Functional and Non-Functional Requirements

We can breakdown a requirement into two principal types like Functional and Non-functional requirements.

For all the technology projects, functional and non-functional requirements must be segregated and separately analyzed.

To define the proper tool and an appropriate technique might be a daunting challenge. Whether you are doing a brand-new application or making change to an existing application. Considering the right technique for the functional process is an art by itself.

An overview of the widely-used business analysis techniques which are currently in the market −

ProcessesTechniquesProcess Deliverables (Outcomes)
To Determine Functional and Non-Functional Requirements●      JAD Sessions●      Scenarios and Use-cases●      Organizational Modeling●      Scope Modeling●      Functional Decomposition●      Interviews●      Observation (Job Shadowing)●      Focus Groups●      Acceptance and Evaluation●      Sequence Diagrams●      User Stories●      Brainstorming●      Storyboarding●      Prototyping●      Structured Walk-through●      Event Analysis●      Business Rule analysis●      Requirements Workshops●      Risk Analysis●      Root Cause AnalysisBusiness Requirements Documents −●      Business and Functional Requirements●      Non-Functional Requirements●      Business Rules●      Requirements Traceability MatrixCommon Template −●      Business Requirements Document

Applicability of Tools and Process

Although there are a variety of tools and procedures available to business analysts, it all depends upon the current practices of the organization and how they would like to use it.

For example, root-cause analysis is used when there is a requirement to go deeper into a certain important area or function.

However, business requirements document is the most popular and accepted way to put the requirements in documentation format.

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