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Deborah A. Sadowski ，Mark R. Grabau+ N* Y3 s+ b" m2 b: ?
There's a common misconception that performing a simulation study involves a sequence of steps (e.g., project definition, model formulation, verification, validation, analysis). To the contrary, all elements of a simulation project should be performed repeatedly throughout the effort,
% Y& ]- J! h( o3 d! ?$ ^/ kgrowing in scope as the model progresses.
1 Z+ E) K( s9 _7 R. q2 i6 [In the traditional view, projects suffer from too strong a focus on the model (and perhaps the animation), so that after the inevitable delays and problems, there's no time left to run scenarios. Instead, the analyst is faced with a presentation deadline that's firm and little time to experi-- [- U9 p8 T7 B5 [8 k% [
ment, analyze, or think. 3 Z* R$ o1 p$ G0 q
Instead, you should schedule the project in complete phases. Intermediate milestones, spaced no more than about two weeks apart in a medium to large project, should include specific goals for the model, animation, data, and analysis. By the time you reach the last 25% of your time on the project, you should have addressed the basic analysis issues of run length, warm-up time, etc. and should already have performed preliminary analysis on the model for a number of different scenarios. |
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发表于 2009-7-16 16:27:37
