Lecture 9: Information hiding and objects

• Lecture 9 Information Hiding and Procedure-Based Architectures, including Abstract Data Types and Objects .
• Context .
• Overview .
• Main Program/Subroutine Pattern .
• Main Program and Subroutines .
• Recurring Course Theme: Criteria for Modularization .
• Problems Facing Software Developers c. 1970 .
• Modularization Problems .
• Module Decomposition .
• A7E Module Decomposition .
• Example: Data Banker Module .
• Abstract Data Types .
• Encapsulation .
• Data Abstraction or Object-Oriented .
• Object Architectures .
• Maintaining Representation Invariants .
• Objects: Vocabulary .
• Finding Objects: Model the Real World .
• Problems with Object Approaches .
• Managing Large Object Sets .
• Managing Many Definitions .
• Inheritance .
• Inheritance .
• Polymorphism/Dynamic Binding .
• Polymorphism/Dynamic Binding .
• To Summarize: Elements of Object Architectures .
• Example: Flight Simulation .
• Object Oriented Decomposition of Air Vehicle.

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Heather L. Marko

Modified: 5/20/98