| 摘要 |
A method of creating a systems requirement document by using a numerical modeling tool, such as a spreadsheet, to prototype an operational process in terms of a numerical picture of the goals, metrics, performance targets and constraints used by managers of the operational process. A process design blueprint is defined for the operational process, including data sources and data sinks. A representative model of the process design blueprint is created. If the model is not detailed enough for implementation by IT professionals, model objects and data flows are added to the blueprint and the representative model is modified to be consistent with the blueprint. Surrogate calculations may be made for computational task objects or, alternatively, separate process design blueprints may be generated for such computational task objects. This cycle is repeated until the model is detailed enough for implementation.
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