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TestLink Tutorial

Different Types of Software Requirements

Overview

A requirement is a statement that specifies what is expected from the product or the application by the user. We can use TestLink to manage different types of Requirements. Let’s have a look at different types of Software Requirements in this tutorial.

Classification

Requirements can be broadly classified into:

  • Business Requirements
  • User Requirements
  • System Requirements
  • Functional Requirements
  • Non Functional Requirements

Business Requirements

Business requirements are high level ideas or statements of the product by the inventor, project sponsor, project stakeholders etc.

User Requirements

As the name suggests these are User centric. User requirements are the requirements specified by the users of the product from their perspective. Users can be the product stakeholders like customers, end-users, business users, investors ,staff members etc. User requirements are non technical, broad, narrative text statements, wish list, etc . In Agile methodology user requirements are documented as user stories.

System Requirements

As the name suggests these are System centric. System requirements are detailed requirements of what the system should do. These are documented by system architects, domain experts, project managers, technical architects etc. The team will consider the user requirements as input for documenting the system requirements. These requirements are designed from the implementation and design of the product perspective.

Functional Requirements

Functional requirements are related to the core functionality of the product. Functional requirements specify what is expected from the product by the user. Use cases and Use-case Diagrams are used to document the system behavior and expectations.

Non-Functional Requirements

Non functional requirements are not related to the functionality of the product. These requirements are related to usability, look and feel, security , reliability, performance of the product etc. For example, Page load time of the webpage in the product environment.

Requirements should be clear, complete , unambiguous etc for good design and development of the product.

Requirements Management in TestLink

We can enable the Requirements management module for a Project in TestLink. Check the Requirements checkbox when creating a Project in TestLink.

 

Requirements Module TestLink

If the project follows Waterfall model, requirements are gathered in the Requirements gathering phase of the SDLC from the stakeholders. There are several techniques to gather requirements.

 

TestLink Tutorial on this website:

https://www.testingdocs.com/testlink-tutorials/

More information on TestLink, official website:

https://testlink.org/

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