Gopinath                                                                                                          Narendra U.P                                           Back

Requirements

usecases

Analysis

Architecture

Deisgn
Analysis Model
An analysis model builds upon the key use cases identified in the Use case model and the Collaboration diagrams. This phase works more towards towards the Design.
This is done with the help of various diagrams like the Abstractions, Class diagram, Activity diagram for important business processes , State chart; diagram for interesting objects.
1 Abstractions for the use cases that have been shown are:

2 Use case realization for identified use cases

Each of the use cases along with its abstractions are analyzed further via the sequence and collaboration diagrams, Ultimately discovering the active, persistent, boundary, entity and control classes, which are listed below. This is known as use case realization.

  active classes  boundary classes  entity classes  control classes
2.1 Monitor Auction
 seller agent
buyer agent		   Business rules validate bid/offer
notify
system
2.2 Set up auction
 seller agent IEnter Details
IOutput Details		 Business Rules
Item Database		 validate bid/offer

2.3 place the Bid
 buyer agent IEnter Details
IOutput Details		 Business Rules
Item Database		 validate bid/offer

2.4 Auction match		 buyer agent
seller agent		   Business Rules
Item Database		 validate bid/offer
3 class diagram  First all the possible  classes are identified. They are  

user , seller ,buyer, auction , bid, auction monitor , auction model ,agent ,item ,payment ,search
 The detailed class diagram obtained in an iterative manner is as shown below 
click on the image to enlarge the image