Test Case Design and Testing Techniques Of Implementation- Factors to Consider
By: Md Sakib Al Mahmud
Tags: Quality Assurance, Software Testing

Test Case Design and Testing Techniques

Software testing is a basic and significant technique for evaluating the quality of specific software products and services. In software testing, exploratory testing plays an unavoidable and a vital job. A strategic plan and execution help to improve the overall software testing experiences.

Software testing is the way toward breaking down a product and knows about what’s required and what’s not required (as of bugs). Testing helps to validate the system is bug-free and it features, functionality is behaving as expected.

We tried to explain test case design, test analysis, quality risk, testing techniques and phases of test development. We covered some checklist to ensure proper testing techniques of implementation.

Test Case Design & Testing Techniques

Test designing is an art and making some effective and useful decisions for testing. That is important to create a test plan, write some test cases and set some cycle what to be covered with testing and what not be covered with testing.

These parameters make a big difference to understand the requirement and execution which will later provide tremendous results.

Test Analysis

Just after the testing planning, it requires doing test analysis and design in software testing. Requires to involve with test-basis, which consists of “requirements, test plan, code repository, business requirements”.

These documents will help in testing when planning to perform test analysis. Once the test-basis review, evaluate the testability objects, identify and prioritize test conditions, test requirements, required test data, test items. Once the test condition is certain, set the high-level test cases as a priority for initialization.

Phases of Test Development

Test development as followed:

Quality Risk Analysis: In this phase, all the risks should be considered and identify all the risks of the system through risk analysis. We may follow information risk analysis techniques, such as functionality, data quality, error handling, performance, recovery plan, localization, usability for example. All the risk should be considered and high-level and low-level test design is required for execution.

High-Level Test Design: Requires to design test suites with the consistences of high-level test design and cover all the risk factors within it. In a broader sense, system functionality should be covered and avoid nitty-gritty of the scenario or in-depth functionality

Low-Level Test Design: Requires as much as detailed scenario and handle the nitty-gritty of the features and functionality. Specific, refined and simple written test cases with detailed steps to follow.

Types of Test Design Techniques

Specification-based Technique: In order to know the system behaves and trace bugs of the system, it requires creating tests, analysis of the test basis. It’s a black-box technique that used to be an equivalence partitioning technique.

Structure-based Technique: The key concept of this structure-based technique is, code coverage, statement, decision coverage and control flow of test design techniques. Based on code analysis, test execution is required to determine how the system works inside, achieve a high level of control flow, data analysis, classes, call flows.

Structure-Based Technique

Experience-based Technique: A dynamic approach for test execution which considers the tester’s skill, expertise, experience. In such techniques, tests are often created during test execution. For example, bug hunting, breaking application based on a checklist, error guessing, exploratory testing. More experience-based testing helps to move along with different scenario execution on different applications.

Test Case Design Checklist

To get maximum software quality throughout the project journey requires test cases and keep covering possible scenario and tracking their coverages as necessary. An iterative process can be followed to keep riching the checklist of test cases and later on different cycles can be applied to increase the test coverage.

Final Verdict

A well-organized test design is crucial to get the proper test results. If the planning goes wrong in test design, unexpected, improper test execution may lead to different results. In the consequence of, with error — the release may take place.

To prevent such avoidable failure, different types of design techniques, based on application type — a different set of techniques can be applied and may bring benefits. The decision required to be made by assessing the patterns of application.

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