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7) Analysis

Large System Development

QuestionAnswer
Class definition approaches 1) Application domain approach 2) Syntactic approach (analyze use case texts) 3) Design patterns approach 4) Component-based approach
Object Types 1) Bounday Obejcts 2) Control Obejcts 3) Entity Objects
Mapping parts of speech to model components (Abbot’s Technique) 1) proper noun -> object 2) common noun -> class 3) doing verb -> operation 4) having verb -> aggregation 5) modal verb -> contraint 6) Adjective -> attribute 7) Transitive verb -> operation 8) Intransitive verb -> constrain, class, association
UML is extendable with 1) tags 2) Constrains 3) Stereotypes
UML stereotypes For example, when modeling a network you might need to have symbols for representing routers and hubs. By using stereotyped nodes you can make these things appear as primitive building blocks.
Dynamic Models 1) Interaction Diagrams 2) State chart diagrams
Interaction diagrams 1) Sequence Diagram 2) Collaboration Diagram
State Chart Diagram 1) A state machine that describes the response of an object of a given class to the receipt of outside stimuli (Events). 2) Activity Diagram
Layout of Sequence Diagrams Layout: 1st column: Should be the actor of the use case 2nd column: Should be a boundary object 3rd column: Should be the control object that manages the rest of the use case
Fork Diagram (Sequence) The dynamic behavior is placed in a single object, usually a control object
Stair Diagram (Sequence) The dynamic behavior is distributed. Eacho bject delegates responsibility to other objects
State An abstraction of the attributes of a class ◦ State is the aggregation of several attributes a class
Verification Verification is an equivalence check between the transformation of two models
Validation Validation is the comparison of the model with reality
Created by: timeakiss