construction of a distributed system where data is accessible and organised irrespective of its location, easy to protect, and can be automatically managed according to a set of user-defined rules. The evaluation of this thesis demonstrates the viability of the SOS model for managing data in a distributed system and using user-defined rules to automatically manage data across multiple nodes.
25
Turyahabwe, Nelson. "Local capacity to manage forestry resources under a decentralised system of governance : the case of Uganda." Thesis, Stellenbosch: University of Stellenbosch, 2006. http://hdl.handle.net/10019.1/1321.
Full textAbstract:
Thesis (PhD (Forest and Wood Science))--University of Stellenbosch, 2006.This study aims at examining technical and institutional capacity in local organisations to manage decentralised forest resources in Uganda. Specifically the study assessed the roles, responsibilities, powers and legal instruments, incentives, facilities and human and fiscal resources of local organisations to undertake decentralised forest governance. Semistructured and key informant interviews were conducted in local organisations and legal and policy documents reviewed to ascertain strategies for implementing decentralised forestry. An inventory of selected forests was conducted to assess effect of decentralisation policy on the condition of forests in Uganda. Chi-square tests were used to show the factors that motivate local organisations to participate in decentralised forest governance. Tree species diversity and richness, density, diameter at breast height and basal area and sings of human disturbance were used to compare the condition of forests under local government and those under private and central government ownership. Similarity between the forests was assessed using a Two Way INdicator SPecies Analysis, while the differences in the composition and structural characteristics of trees among forest ownership categories were compared by oneway analysis of variance. Multiple regression analysis was used to show the influence of household pressure, forest size, the distance of the forest from roads and forest administrative office, and the market demand of the forest produce on the capacity of forest agencies to regulate timber harvesting. The findings reveals that local organisations supported devolved forest management functions such as forest monitoring, tree planting, environmental education, networking, collaborative and integrated planning, resource mobilisation and formulation of byelaws. The role of forestry in the livelihoods of the people, the desire to control forest degradation and access to forest revenue, donor and central government fiscal support were the most important incentives in decentralised forest management. However, limited capacity in terms of qualified staff, funds, facilities and equipment and inadequate decision-making powers over fiscal resources from forestry, inequitable distribution of forest revenue and unclear forest and tree tenure hindered decentralised forest management. The diversity and richness indices, density, diameter at breast height and basal area of trees were significantly higher in central forest reserves, intermediate in private and lower in local forest reserves. The frequency of human disturbances was significantly higher in local forest reserves than in private and central forest reserves. The variation in composition and structure of the local forest reserves is partly attributed to human disturbances. The capacity of the forest agencies to regulate forest resources use in the Mpigi forests was significantly affected by the size of forest, and its location in relation to the well-maintained roads, forest administrative office and the number of households in close proximity and the market demand of the forest produce. Large forests in close proximity to densely populated areas and far a way from roads and the forest administrative office were more affected by timber harvesting. The results demonstrated that local governments are not yet efficient in monitoring and regulating forest use and maintaining the condition of forests in Uganda. Local organisations need to play an increased role in the implementation of the Forest Policy, the National Forestry and Tree Planting and the Local Government Acts for successful decentralisation of forest management and to recruit more technical staff, strengthen internal sources of revenue and develop integrated forestry work plans. There is also a need for the central government to integrate and co-ordinate local and central interests, and facilitate a working relationship with local governments, civil society and the private sector involved in forestry. Forest owners and managers in the Mpigi forests and Ugandaâ s tropical forests in general need to manage human impacts so as to balance utilisation and conservation forest resources. There is need for longterm studies to fully understand the real significance of ownership on the composition and structure of the Mpigi forests and forests in other districts of Uganda.
26
Beese, Elizabeth Brott. "A vision of the curriculum as student self-creation: A philosophy and a system to manage, record, and guide the process." The Ohio State University, 2012. http://rave.ohiolink.edu/etdc/view?acc_num=osu1345336992.
