5-lecture 2-2010 problem situation

5-lecture 2-2010 problem situation -...

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Spring 2010 - ÇG IE398 - lecture 2 1 lecture 2 : the problem   situation this lecture is about problem formulation, We discuss: the components of a problem situation mind maps rich pictures boundary setting
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Spring 2010 - ÇG IE398 - lecture 2 2
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Spring 2010 - ÇG IE398 - lecture 2 3 components of a problem   decision maker objectives decision criterion performance measure control inputs or courses of action problem context or situation this is just a rough sketch; in practice the situation is more  complicated and formulation has to go through  progressively more refined reformulations and refinements  as deeper insight is gained: this pocess is called  problem   structuring   or  issue   structuring  
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Spring 2010 - ÇG IE398 - lecture 2 4 goal  indicates overall purpose objective  this is sometimes more specific than a goal e.g. finding the best location for an ambulance service between a goal and an objective) performance   measure an o/p that serves to  measure system performance objective   function mathematical expression of  performance measure, expressing o/p as a function of  control i/p’s. e.g. profit to be maximised or distance to be  minimised decision   criterion e.g. maximise expected profit ,  maximise rate of return on investments; minimise total  distance, minimise the longest distance etc.
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5-lecture 2-2010 problem situation -...

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