SDLC v’s STLC (Software dev / software testing lifecycles)
SDLC v’s STLC: What is the difference? Today we look at these important definitions from the world of software testing. We’ll describe each one and then point out the key differences, noting why you would use them – let’s go!
Software development lifecycle
This defines the standard phases involved during the software development process. The phases are typically carried out in the following order:
- Requirements Gathering
- Software design
- Building the Software
Each of these stages consist of deliverables plus defined entry and exit criteria.
Software testing lifecycle
This describes the testing process that takes place within the SDLC. There are typically 5 stages within the STLC, and whilst there are different definitions for them, a generic software testing lifecycle looks like this:
- Requirement Analysis
- Test Planning
- Test Development
- Environment Setup
- Execution & Closure.
Each of the stages is purely based upon testing and error detection, not development.
- SDLC defines the phases involved during the software development process, whereas STLC defines the activities deployed to then improve the quality of the product.
- SDLC is a development life cycle.
- STLC is a testing life cycle and STLC phases purely cover software testing.
- The aim of an SDLC then is to produce a high-quality software system that will meet up to customer expectations.
- Each stage is typically documented and then reviewed upon completion, thus ensuring optimum management control.
- SDLC enables you to trace system requirements back to the previously stated business requirements.
- STLC enables you to make the testing process more consistent and effective.
- You can track deliverables and timings for every step of the project
- Each project module is tested thoroughly, with requirements measured against actual results.
Hopefully you will now be able to engage in SDLC v’s STLC conversations! If you still want more, you can follow us on LinkedIn and Twitter. If you would like to discuss your software testing requirements, contact us and we’ll be glad to help.