Ch 17 - Chapter 17 Click to edit Master subtitle style...

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Click to edit Master subtitle style Chapter - 17 GRASP Designing Objects with Responsibilities
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Chapter Objectives Learn to apply five of the GRASP principles or patterns for OOD
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Object Design What’s been done Prior activities and artifacts How do things relate Influence of use cases and OO design How much design modeling to do What’s the output
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Responsibility Responsibilities Contract or obligation of a classifier Roles Behavior of object Collaboration
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Responsibility-Driven Design Doing Doing something Create object, do a calculation Initiating action in other objects Controlling and coordinating activities in other objects
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Responsibility-Driven Design Knowing About private encapsulated data About related objects Things it can derive or calculate
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GRASP G eneral R esponsibility A ssignment S oftware P atterns
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GRASP Principles or patters are a learning aid Helps in understanding Essential object design Methodical, reasonable application of design reasoning
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This note was uploaded on 08/29/2011 for the course SEN 632 taught by Professor Aslam-mir during the Spring '11 term at National.

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Ch 17 - Chapter 17 Click to edit Master subtitle style...

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