Model input management: a case study
Article Abstract:
In many cases, model developers deliver models to model users who analyze alternatives by changing model input values. These model users need software capabilities and an interface that supports the process of data entry and editing as well as selection among input values to define a scenario for analysis. In addition, the interface must use context specific language. Such an interface was developed to united, for the model user, three inter-related models of a network of petroleum inventories. A database management system, transparent to the model user, was used to implement the capabilities accessed through the user interface. Thus, this case study illustrates requirements for model user software support and one way of meeting them. (Reprinted by permission of the publisher.)
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1992
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Computing the Input to a Linear Model
Article Abstract:
Most simulation problems involve calculating output from input, given configuration and parameters. Some problems, however, require taking a known output and determining the input. A good approach to this problem in a linear system is to use numerical integration which yields greater stability and accuracy than does numerical differentiation. Outputs and calculated inputs for an example of a linear model are presented.
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1983
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Annals of the History of Computing
Article Abstract:
IBM manufactured the first SAGE (Semi-Automatic Ground Environment) computer in 1958. Eventually, twenty-three SAGE centers went into operation, providing air defense support. By early 1984, the six remaining centers will be closed down. The history of the system is described in detail in the October 1983 issue of the Annals of the History of Computing.
Publication Name: SIMULATION
Subject: Engineering and manufacturing industries
ISSN: 0037-5497
Year: 1984
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