Software testing can be classified as static and dynamic approaches.
Static testing is a process in which software products are verified by hand or through the use of different software tools. It begins early in the development life cycle and is performed during the verification procedure. In this testing method, a program is tested without being executed that is why there is no need to use a computer for such examination. For example, the checks are inspection, code analysis / review, walkthrough.
Static testing involves working with:
- Documentation (requirements, test cases, description of application architecture, database schemes, etc.)
- Graphical prototypes (GUI designs)
- Program code (programmers themselves can often do the code review)
- Application runtime environment settings
- Prepared test data
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Static testing may be used for both finding defects early in SDLC and verifying the source code through analysis of frameworks used, algorithms, relationship between modules and components of the program and so on. Static testing allows to determine whether the app is secure, reliable, functional, user-friendly, etc.
Dynamic testing is run to validate a software application by executing it. One cannot avoid using a computer for this testing. The technique allows to examine functionality of the system, cpu / memory usage and the overall performance of a software system.
Dynamic testing is designed to check code of the entire software program (system testing) and interfaces between individual components, interactions to various parts of the system (integration testing), integration of separate software modules ( module or component testing) and even a part of the code. The main goal of this testing is to check actual behavior of the application or its single unit to make sure that it works in compliance with business requirements.
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Dynamic testing is divided into numerous types, and each depends on:
- Access to the code (black box, white box and grey box testing methods)
- Application test coverage
- Environment the application is working in (functional, load, security testing types)
In many cases, the word “testing” has to do just with dynamic testing method.
QA lab is used to carry out various testing processes and other procedures and policies relating to quality assurance / quality control so as to provide accurate and precise analytical results. Thus, verification /validation of your app using both dynamic and static testing approaches can be outsourced to the specialists working for the laboratory.