A Modified & Extended Security Quality for Requirements Engineering (SQUARE) Methodology into Standard Life-Cycle models

SQUARE (Security Quality for Requirements Engineering) is method for eliciting, categorizing and prioritizing security requirements in software development projects. SQUARE [1] provides security for the lifecycle models in the requirements phase that generates a final deliverable of categorized and prioritized security requirements. This paper analyzes the performance of SQUARE methodology with various applications (web applications) which provides more security. A detailed evaluation of all the nine steps along with subsequent reassessment and refinement is carried. The paper also examines the four major steps of SQUARE namely Risk assessment, Elicitation techniques[3], Categorization and Prioritization are reviewed with major characteristics. The above four steps are analyzed against application development. And finally modifications and the observations that are extended into complex application development are discussed.