Performance

Definition

Performance

the quality factor representing the degree to which a business enterprise, application, or component operates within its designated temporal constraints

Objectives

The typical objectives of performance are to:

• Model execution time.
• Support the analysis and specification of performance requirements.

Subtypes

Performance is typically classified into the following subtypes:

• Hardware Performance
• Network Performance
• Software Performance

Subfactors

Performance is typically decomposed into the following aggregation hierarchy of subfactors:

• Jitter
• Latency
• Response_Time
• Schedulability
• Throughput

Measure

Performance is typically measured in terms of:

• TBD

Mechanisms

Typical mechanisms for achieving performance include:

• TBD

Guidelines

The following guidelines have been found to be useful with respect to performance:

• Remember that the performance of software components depends greatly on the associated hardware components and that the power of hardware components evolves rapidly.
• Although performance requirements are specified early, they are implemented later because a typical development approach is to “Make it run, make it correct, and then make it fast.”