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Systems Analysis and Design: Chapter 9 - Describing Process Specifications and Structured Decisions

Systems Analysis and Design: Chapter 9 - Describing Process Specifications and Structured Decision's Objectives is Understand the purpose of process specifications; Recognize the difference between structured and semistructured decisions. | Describing Process Specifications and Structured Decisions Systems Analysis and Design, 7e Kendall & Kendall 9 © 2008 Pearson Prentice Hall Learning Objectives Understand the purpose of process specifications Recognize the difference between structured and semistructured decisions Use structured English, decision tables, and decision trees to analyze, describe, and document structured decisions Choose an appropriate decision analysis method for analyzing structured decisions and creating process specifications 9- Kendall & Kendall Logic of Decisions Documenting and analyzing logic: Structured English Decision tables Decision trees Logic and structured decisions are distinguishable from semistructured decisions Structured decision analysis methods promote completeness, accuracy, and communication 9- Kendall & Kendall It is important to recognize logic and structured decisions that occur in a business and how they are different from semistructured decisions that tend to involve | Describing Process Specifications and Structured Decisions Systems Analysis and Design, 7e Kendall & Kendall 9 © 2008 Pearson Prentice Hall Learning Objectives Understand the purpose of process specifications Recognize the difference between structured and semistructured decisions Use structured English, decision tables, and decision trees to analyze, describe, and document structured decisions Choose an appropriate decision analysis method for analyzing structured decisions and creating process specifications 9- Kendall & Kendall Logic of Decisions Documenting and analyzing logic: Structured English Decision tables Decision trees Logic and structured decisions are distinguishable from semistructured decisions Structured decision analysis methods promote completeness, accuracy, and communication 9- Kendall & Kendall It is important to recognize logic and structured decisions that occur in a business and how they are different from semistructured decisions that tend to involve human judgments. It is also critical to recognize that structured decisions lend themselves to analysis with systematic methods. Major Topics Process specifications Business rules Structured English Decision tables Decision trees Horizontal balancing 9- Kendall & Kendall Process Specifications Sometimes called minispecs Created for primitive processes as well as for some higher level processes on a data flow diagram Created for class methods in object-oriented design and for the steps in a use case 9- Kendall & Kendall Called minispecs because they are a small portion of the total product specifications. Specifications explain the decision-making logic and formulas that transform process input data into output. Goals of Producing Process Specifications Reduce process ambiguity Obtain a precise description of what is accomplished Validate the system design 9- Kendall & Kendall Reduce process ambiguity – compels the analyst to learn details about how the process works. Obtain