Full text
27
Feely, Alan John. "The impact of the language barrier on the management of multinational companies: a case study and survey, based exploration of the impact of the language barrier on the strategies, policies and systems by which multinational companies manage their subsidaries." Thesis, Aston University, 2004. http://publications.aston.ac.uk/10777/.
Full textAbstract:
The thesis begins with a conceptual model of the way that language diversity affects the strategies, organisation and subsidiary control policies of multinational companies. The model is based solely on the researcher's personal experience of working in a variety of international management roles, but in Chapter 2 a wide-ranging review of related academic literature finds evidence to support the key ideas. The model is developed as a series of propositions which are tested in a comparative case study, refined and then re-tested in a global survey of multinational subsidiaries. The principal findings of the empirical phases of the thesis endorse the main tenets of the model: (i) That language difference between parent and subsidiary will impair communication, create mistrust and impede relationship development; (ii) That subsequently the feelings of uncertainty, suspicion and mistrust will influence the decisions taken by the parent company; (iii) They will have heightened sensitivity to language issues and will implement policies to manage language differences; (iv) They will adopt low-risk strategies in host countries where they are concerned about language difference; (v) They will use organisational and manpower strategies to minimise the consequences and risks of the communications problems with the subsidiary; (vi) As a consequence the level of integration and knowledge flow between parent and subsidiary will be curtailed; (vii) They will adopt styles of control that depend least on their ability to communicate with their subsidiary. Although there is adequate support for all of the above conclusions, on some key points the evidence of the Case Studies and Survey is contradictory. The thesis, therefore, closes with an agenda for further research that would address these inconsistencies.
28
Steed, John Arthur. "Methane emissions from typical manure management systems." Thesis, 1993. http://hdl.handle.net/1957/36620.
Full textAbstract:
Methane is the most abundant organic chemical in the
earth's atmosphere. Its abundance in the atmosphere is
increasing with time and has reached levels not seen in recent
geological history. The methane is produced both naturally, and
anthropogenically. One of the sources of anthropogenic methane
is manure from domesticated animals. Casada and Safley (1990)
estimated the amount of methane generated from this source.
This was done by estimating the Methane Conversion Factor
(MCF) typically achieved by various waste management systems.
This study was done to evaluate those estimates of the MCF. The
MCF's for the most dominant of disposal methods,
rangeland/pasture disposal, were much lower than the earlier
estimates. Other waste management systems, such as solid
storage and liquid slurry storage had much higher MCF's, at 20°
and 30° C. However, these waste management methods are more
prevalent in parts of the world where the average annual
temperature is closer to 10° C. At that temperature, the MCF is
negligible in all waste management systems. This study showed
that the previously reported estimates of MCF for some waste
management systems were higher than what was actually the
case. Consequently earlier estimates of the amount of methane
generated from manures were higher than what this study found.Graduation date: 1994
29
Wood, Jeffrey. "Mitigating Gas Emissions from Liquid Manure Storage Systems: Management Practices, Measurements and Modeling." Thesis, 2013. http://hdl.handle.net/10214/6575.
Full textAbstract:
Livestock agriculture is a source of methane (CH4), nitrous oxide (N2O) and ammonia (NH3) emissions. A comprehensive approach aimed at mitigating these emissions is needed to reduce the environmental footprint of agriculture. This thesis examined three aspects of a comprehensive mitigation strategy which included: evaluating a management consideration, improving flux measurement techniques, and modeling emissions. The relationships between total solids (TS), gas emissions and surface crust dynamics were assessed. Diurnal and long–term CH4 and N2O flux variations were examined in the context of improving discrete sampling protocols. Finally, a mechanistic model that predicts CH4 emissions from manure slurries was evaluated.
Over long–term storage, the crusts were not effective in mitigating total gas emissions because the slurries remained open to the atmosphere for a significant portion of the time. Total CH4 and NH3 emissions were related linearly to TS, while N2O exhibited a sigmoid response. The linear response to TS observed for CH4 and NH3 occurred despite varying crust conditions suggesting that the availability of substrates in slurries is the more important regulator of emissions over long–term storage.
