Kushlan, JA Et Al. Waterbird Conservation for the Americas, Washington, DC, USA, 78 pp. (2002). y... more Kushlan, JA Et Al. Waterbird Conservation for the Americas, Washington, DC, USA, 78 pp. (2002). yr2002 english.
Security concerns are often the primary reason given for not purchasing products online. We belie... more Security concerns are often the primary reason given for not purchasing products online. We believe these concerns may be rooted in the buyers' unfamiliarity with the associated technology. To test this hypothesis, we compared two student groups: those from technical and/or business programs and those from non-technical programs. We measured students' (1) extent of use of the Internet, and (2) extent of product purchases via the Internet. We conclude there is a significant difference in total time spent online per week and in the amount of risk associated with online spending. While there is no difference in the average amount spent online per month, there is a difference in the type of products being purchased.
Simulation projects provide a useful way to tie together the expected learning outcomes in a simu... more Simulation projects provide a useful way to tie together the expected learning outcomes in a simulation class. Designing a good project is a challenging task and simulation instructors are always on the lookout for interesting ideas. This paper provides simulation instructors with two interesting simulation applications, a supply chain project and a web site design project. The supply chain problem is based on a real company problem and the web site design problem is based on a textbook problem. Each application is described in detail and links are provided so that other simulation instructors can access handouts and possible solutions. The authors also provide some insights about simulation project design.
Concurrent Engineering has always been an important field within military industry and is gaining... more Concurrent Engineering has always been an important field within military industry and is gaining recognition within commercial industry as well. Studies have suggested that long-range research efforts need to be directed to the area of integrated logistics. In order to satisfy the overall logistics objectives, product designs must incorporate consideration of the impact that design decisions have on operations, maintenance, transportation and supply. This paper presents a model that carries out a concurrent optimization of a product design and its associated manufacturing and logistics support systems. We offer this model as a framework for decision support of concurrent engineering activities.
We describe a methodology for making the decisions associated with the concurrent engineering of ... more We describe a methodology for making the decisions associated with the concurrent engineering of a product and its downstream field support. We adopt, for the overall metrics for evaluating these decisions, long-run system availability and life-cycle cost. The decisions that constitute the concurrent engineering effort can be categorized into three phases: designing the product; designing the manufacturing and logistics systems; and setting operations-control policies for parts production and field support. As an enhancement to well-established methods of coordinating decision makers in concurrent engineering and sharing data across different phases of design and deployment, we have developed a methodology that simultaneously makes the decisions that constitute these phases. This methodology is based on a dynamic programming model of these decisions which is robust and efficient when compared to manual methods of coordinating the concurrent engineering effort. We recommend its use as a decision support mechanism, not as a substitute for interaction among design-team members.
Kushlan, JA Et Al. Waterbird Conservation for the Americas, Washington, DC, USA, 78 pp. (2002). y... more Kushlan, JA Et Al. Waterbird Conservation for the Americas, Washington, DC, USA, 78 pp. (2002). yr2002 english.
Security concerns are often the primary reason given for not purchasing products online. We belie... more Security concerns are often the primary reason given for not purchasing products online. We believe these concerns may be rooted in the buyers' unfamiliarity with the associated technology. To test this hypothesis, we compared two student groups: those from technical and/or business programs and those from non-technical programs. We measured students' (1) extent of use of the Internet, and (2) extent of product purchases via the Internet. We conclude there is a significant difference in total time spent online per week and in the amount of risk associated with online spending. While there is no difference in the average amount spent online per month, there is a difference in the type of products being purchased.
Simulation projects provide a useful way to tie together the expected learning outcomes in a simu... more Simulation projects provide a useful way to tie together the expected learning outcomes in a simulation class. Designing a good project is a challenging task and simulation instructors are always on the lookout for interesting ideas. This paper provides simulation instructors with two interesting simulation applications, a supply chain project and a web site design project. The supply chain problem is based on a real company problem and the web site design problem is based on a textbook problem. Each application is described in detail and links are provided so that other simulation instructors can access handouts and possible solutions. The authors also provide some insights about simulation project design.
Concurrent Engineering has always been an important field within military industry and is gaining... more Concurrent Engineering has always been an important field within military industry and is gaining recognition within commercial industry as well. Studies have suggested that long-range research efforts need to be directed to the area of integrated logistics. In order to satisfy the overall logistics objectives, product designs must incorporate consideration of the impact that design decisions have on operations, maintenance, transportation and supply. This paper presents a model that carries out a concurrent optimization of a product design and its associated manufacturing and logistics support systems. We offer this model as a framework for decision support of concurrent engineering activities.
We describe a methodology for making the decisions associated with the concurrent engineering of ... more We describe a methodology for making the decisions associated with the concurrent engineering of a product and its downstream field support. We adopt, for the overall metrics for evaluating these decisions, long-run system availability and life-cycle cost. The decisions that constitute the concurrent engineering effort can be categorized into three phases: designing the product; designing the manufacturing and logistics systems; and setting operations-control policies for parts production and field support. As an enhancement to well-established methods of coordinating decision makers in concurrent engineering and sharing data across different phases of design and deployment, we have developed a methodology that simultaneously makes the decisions that constitute these phases. This methodology is based on a dynamic programming model of these decisions which is robust and efficient when compared to manual methods of coordinating the concurrent engineering effort. We recommend its use as a decision support mechanism, not as a substitute for interaction among design-team members.
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Papers by Melanie Hatch