Physical Model Design

Description	This task defines the final object model based on the logical model and evolved through the event trace task. This model will include any technology specific design based on data and process placement.
Risk & Impact:	This task is critical as it defines exactly what will be built. Without a firm specification, the work can not be effectively divided among team members for construction.
Inputs:	Event Diagrams Logical Design Model
Upstream Tasks:	Event Diagrams
Downstream Tasks:	Packaging Model
Questions Asked:	What are the entities defined in the Object Interaction Diagrams? What are the interfaces defined in the Object Interaction Diagrams? What additional private behavior may be needed?
Iterates with:	Physical Database Design
Deliverables:	Physical Model – A complete object model showing classes, attributes, behavior, relationships, etc. This model is different from the logical domain model in that it contains all classes necessary to support implementation.