Model for Testing in software testing methodologies

• The image shows a model of testing process
• It includes three models: A model of the environment, a model of the program and a model of the expected bugs

Tests

• Tests are formal procedures where

Inputs must be prepared

Outcomes should be pre directed

Tests should be documented
Commands need to be executed
Results are to observed

• All these errors are subjected to error
• A typical software system goes through with  following three test

Unit/Component Testing

• A unit is the smallest testable piece of software that can be compiled, assembled, linked, loaded etc
• A unit is usually the work of one programmer and consists of several hundred or fewer lines of code
• Unit Testing is the testing we do to show that the unit does not satisfy its functional specification, or that its implementation structure does not match the intended design structure
• A component is an integrated aggregate of one or more units
• Component Testing is the testing we do to show that the component does not satisfy its functional specification or that its implementation structure does not match the intended design structure
• Unit testing aims at testing each of the components that a system are built upon. As long as each of them work as they are defined to , then the system as a whole has a better chance of working together

Integration testing

• Integration is the process by which components are aggregated to created larger components
• Integration testing is testing done to show that even through the components were individually satisfactory (after passing componet testing)
• It checks if the combination of components are incorrect or inconsistent
• It verifying software quality by testing two or more depedent software modules as a group

System Testing

• A system is a big component
• System Testing is aimed at revealing bugs that cannot be attributed to components
• It includes testing for performance, security, accountability, configuration sensitivity, startup and recovery
• System testing enables us to test, verify and validate both the business requirements as well as the applications architecture

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About Data Sciences by Venu

Hi, My name is Venugopala Chary and I'm Currently working as Associate Professor in Reputed Engineerng College, Hyderabad. I have B.Tech and M.tech in regular from JNTU Hyderabad. I have 11 Years of Teaching Experience for both B.Tech and M.Tech Courses.