Diurnal CH4 and N2O flux variations were linked with the diurnal surface temperature (T0) cycle, with the strength of the relationship depending on surface crust conditions. An assessment of discrete sampling protocols revealed that sampling intervals should be ≤7 d. In terms of the timing, it is best to sample these gases when the T0 is closest to the daily mean, which would typically be before 0900 h or after 1700 h.
A mechanistic model of CH4 emissions from slurries was evaluated. The model was most accurate during the first 47 d of storage, after which the accuracy decreased. However, total emissions estimated over 145 d were within –21.1 to 6.0% of measured emissions for slurries with TS 3.2%, 5.8% and 8.2%. Emissions were also modeled using the USEPA inventory method. There was relatively good agreement between the USEPA and mechanistic models, with relative percent differences ranging from 19.9 to 37.3%, which is encouraging from the standpoint of advancing greenhouse gas inventory methods.Ontario Graduate Scholarship
30
Jacobsen, Kurt William. "A decision support system for manure management planning." 1991. http://catalog.hathitrust.org/api/volumes/oclc/24583609.html.
Full textAbstract:
Thesis (M.S.)--University of Wisconsin--Madison, 1991.Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 84-87).
31
Ostermann, Tanis. "Using ISO 14001 environmental management systems to manage for sustainability." 2012. http://hdl.handle.net/1993/8887.
Full textAbstract:
Corporations are a significant contributor to global unsustainability. Use of ISO 14001 environmental management systems (EMS) are considered logical, needed tools for use in meeting corporate sustainability goals. By paying attention to where users identify benefit and challenges and to what sustainability ‘looks like’ an existing system can be adapted effectively. EMS Enablers were considered in the development of a Sustainability Enablers Model, for use with an existing, effective EMS. Planning Enablers include ensuring alignment of leader values, an appropriately scoped policy, base principles upon which to set objectives and comprehensive aspects. Implementation & Operation Enablers include effective engagement and reporting and operating within a learning organization. The primary Checking Enabler is operating with a learning organization in support of an effective corrective action process. Management Review Enablers include effective use of data by the leadership team to improve performance and alignment of leader or organizational values in motivating changes.
32
許弘育. "Biological fertilizer process managemen-Efficient handling of livestock manure to HMD system as an example." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/t6698m.
Full textAbstract:
碩士嶺東科技大學
高階主管企管碩士在職專班
104
Meets 103 year agricultural statistics annual report based on the agricultural committee, the home raises pigs the quantity approximately 5,450,000 heads, raises chickens approximately 100,000,000, raises the cow approximately 140,000 heads, from this estimates the excrement which birds and beasts raising livestock drains to reach more than 700 Wan Gongdu approximately, has the quite big impact to the human life and the environmental sanitation.The poultry excrement best processing pattern, is after converting into resources compost processing, then returns feeds to the crops use. Before the traditional compost system regulation discrimination processes, procedures and so on fermentation processing and post-processing, in which fermentation processing may again subdivide after front ferments the time, the host fermentation time, ferments (ripely) the time and so on three stages.Must make the regulation time to be long, the result and the quality are unstable; Research case HMD (High temperature Microbiology Decomposition) the poultry excrement highly effective processing system picks the microorganism fast fermentation processing work pattern front, is different with the tradition (nature) place of the compost manufacture for to be possible to cross processing and the post-processing stage slightly, the utilization microorganism nature elevation of temperature characteristic, enters the host fermentation time directly, after and reduces ferments (ripely) the time, needs for 2~6 month-long with the tradition in the ripening fermentation times, reduces then may complete to 7 day in. Investigates grinds the achievement to be possible to provide the poultry lowly the fish breeding and poultry raising cost, the environmental protection, the benefit high compost processing pattern, enhances the organic agricultural reject to use again, reduces to the environmental pollution impact, conducives toward favor the agricultural poultry animal husbandry to be able to continue forever to develop.
33
Ginige, Jeewani A., University of Western Sydney, College of Health and Science, and School of Computing and Mathematics. "Change impact analysis to manage process evolution in web workflows." 2008. http://handle.uws.edu.au:8081/1959.7/32727.
