| Software Requirements Specification - | (Software Engineering) a deliverable that describes all data, functional and behavioral requirements, all constraints, and all validation requirements for software |
| Software safety - | (Software Engineering) an SQA activity that focuses on the identification and assessment of potential hazard that may have a negative impact on the operation of software |
| Software testing - | (Software Engineering) a set of activities conducted with the intent of finding errors in software |
| Spiral model - | (Software Engineering) an evolutionary software engineering paradigm |
| Stakeholders - | (Software Engineering) any person of group that has a stake in the successful completion of a software project |
| State transition diagram (STD) - | (Software Engineering) a notation for behavioral modeling |
| Statistical quality assurance - | (Software Engineering) techniques for process improvement that are based on measurements of the product and the process |
| Stepwise refinement - | (Software Engineering) a technique for accomplishing functional decomposition or procedural design (also called partitioning) |
| Stress testing - | (Software Engineering) a testing task that determines how software responds when it is forced to meet or exceed operational limits |
| Structured programming - | (Software Engineering) a design method that limited design constructs to only three basic forms and constrains program flow for better quality |