Software Testing and Quality Assurance

By conducting Software testing, it is possible to measure the quality of software in terms of defects found, for both functional testing and non-functional software requirements and characteristics (e.g. reliability, usability,efficiency and maintainability).

Testing can give confidence in the quality of the software if it finds few or no defects. A properly designed test that passes reduces the overall level of risk in a system. When testing does find defects,the quality of the software system increases when those defects are fixed.To conduct various types of testing Lessons should be learned from previous projects.

By understanding the root causes of defects found in other projects, processes can be improved, which in turn should prevent those defects reoccurring and, as a consequence, improve the quality of future systems.Testing should be integrated as one of the quality assurance activities like alongside development standards, training and defect analysis.

Learn more about: What is Software Testing? Ultimate Guide for Beginners

Software Testing Process

The most visible part of testing is executing tests. But to be effective and efficient, test plans should also include time to be spent on planning the tests, designing test cases, preparing for execution and evaluating status.

The fundamental test process consists of the following main activities:

 - planning and control
 - analysis and design
 - implementation and execution
 - evaluating exit criteria and reporting
 - test closure activities

Although logically sequential, the activities in the process may overlap or take place concurrently.
Software Test plan and control

Test planning has the following major tasks:

 - Determining the scope and risks, and identifying the objectives of testing.
 - Determining the test approach (techniques, test items, coverage, identifying and interfacing the teams involved in testing, testware).
 - Determining the required test resources (e.g. people, test environment, PCs).
 - Implementing the test policy and/or the test strategy.
 - Scheduling test analysis and design tasks.
 - Scheduling test implementation, execution and evaluation.
 - Determining the exit criteria.

Test control has the following major tasks:

 - measuring and analyzing results;
 - monitoring and documenting progress, test coverage and exit criteria;
 - initiation of corrective actions;
 - making decisions.

Conclusion :

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Zeppelin

Indium Software - Software testing Services Company |Top Software testing companies 

Software Requirement Quality Criteria

Requirements for an application or a new feature are very important in terms of Quality Assurance. But since the requirements can not always be documented, the main criteria for the quality of the requirement is the fact of the presence of these software requirements. The requirements themselves must satisfy the quality criteria, which we will describe below.

There are nine criteria for the quality of requirements:

Correctness

It happens that the requirements make mistakes when compiling those. This can be detected by analyzing the requirements as a whole, finding another place where there is a discrepancy with the previous value, for example, an incorrect interest rate for a loan in a banking application, but if this place is unique, then such a inaccuracy can be recognized by the tester and only the user or the one who details introduced to the course of data accuracy, can recognize and correct it.

Read more about: Independent software testing services

Unambiguity

The accuracy of the wording in the requirements can be interpreted in different ways by testers, developers and other project participants. The problem arises because the requirements are written in “natural language” and different team members belonging to different groups are so used to their interpretation of words or phrases that it is already difficult for them to imagine that this for someone else has a completely different meaning.

Completeness

Often in requirements they forget to describe validations on fields or units of measure in which values ​​or even whole sections will be displayed that can be skipped by carelessness.

Consistency

Conflicts in the description of the same functional in different parts of the requirements are often found through mechanical analysis. One part of the requirements may say that for some action you need to perform something, while in the other part of the requirements you can find that the same functionality should perform something else.

Sort by importance and stability

In good requirements, you can see how the customer, customers or other interested parties have ordered the requirements according to their importance and stability. For this, an attribute can be assigned to each requirement. The most useful ones are sequencing in terms of cost, risk and complexity.

Verifiability

Requirements should be made in such a way that testers literally draw test cases from there, for each good point from the requirements, you can usually write several test cases that will cover this point of requirements.

Modifiability

Requirements should be well organized and have cross-references, breakdown. In large systems, applications, requirements can be supported by an automated tool and are easily modifiable.

Comprehensibility

The requirements should be such that they could be understood by both the developer, the tester and the user if he took this document into his own hands. For this, a description of the terms used as well as illustrations and storyboards are used.