Difference between SDLC and STLC
|
Aspect |
SDLC | STLC |
|---|---|---|
|
Domain |
SDLC is mainly related to software development. | STLC is mainly related to software testing. |
|
Focus |
Besides development other phases like testing is also included. | It focuses only on testing the software. |
|
Phases |
SDLC involves total six phases or steps. | STLC involves only five phases or steps. |
|
Number of Member |
In SDLC, more number of members (developers) are required for the whole process. | In STLC, less number of members (testers) are needed. |
|
Team Involved |
In SDLC, development team makes the plans and designs based on the requirements. | In STLC, testing team(Test Lead or Test Architect) makes the plans and designs. |
|
Objective |
Goal of SDLC is to complete successful development of software. | Goal of STLC is to complete successful testing of software. |
|
End Result |
It helps in developing good quality software. | It helps in making the software defects free. |
|
Execution |
SDLC phases are completed before the STLC phases. | STLC phases are performed after SDLC phases. |
|
Maintenance |
Post deployment support , enhancement , and update are to be included if necessary. | Regression tests are run by QA team to check deployed maintenance code and maintains test cases and automated scripts. |
|
End Result |
Creation of reusable software systems is the end result of SDLC. | A tested software system is the end result of STLC. |
Difference between SDLC and STLC
Software Development Life Cycle (SDLC) and Software Testing Life Cycle (STLC) are important parts of software engineering. SDLC has a broad scope; it consists of 6 phases: requirement analysis, design, development, testing, deployment, and maintenance. On the other hand, STLC is a subset of SDLC. It has Focused scope, specially focus on the testing phase of SDLC. The Primary Goal of STLC is to ensure the quality, functionality and reliability of software through various testing activities.