Explore the distinctions among concepts like Test Plan, Test Strategy, Test Case, Test Script, Test Scenario and Test Condition featuring examples:
The practice of Software Testing involves numerous essential concepts that every software tester should be well-versed with.
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This write-up intends to delve into these concepts and illustrate a comparison among them.
We focus on the differences between Test Plan and Test Strategy, Test Case and Test Script, Test Scenario versus Test Condition, and Test Procedure contrasting with Test Suite are explained thoroughly for ease in comprehension.
To access an in-depth tutorial series on Test Plan, click here.
The above question, posed by Sasi C., is a frequent topic of discussion among attendees of our Software Testing tutorials. Often, I explain that with repeated exposure, we become accustomed to these terms as they naturally become part of our daily speak.
Yet, the terminology can still spur confusion. Here, in this article, I will endeavour to elucidate a few frequently utilised terms.
Several Software Testing Concepts
Enumerated below are definitions of several Software Testing concepts, alongside their comparisons:
Contrasting Test Plan and Test Strategy
Test Plan
A Test Plan is a document outlining the range, aim, and methodology intended for testing a software application. It itemises all actions within a QA project, such as schedules, project scope, roles, responsibilities, potential risks, establishment and fulfillment criteria, test targets, and so forth.
Test Plans could be amended based on many factors such as alterations in requirements or switching of a test engineer. Test Plans are curated based on project specifications.
Test Strategy
A Test Strategy elucidates the testing methodology and accompanying details. It is a part of the Test Plan and is a more generic and fixed document. It involves factors like the testing technique to be employed and the modules to be tested.
Contrast Between Test Plan and Test Strategy
| Test Plan | Test Strategy |
|---|---|
| Formulated from Software Requirement Specification (SRS) | Formulated from Business Requirement Document (BRS) |
| Composed by test lead or manager | Composed by the project manager or business analyst |
| Incorporates test plan ID, features to scrutinise, test methods, testing tasks, success/failure criteria, deliverables, responsibilities, and schedule | Incorporates objectives, scope, document formats, test processes, structure of the team reporting, strategy of client communication |
| Can be revised in response to alterations in requisites | A static document that upholds standards |
| Can be prepared individually | Often forms a section within a test plan for smaller ventures |
| Suitable to prepare at the project level | Can be utilised across numerous projects |
| Details how, when, who, and what to test | Details test techniques and the modules under scrutiny |
| Details specifications | Details broad strategies |
| May vary during the project lifecycle | Typically remains unaltered once approved |
| Drafted post requirement sign-off | Prepared prior to the test plan |
| Can exhibit various forms (e.g., master test plan, system test plan, performance test plan) | One test strategy document per project |
| Should be precisely articulated | Provides overall guidelines |
Test Case vs. Test Script – The Difference
In my perspective, these terms are interchangeable. A test case and a test script are essentially sequences of steps designed to examine a software application. Some might argue that a test case corresponds to manual testing while test script relates to automated testing. However, the difference between the two isn’t significantly distinct.
Examples:
Test Case: Check whether the login button is visible
Test Script: Press the login button
Contrasting Test Scenario with Test Condition
Test Scenario: A test scenario lays out all viable ways to scrutinise a software application. It comprises a single statement encompassing all test possibilities.
Test Condition: A test condition delineates the guidelines to be adhered to while testing an application. It represents a fixed rule to be observed during testing.
Difference Between Test Procedure and Test Suite
Test Procedure: A test procedure amalgamates test cases based on a specific logical rationale such as an end-to-end situation. The sequence of executing test cases is set.
Test Suite: A test suite collates test cases executed as part of a test cycle or regression. There’s no particular logical grouping and the execution order can fluctuate.
Comprehension of these concepts and understanding their stark differences are imperative for efficient software testing. Acquaintance with these terms will augment your testing acumen and catalyse communication within the testing fraternity.
We trust this write-up has facilitated clarity in these concepts. We anticipate your feedback, queries, and participation in ensuing discussions in the comments space.
Enjoy Reading!