Requirements analysis

As explained in Functional Design and Architecture: Examples in Haskell

Requirement analysis is the process of eliciting, examining, and specifying the capabilities and constraints a software system must satisfy.

Requirements analysis starts by understanding the domain: collect problems, facts, and notions from documentation and conversations with engineers before deciding what to create. section 2.1.3

A top-down process translates domain requirements into architecture, then implementation details. Treating this sequence as rigid waterfall is risky because missed requirements surface later; iterative models allow earlier phases to be revisited. section 2.1.3

Use mind maps to turn unordered brainstorming into a focused, navigable domain description:

• Start with major topics and expand them into increasingly detailed maps. section 2.1.5
• Keep important terms and relationships visible without imposing the rigidity of user stories or use-case diagrams. section 2.1.5

Figure 2.10 Level 1 mind map

A level-one Minecraft mind map provides a concrete starting point for organizing a domain before architecture design. section 2.1.5

How Functional Design and Architecture: Examples in Haskell covers it

How deep it goes

Moves from documentation and conversations to focused mind maps, then stops before architecture design and code implementation.

Examples

Uses a Minecraft brainstorming exercise expanded into level-one, level-two, and level-three mind maps.

What it assumes

Uses documentation and conversations with engineers as inputs while teaching domain understanding before architecture.

What you can do after

Evaluate/understand a domain by collecting its problems, facts, notions, and important terms before constructing architecture.

How it connects

Connects domain understanding with software design, architecture, brainstorming, mind maps, and iterative development.

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Also explained in

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  Delivering Machine Learning Projects: From design to deploymentRequirements analysis is the systematic process of eliciting, clarifying, assessing, and specifying what a system must provide and under what constraints.
• 

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  Everyday Data VisualizationRequirements gathering is the process of documenting what a project should build, why it should build it, and whether stakeholders confirm those requirements.

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Related concepts

• database designpart of · Database design is the process of defining a database’s structures, relationships, constraints, and organization to meet data requirements.
• waterfall methodologypart of · Waterfall methodology is a software development approach that organizes work into predominantly linear, sequential phases, with limited iteration between them.
• behavior-driven developmentused by · Behavior-driven development is a collaborative software practice that specifies and validates expected behavior through human-readable examples meaningful to technical and nontechnical stakeholders.
• interviewhas part · An interview is a structured or semi-structured conversation in which questions elicit information about a participant’s experiences, views, needs, qualifications, or requirements.

This explainer was generated by Manning's knowledge graph from the text of Functional Design and Architecture: Examples in Haskell. The section links point to the parts of the book it draws on.