Structured Systems Analysis and Design

Duration:   3 days

Participants:   Application programmers and developers.

Objectives:   Upon successful completion of this course you will be able to: -  Use tools such as functional decomposition (hierarchy charts/action diagrams) and pseudocode to analyze and model the logic of a program. -  Implement a structured program using top-down modular design and the fundamental logic structures. -  Lead and participate in peer reviews in the form of structured walkthroughs.

Overview:   . The keystone of all good programs is sound logic. In a series of class exercises that gradually build in complexity, you will design the logic structures fundamental to business application programs.

Prerequisites:   Programming experience in a procedural language such as COBOL, COBOL II, PL/I, or Assembler is required.

Format:   Lecture and discussion with classroom exercises.

Topic Outline:   -  Introduction to Structured Programming Logic Tools         Benefits of standard logic tools         Team approach to programming         Position in the structured design life cycle         The tools              Functional decomposition              Pseudocode              Structured walkthrough -  Understanding and Using the Tools         Modules              Modular independence              Module information              Single entry/exit         Functional decomposition - hierarchy charts              Top-down design              Coupling and cohesion              Concept and uses              Rules         Pseudocode              Basic control structures                 Sequence                 Selection (IF-THEN-ELSE and DO CASE)                 Iteration (DO WHILE and PERFORM UNTIL)              HIPO (Hierarchical Input-Process-Output) Charts                 Flow of data              Harmful effects of GOTOs         Structured walkthrough              Objectives and purpose              Role of the participants              Steps in a walkthrough              Developing effective communication         Code implementation              Self-documenting code              Naming conventions              Indentation              Literals with special meaning              Use of periods -  Implementing Logic Structures         Read-process-write              Page breaks and headings              Validation         Sequence checking         File merge         Transaction master update         Control break:;  one, two, and three-level         Direct file access vs sequential access         Table processing

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