Kpis for web applications, you can't manage what you can't measure
- User Satisfaction/Apdex Score
- averages suck but people like it
- Error Rate HTTP Error % – Number of web requests that ended in an error. Logged Exceptions – Number of unhandled and logged errors from your application. Thrown Exceptions – Number of all exceptions that have been thrown.
- scale matrix (instanses)
- request rate, number of concurrent users
- server,application cpu
- Application Availability
- GC
Seven Attributes for Quality Software
- Portability: is about creating a software product that is easily moved to another platform.
- Reliability: is about a software product that does what is’s supposed to do, dependably.
- Efficiency: is about software product that economizes on both running and space consumption.
- Usability: is about a software product that is easy and comfortable to use.
- Testability: is about a software product that is easy to test.
- Understandability: is about a software product that is easy for maintainer to comprehend.
- Modifiability: is about a software product that is easy for a maintainer to change.