Concept

What is a generalization-specialization (gen-spec) relationship?

A generalization-specialization (gen-spec) relationship states that one object is a kind-of (or is-a) the other, and that the other is a generalization of the object. In Smalltalk, we implement gen-spec as a superclass (generalization) and subclass (specialization).

References to this concept:

• Step: Test the FrogMuppet and GrouchMuppet classes. in Project: Muppet Classes
• Step: Create the FrogMuppet and GrouchMuppet classes. in Project: Muppet Classes
• Step: Design the program using the graphical notation to drive the process. in Project: Fish World Project
• Step: Build the DivisorCount class and its methods in Project: P1-DivisorCount (Derrick)
• Step: Dynamic Object Oriented Analysis in Project: P2 - Spreadsheets (Janak)
• Step: Design of Spreadsheet Classes in Project: P2 - Spreadsheets (Derrick)
• Step: Problem Domain Analysis in Project: P2 - Spreadsheets (Derrick)
• Step: Problem Domain Analysis in Project: P2 - Spreadsheets (Janak)
• Step: Analyze the problem in Project: P1-DivisorCount (Derrick)
• Step: Analyze the problem in Project: P1-DivisorCount (Masud)
• Step: Create the SpreadsheetViewContainer in Project: P2 - Spreadsheets (Janak)
• Step: Review the problem statement in Project: P1-DivisorCount (Derrick)
• Step: Review the problem statement in Project: P1-DivisorCount (Masud)
• Step: Object Interactions in Project: P2 - Spreadsheets (Derrick)