Full textAbstract:
Organisations have processes to manage their business activities, often referred to as business processes. In today’s competitive global economy, automation of processes with appropriate technology is advantageous. However, the paradox of processes automation is the continuous evolution and change that occurs in business processes. As the business processes evolve and change, the underpinning automated systems need to reflect those changes. Even after a decade of research in the areas of business process automation (BPA) and business process evolution management (BPEM), organisations still find it challenging to manage evolution of automated processes. Therefore, this thesis finds answers to the question of “How can business process evolutions be accurately and effectively reflected in already implemented web-based workflow systems?” In order to provide a holistic solution to the above research question, this research introduces a framework named paradigm of process automation – PoPA framework and discusses its role in managing process evolution. This framework embodies a business process at four levels as pragmatic, semantic, syntactic, and implementation. Each of these levels deals with a distinctive representation of a business process. For example, the pragmatic level represents the contextual artefact elements such as Acts, policies, organisational structures, rules, and guidelines; that define a process, and the syntactic level denotes the models created for the purposes of automation. When a change takes place in any one of the levels of the PoPA framework, it creates a propagating impact on elements in the above-mentioned four levels. This propagation of impact takes place due to constraints, associations, dependencies (CAD) among elements within and across the levels (intra and inter-level CAD). When analysing intra and inter-level CAD most correlations are found to be hierarchical; therefore, a relational database structure is appropriate to capture these hierarchical associations. However, operational processes at the semantic level have complex associations, which are not hierarchical. Therefore, this research proposes to use Kleene Algebra with Test (KAT) for representing CAD at the semantic level. Propagating impact does not exclusively depend on inter and intra-level CAD, but is also closely associated with the nature of evolution. Depending on the nature of evolution, the propagating impact can be categorised as direct, indirect, secondary, and non-cautionary (DISN) impact. These DISN impacts suggest the severity of the propagating impact. The core contribution of this research is the Process Evolution and Change Impact Analysis (PECIA) Model, which enables the management of process evolution accurately and effectively in automated systems. In this research, a process automation project named Online Courses Approval System (OCAS) is used as an exploratory case study. The practical utility of the PECIA Model is validated using evolution scenarios of OCAS and epistemic utility is analysed based on a study of the literature. Amidst a plethora of literature on BPA and BPEM, this research is significant due to the following theoretical contributions that facilitate in managing automated processes in tandem with organisational process evolution: ���� PECIA Model holistically captures inter and intra-level CAD of process elements facilitating the propagating impact analysis within and across the four levels of the PoPA framework. • A novel use of KAT to capture CAD among process elements cohesively and completely into linear expressions, in order to analyse the impact propagation. • An algorithm that analyses KAT expressions of a process, to locate DISN impacts so that evolutions can be carried out accurately and effectively. The future works that arise from this work are manifold. These may include improving the use of the PECIA Model as a corporate process knowledge repository, and exploring possible other uses of the PECIA Model and KAT based process expressions.Doctor of Philosophy (PhD)
34
Witty, Derick. "Implementation of a Laboratory Information Management System To Manage Genomic Samples." Thesis, 2013. http://hdl.handle.net/1805/3521.
Full textAbstract:
Indiana University-Purdue University Indianapolis (IUPUI)A Laboratory Information Management Systems (LIMS) is designed to manage laboratory processes and data. It has the ability to extend the core functionality of the LIMS through configuration tools and add-on modules to support the implementation of complex laboratory workflows. The purpose of this project is to demonstrate how laboratory data and processes from a complex workflow can be implemented using a LIMS. Genomic samples have become an important part of the drug development process due to advances in molecular testing technology. This technology evaluates genomic material for disease markers and provides efficient, cost-effective, and accurate results for a growing number of clinical indications. The preparation of the genomic samples for evaluation requires a complex laboratory process called the precision aliquotting workflow. The precision aliquotting workflow processes genomic samples into precisely created aliquots for analysis. The workflow is defined by a set of aliquotting scheme attributes that are executed based on scheme specific rules logic. The aliquotting scheme defines the attributes of each aliquot based on the achieved sample recovery of the genomic sample. The scheme rules logic executes the creation of the aliquots based on the scheme definitions. LabWare LIMS is a Windows® based open architecture system that manages laboratory data and workflow processes. A LabWare LIMS model was developed to implement the precision aliquotting workflow using a combination of core functionality and configured code.
