On the Criteria to Be Used in Decomposing Systems into Modules

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On the Criteria to Be Used in Decomposing Systems
into Modules

• Written by D.L. Parnas
• Presented by Conner Hansen

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Predicted Benefits

• Development Time
• Maintenance and Feature Development
• System Design and Understanding

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Subroutines vs Modularization

• A program that has subroutines in not necessarily
  modularized.
• A programs subroutines can be mapped out with a
  flowchart.
• Modularization utilizes information hiding in
  addition to flowchart design.

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Information Hiding

• Ensures a clean separation
• Results in a hierarchy
• Key to modularization