A4 Evaluating models The concepts of evaluating models in the decision-making process.
The factors to consider in the evaluation of the model:
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how well the model reflects the scenario being modelled
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the decisions that can be made, using the model
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whether the model can be improved
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whether or not there are other factors that could be used to extend the model.
A5 Documenting and justifying decisions The requirements for documenting and justifying the model:
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summarising the situation
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identifying information sources used
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indicating the factors considered
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indicating the method used to reach a decision
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justifying the choice of information sources, factors considered and
methods used.
Learning aim B: Design a data model to meet client requirements B1 Functional specification The concepts and processes of a functional specification.
Designing a functional specification to meet requirements:
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nature of the problem
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functions the model must perform
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user interface
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constraints
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success criteria.
B2 Spreadsheet model design The uses and requirements of spreadsheet model design.
A design that shows how the spreadsheet model will look and work.
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Producing worksheet structure diagrams that show:
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layout and presentation
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processing
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data entry and validation
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navigation
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output.
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Producing a test plan to show:
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test data
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purpose of the test
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expected result.