Introduction › Design Basics › Prerequisites

Prerequisites

Design can begin after you have a partial or complete Data Model and a business system defined. Other information, however, can be useful for design.

The following list offers one starting place of prerequisites to design. The list does not represent a sequence; it shows only a set of prerequisites that can be satisfied in different sequences.

• A Data Model, a partial or complete Entity Relationship Diagram
• Activity model, a partial or complete Process Hierarchy Diagram
• Interaction model, a partial or complete set of Process Action Diagrams
• Implementation plan, a partial or complete plan determined through matrix clustering and affinity analysis
• Business system definition, defined through Business System Definition

Several development life cycles use information-engineering techniques. You can prefer a different set of prerequisites or set of concurrent requisites. For a discussion of the alternative life cycles that use information engineering techniques, see the Client Server Design Guide.