Evaluating the performance and scalability of Web application systems

In recent years, the Internet and World Wide Web have grown rapidly and become an important medium of software applications. Quality issues concerning Web application systems (WAS) are attracting growing attention and becoming an important research area for Web engineering, On the basis of analysis of existing evaluation approaches for WAS, this paper presents a quantitative evaluation model for the performance and scalability of WAS. An example is given of the quantitative evaluation model application, in which a testing process is addressed and a testing result is correctly verified, the indications for enhancing the system performance and scalability are discussed as well.