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作者：INMAN, RR; BULFIN, RL
作者单位：Auburn University System; Auburn University
摘要：We provide a new formulation and solution procedure to sequence a mixed model just-in-time (JIT) assembly system. Mixed model JIT assembly systems are a fundamental part of the well-known Toyota Production System. The underlying idea in sequencing these systems is to maintain a constant usage rate of all parts on the line. We give a polynomial algorithm to determine the optimal sequence for an objective function that is mathematically different, but intuitively similar to the objective functio...
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作者：POWERS, K; HANSSENS, DM; HSER, YI; ANGLIN, MD
作者单位：University of California System; University of California Los Angeles; University of California System; University of California Los Angeles; University of California System; University of California Los Angeles
摘要：The effects of treatment and legal supervision on narcotics use and criminal activities were assessed by applying newly developed time-series methods that disentangle the long-term (permanent) and the short-term (temporary) effects of intervention. A multivariate systems approach was used to characterize the dynamic interplay of several related behaviors at a group level over a long period of time. Five variables-abstinence from narcotics use, daily narcotics use (or addiction), property crime...
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作者：SARKAR, D; ZANGWILL, WI
作者单位：University of Chicago
摘要：Utilizing a cyclic queue system, this paper investigates the effect of variance on a multi-item production facility. The variance of setup time, service rate and arrival rate is shown to have a powerful and sometimes paradoxical influence. Reduction in setup time, for example, is usually presumed to reduce inventory. We demonstrate that inventory can blow up if setup time is cut. Another paradoxical effect of variance is on processing rate. Speeding up the processing rate should reduce the mat...
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作者：MILLER, D
作者单位：McGill University; University of Alberta
摘要：It has often been argued that an organization's strategy and structure must be tailored or matched to the challenges posed by its environment. Our research shows that this match is less likely to be achieved by long-tenured CEO's than by their counterparts with less tenure. It also suggests that the failure to match strategy and environment hurts financial performance. More specifically, CEO tenure related inversely to the prescribed match between organization and environment, especially in un...
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作者：BENSON, PG; SARAPH, JV; SCHROEDER, RG
作者单位：Minnesota State Colleges & Universities; Saint Cloud State University
摘要：While the quality literature abounds with prescriptions for how quality should be managed, no one has proposed an organization-theory explanation for how quality is managed in organizations. This paper proposes a system-structural model of quality management that relates organizational quality context, actual quality management, ideal quality management, and quality performance. The relationships between organizational quality context and actual and ideal quality management are investigated us...
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作者：ALI, AI; COOK, WD; SEIFORD, LM
作者单位：York University - Canada; University of Massachusetts System; University of Massachusetts Amherst
摘要：In a recent paper, Golany (1988) proposes an interesting extension of Data Envelopment Analysis to the situation where ordinal relations among weights corresponding to certain dimensions exist. However, the development of the extended model contains mathematical errors and the proposed equivalence is incorrect. We establish the correct model equivalence and prove that weak ordinal relations require a nonstandard DEA model. We also show that the case of strict ordinal relations can be handled w...
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作者：SHAKUN, MF
摘要：We discuss problem restructuring involving evolution of the problem representation in group decision and negotiation support systems. We develop the evolutionary systems design (ESD) approach to restructuring involving a heuristic controls/goals/values referral process and other domain-independent methodological knowledge, such as constraint relaxation, contingency planning, coalition formation and flexible goal target. These ideas are applied to multiple problem restructuring in a scenario mo...
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作者：RUEFLI, TW
作者单位：University of Texas System; University of Texas Austin
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作者：DREXL, A
摘要：A recurring problem in project management involves the allocation of scarce resources to the individual jobs comprising the project. In many situations such as audit scheduling, the resources correspond to individuals (skilled labour). This naturally leads to an assignment type project scheduling problem, i.e. a project has to be processed by assigning one of several individuals (resources) to each job. In this paper we consider the nonpreemptive variant of a resource-constrained project job-a...
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作者：MANDELL, MB
摘要：Distributional equity is a particularly salient objective in public sector decision making in general, and decision making concerning the delivery of public services such as education, libraries, sanitation, and public safety in particular. In this paper two related bicriteria mathematical programming models are developed for identifying the trade-offs between overall output (effectiveness) and equity that result from alternative allocations of service resources among different service deliver...
