Security metrics to improve misuse case model

Assessing security at an early stage of the web application development life cycle helps to design a secure system that can withstand malicious attacks. Measuring security at the requirement stage of the system development life cycle assists in mitigating vulnerabilities and increasing the security of the developed system, which reduces cost and rework. In this paper, we present a security metrics model based on the Goal Question Metric approach, focusing on the design of the misuse case model. The security metrics model assists in examining the misuse case model to discover and fix defects and vulnerabilities before moving to the next stages of system development. The presented security metrics are based on the OWASP top 10-2010, in addition to misuse case modelling antipattern.