To promote the development of inherently secure software, this chapter describes various strategies and techniques for integrating security requirements into the systems development life cycle (SDLC). For each major phase of the SDLC, recommendations are made to promote the development of secure information systems. In brief, developers should identify risks, document initial requirements early, and stress the importance of security during each phase of the SDLC. Security concerns are then offered for less traditional models of systems analysis and development. Before concluding, future trends are discussed. Practitioners who read this chapter will be better equipped to improve their methodological processes by addressing security requirements in their development efforts.