Guideline: Design Constraints |
The design constraints identify the optimization criteria for the system design.
Relationships
Related Elements | Software Analysis Discipline Architecture Software Design Discipline Optimize Concurrency Architecture Identifying Design Criteria Optimize Model Optimize Class Optimize Mechanistic Model Optimize Distribution Architecture Optimize Safety and Reliability Architecture Optimize Deployment Architecture Optimize Subsystem and Component Architecture Optimize Secondary Architectural Views
Main Description
The design constraints include not only the system quality of service (QoS) requirements but also other constraints such as optimization goals, standards to which the system must adhere, etc. The key concept for design constraints is that they are optimization criteria for the design. Since optimizing one aspect of a design de-optimizes others, it is crucial to rank the criteria in order of importance. A set of common design criteria are: Performance Worst-case performance Average-case performance Read vs. write performance Predictability Schedulability Space complexity Resource usage Safety Reliability Portability Reusability Maintainability Extensibility Testability Provability Standards conformance
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