Introduction to Software Engineering

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$(Microsoft PowerPoint - Topic 4.ppt [Mode de compatibilit\351])$

How do we find a dynamic model? • Start with a use case or scenario • Model interaction between objects sequence diagram • Model dynamic behavior of single objects state chart diagram • Flow of events from ―Dial a Number‖ Use case: ● Caller lifts receiver ● Dial tone begins ● Caller dials ● Phone rings ● Callee answers phone ● Ringing stops ● .... Winter 2009, Maheswaran Introduction to Software Engineering – ECSE321 Unit 6 – Analysis /56
Sequence Diagrams • From the flow of events in the use case or scenario proceed to the sequence diagram • A sequence diagram is a graphical description of objects participating in a use case or scenario • Relation to object identification: ● Objects/classes have already been identified during object modeling ● Objects are identified as a result of dynamic modeling • Heuristic: ● An event always has a sender and a receiver. Find them for each event These are the objects participating in the use case Winter 2009, Maheswaran Introduction to Software Engineering – ECSE321 Unit 6 – Analysis /57
Page 1 and 2:
Introduction to Software Engineerin
Page 3 and 4:
What Is Design? •Design is the cr
Page 5 and 6: Analysis Goals, Inputs, and Activit
Page 7 and 8: Analysis Models An analysis model i
Page 9 and 10: Types of Class Models • Analysis
Page 11 and 12: Classes and Objects • An object i
Page 13 and 14: A Brief UML Review - Names •A nam
Page 15 and 16: Attribute Specification Format name
Page 17 and 18: Operation Specification Format name
Page 19 and 20: Association Lines manages subordina
Page 21 and 22: Class Diagram Rules •Class diagra
Page 23 and 24: Class Diagram Heuristics… • Sti
Page 25 and 26: Object Diagrams •Object diagrams
Page 27 and 28: Object Attribute Format attribute-n
Page 29 and 30: Object Links •Show that particula
Page 31 and 32: Brief Recap •Engineering design b
Page 33 and 34: Conceptual Modeling •What is conc
Page 35 and 36: Uses of Conceptual Models •In pro
Page 37 and 38: Caldera Example Caldera is a smart
Page 39 and 40: Identifying Classes-Rationalizing
Page 41 and 42: Caldera Example - From Description
Page 43 and 44: Adding Attributes 1 •Study the SR
Page 45 and 46: Caldera Example, Draft 2 Homeowner
Page 47 and 48: Adding Associations- Rationalizing
Page 49 and 50: Caldera Example, Draft 3 Homeowner
Page 51 and 52: Caldera Example, Final Draft Homeow
Page 53 and 54: Summary… •There is a process fo
Page 55: Why do we need a dynamic model? •
Page 59 and 60: Notations 1. Columns = objects 1. L
Page 61 and 62: submitReportToDispatcher() Mange Em
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Introduction to Software Engineering

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