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Object Oriented Design Guidelines and Best Practices

G080 / Version 1.0

Release Date: 0610-May-Apr-2005

Document Title: Best Practices

Tata Document ID:

Version No: 0.31

Authors: Java CoE

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Table of Contents

0 Object Oriented Design Guidelines and Best Practices 3

0.1 Purpose 3

0.2 Scope 3

0.3 Definitions and Acronyms 3

1 Object Oriented Design 4

1.1 Object Oriented Design Principles 4

1.1.1 One class – one concept 4

1.1.2 Objects represent behaviour, not data 4

1.1.3 Open/Close Principle - OCP 6

1.1.4 Dependency Inversion Principle 8

1.1.6 Interface Segregation Principle 9

1.1.7 Use Design Patterns 12

1.2 Importance of Package Design 13

1.2.1 Defining Packages 13

1.2.2 The Acyclic Dependency Principle (ADP) 13

1.2.3 The Stable Dependencies Principle (SDP) 14

1.2.4 Stable Abstractions Principle (SAP) 15

1.2.5 The Common Reuse Principle (CRP) 15

1.2.6 The Common...