Abstract: Nonfunctional features of distributed component systems usually supported by the crosscutting concerns provided by the middleware nowadays. Although this separation of concerns helps make the system design easy, it enlarges the difficulties of performance prediction at design time. This paper proposed a performance prediction method of distributed component-based systems through aspect templates. This method will automatically weave reusable aspect templates and build a complete performance model based on performance factors of middleware. The results of the model can help designers to find the defects of their designs or make a good choice among different alternative solutions.

Key words: Performance prediction,Middleware,Aspect oriented,Template