SDLC vs STLC: What’s the difference

SDLC vs STLC

So, in this article, I will be comparing Software Development Life Cycle and Software Testing Life Cycle (SDLC vs STLC). Let’s take a look at what we will be discussing in this article

What is SDLC?

Software Development Life Cycle (SDLC) aims to produce a high-quality system that meets or exceeds customer expectations, works effectively and efficiently in the current and planned information technology infrastructure, and is inexpensive to maintain and cost-effective to enhance.

What are the different phases of SDLC?

The different phases of the Software Testing Life Cycle are:

1. Requirement Phase
2. Analysis Phase
3. Design Phase
4. Development Phase
5. Testing Phase
6. Deployment & Maintenance Phase

SDLC – Complete Guide

Why SDLC?

Some of the reasons why SDLC is important in Software Development are as follows.

  • It provides visibility of a project plan to all the involved stakeholders
  • It helps us to avoid project risks
  • It allows us to track and control the project
  • It doesn’t conclude until all the requirements have been achieved

What is Software Testing Life Cycle (STLC)?

Software Testing Life Cycle (STLC) identifies what test activities to carry out and when to accomplish those test activities. Even though testing differs between organizations, there is a testing life cycle.

What are the different phases of STLC?

The different phases of the Software Testing Life Cycle are:

1. Requirement Analysis
2. Test Planning
3. Test Design
4. Test Environment Setup
5. Test Execution
6. Test Closure

STLC – Complete Guide

What is the difference between SDLC & STLC (SDLC vs STLC)?

CriterionSDLCSTLC
OriginDevelopment Life CycleTesting Life Cycle
Stands forSDLC stands for Software Development Life CycleSTLC stands for Software Testing Life Cycle
DefinitionSoftware Development Life Cycle (SDLC) aims to produce a high-quality system that meets or exceeds customer expectations, works effectively and efficiently in the current and planned information technology infrastructure, and is inexpensive to maintain and cost-effective to enhance.Software Testing Life Cycle (STLC) identifies what test activities to carry out and when to accomplish those test activities. Even though testing differs between Organizations, there is a testing life cycle.
FocusOn both development and testing processOn only testing process
RelationshipIt is taken as the predecessorIt is taken as the successor
PhasesRequirement Gathering,
Analysis,
Design,
Coding,
Testing,
Deployment & maintenance
Requirement Analysis,
Test Planning,
Test Design,
Environment Setup,
Test Execution,
Test Closure
Requirement Gathering PhaseBusiness analyst gathers the requirements and create Development PlanQA team analyses requirement documents and create System Test Plan
Design PhaseThe development team develops the high and low-level design of the software based on the requirementsTest Architect or a Test Lead usually plan the test strategy
Coding PhaseThe actual code is developed as per the designed documentThe QA team prepares the test environment
Testing PhaseActual testing is done in this phase. It includes Unit, Integration, System, Retesting & Regression testing etc.,
Also the development team involves in fixing the bugs reported
Actual testing is done in this phase. Defect reporting & retesting is done here
Deployment or Maintenance PhaseThe development team involves in support and release updatesThe QA team executes regression suites to check maintenance code deployed
When it is performedThe SDLC phases are performed before the STLC phasesThe STLC phases are performed after the SDLC phases
OutcomeA good quality software productA bug free software

FAQ’s STLC vs SDLC

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