35
Johnston, Keith Norman. "Complexity of thinking and levels of self-complexity required to sustainably manage the environment." Phd thesis, 2008. http://hdl.handle.net/1885/151091.
Full text
36
Babar, Abdul Razzaq Computer Science & Engineering Faculty of Engineering UNSW. "Integration of map and B-SCP in order to manage evolution of strategic it requirements." 2007. http://handle.unsw.edu.au/1959.4/40680.
Full textAbstract:
The scope of requirements engineering must include high-level business objectives and strategies to achieve traceability between IT and business needs in order to ensure alignment. B-SCP handles this issue effectively. However, we must also deal with the evolution of business strategy operationlised in business processes and supporting it. MAP, goal/strategy modelling technique handles such evolution effectively. Integration of MAP with B-SCP can help us to address deficiency of addressing requirements evolution in the B-SCP framework. This thesis presents the first steps in a research project that integrates the requirements engineering methodologies, B-SCP and MAP, in order to manage evolution of strategic IT. Semantic similarities between B-SCP and MAP motivate us to combine both techniques. The integration theory results in three alternative mechanisms through which we can connect MAP with B-SCP. The usefulness of the three mechanisms is tested on two exemplars -- small one and detailed one. These mechanisms have advantages and disadvantages depending upon the complexity of the business system. MAP has a Gap Analysis process inbuilt so this saves on the overhead of inventing a new approach. In addition, MAP also extends B-SCP's capability by the addition of non-deterministic process modelling which allows B-SCP framework to offer multiple views of requirements. During the integration process, we encountered a number of issues. One important was that B-SCP identifies goals as a snapshot in time which are aligned hierarchically from higher level model to lower level model, however MAP identifies processes that strive to achieve goals and do not provide alignment between different levels of MAPs. This was a challenging issue to deal with during the integration.
37
Geyser, J. M. (Judith Mariette). "Decision support system to manage investment risk of grain farmers in South Africa." Thesis, 2001. http://hdl.handle.net/2263/26593.
Full text
38
Wang, Xin. "A framework to manage message level authorisation in service oriented collaborative business processes." Thesis, 2010. https://vuir.vu.edu.au/15802/.
Full textAbstract:
Emerging Web service and business process technologies have provided technological support for business collaboration across organisation boundaries. However, security concerns have become one of the main barriers that prevent its widespread adoption. The aim of the research is to develop a security management system that covers the entire life‐cycle of secure business collaboration from strategy level, security specification from organisational level, system management from design time specification, monitoring and enforcement from run time. In this thesis, we propose a scenariobased requirements analysis approach to make the requirements clear as the first step. The description and explanation of a set of requirements are based on
modelling a variety of representational business collaboration scenarios with Petri Nets.
39
Ferreira, Cláudia Alexandra Rocha. "Use of Petri Nets to Manage Civil Engineering Infrastructures." Doctoral thesis, 2018. http://hdl.handle.net/10362/57404.
Full textAbstract:
Over the last years there has been a shift, in the most developed countries, in investment and efforts within the construction sector. On the one hand, these countries have built infrastructures able to respond to current needs over the last decades, reducing the need for investments in new infrastructures now and in the near future. On the other hand, most of the infrastructures present clear signs of deterioration, making it fundamental to invest correctly in their recovery. The ageing of infrastructure
together with the scarce budgets available for maintenance and rehabilitation are the main reasons for the development of decision support tools, as a mean to maximize the impact of investments.
