The integration of security modeling and the UML software system based on SPE

Performance and security are two important aspects of the system development. Now we can not analysis them during the system development, but give remedy to them after the system modeling. Software performance engineering is an important aspect of the current software development, but the software´s performance has not been paid attention to during the course of the system designing. We often focus on the software development quality, while ignoring others. This paper mainly studies the concept and process of the software performance engineering, and how to integrate SPE with the UML while focusing on the system security problems. As the current software development does not involve safety issues, the system security is an important aspect of systems. the system´s security policies and mechanisms is often embedded in the software system after the software development accomplishment, this kind of nonstandard treatment result in significant hidden danger, so the paper should integrate them in the UML system.