---
type: "term"
title: "Secure Software Development Life Cycle (SSDLC)"
description: "A structured approach to embedding security throughout the software development process."
resource: "tlctc:term:secure-software-development-life-cycle-ssdlc"
tags:
  - "glossary"
---
# Secure Software Development Life Cycle (SSDLC)

A structured approach to embedding security throughout the software development process. The TLCTC framework integrates into each SSDLC phase, with programmer-level decisions during Requirements and Design, coder-level implementation during the Implementation phase, and both roles contributing to verification during Testing and ongoing vigilance during Maintenance.

**Related reading:** [Taming SonarQube with TLCTC (Secure-Dev pt 2)](https://www.tlctc.net/tlctc-sdlc-dev-blog.html), [Programmer vs Coder in TLCTC (Secure-Dev pt 1)](https://www.tlctc.net/tlctc-sdlc-prog-coder.html), [SSDLC for developers — the "S" problem](https://www.tlctc.net/tlctc-ssdlc.html), [SSDLC phase-by-phase reference — TLCTC v2.1](https://www.tlctc.net/tlctc-ssdlc-integration.html), [Adding the Developer's View to TLCTC](https://www.tlctc.net/tlctc-definitions-sdlc-prog-coder.html)