The objective of the present work is to develop a methodology for optimizing maintenance strategies, considering the available information on infrastructure degradation and the impact of maintenance in economic terms and loss of functionality, making possible the implementation of a management system transversal to different types of civil engineering infrastructures. The methodology used in the deterioration model is based on the concept of timed Petri nets. The maintenance model was built from the deterioration model, including the inspection, maintenance and renewal processes. The optimization of maintenance is performed through genetic algorithms.
The deterioration and maintenance model was applied to components of two types of infrastructure: bridges (pre-stressed concrete decks and bearings) and buildings (ceramic claddings). The complete management system was used to analyse a section of a road network. All examples are based on Portuguese data.
40
Moropane, Itumeleng Vanessa. "Determination of system and processes employed by the property industry to manage information ethics in Gauteng South Africa." Diss., 2018. http://hdl.handle.net/10500/27162.
Full textAbstract:
The South African property sector is characterised by property practitioner firms
that fail to comply with the Estate Agency Affairs Board (EAAB) code of conduct
and firms having inefficient systems which are unable to combat hacking and
cybercrime in the sector. Although property practitioner firms have systems and
processes in place, there are still instances of unethical behaviour. Failure to
prevent client personal information from being leaked is still a major problem in
the sector, this issue can be addressed by demonstrating due diligence with
respect to safeguarding sensitive information. The accuracy of information is also
a problem in the sector and requires firms to resort to analysing collected data
before capturing it, in order to maintain accuracy. The sector encounter illegal
access to systems including breaking the password protected websites and
password protection on a computer system.
The objectives for this study were to investigate the extent to which firms enforce
Information Ethics (IE), explore the systems and processes put in place by firms
to enforce IE and to explore the challenges experienced by the firms in the
Gauteng province when enforcing IE. The study was qualitative in nature and indepth interviews were conducted to gather information from five managers and
five employees within the firm situated in Gauteng province.
The study found that these property practitioner firms enforce IE to a certain
extent. These firms use (22) systems and processes to enforce IE and
experienced (5) challenges during the enforcement of IE. The study concludes
that these property practitioner firms enforce IE using different systems and
processes and experience challenges during enforcement. The list of IE
enforcement systems and processes and challenges identified in this study will
assist policy makers in compiling IE policies. The findings will also assist firms in
IE enforcement and reduction of IE enforcement challenges.Business Management
M. Com. (Business Management)
41
Henderson, Sarah. "How do people manage their documents?: an empirical investigation into personal document management practices among knowledge workers." 2009. http://hdl.handle.net/2292/5230.
Full textAbstract:
Personal document management is the activity of managing a collection of digital documents performed by the owner of the documents, and consists of creation/acquisition, organisation, finding and maintenance. Document management is a pervasive aspect of digital work, but has received relatively little attention from researchers. The hierarchical file system used by most people to manage their documents has not conceptually changed in decades. Although revolutionary prototypes have been developed, these have not been grounded in a thorough understanding of document management behaviour and therefore have not resulted in significant changes to document management interfaces. Improvements in understanding document management can result in productivity gains for knowledge workers, and since document management is such a common activity, small improvements can deliver large gains. The aim of this research was to understand how people manage their personal document collections and to develop guidelines for the development of tools to support personal document management. A field study was conducted that included interviews, a survey and file system snapshot. The interviews were conducted with ten participants to investigate their document management strategies, structures and struggles. In addition to qualitative analysis of semi-structured interviews, a novel investigation technique was developed in the form of a file system snapshot which collects information about document structures and derives a number of metrics which describe the document structure. A survey was also conducted, consisting of a questionnaire and a file system snapshot, which enabled the findings of the field study to be validated, and to collect information from a greater number of participants. The results of this research culminated in (1) development of a conceptual framework highlighting the key personal document management attitudes, behaviours and concerns; (2) model of basic operations that any document management system needs to provide; (3) identification of piling, filing and structuring as three key document management strategies; (4) guidelines for the development of user interfaces to support document management, including specific guidelines for each document management strategy. These contributions both improve knowledge of personal document management on which future research can build, and provide practical advice to document management system designers which should result in the development of more usable system.