A System Design document captures the detailed system design of the system or a sub-system. It does so by describing a Design Model and how that model realizes the individual use-cases of the system/sub-system. The Design Model is described in terms of subsystems, classes/objects, interfaces, protocols, data models, etc. The Design Model is usually not described in detail in a regular word-processing document. Instead, special tools for software analysis and design are used.

The person responsible for Project Technology approves System Design documents.

• System Design

• System Architecture
• Functional Specification
• Supplementary Specification

• Test Cases
• Implementation and integration activities