Requirements Modeling

Create state, sequence, activity, and class diagrams with Mermaid or PlantUML.

Updated Feb 9, 2026
One-click install
npx skills add https://github.com/Danhvb/my-ba-skills --skill requirements-modeling
Or copy as Structured Prompt for Agent
Please help me install this Agent Skill.
Skill: Requirements Modeling
Source: https://github.com/Danhvb/my-ba-skills/tree/main/multi-agent-ba/.agent/skills/senior-ba/requirements-modeling
Command: npx skills add https://github.com/Danhvb/my-ba-skills --skill requirements-modeling

SYSTEM DOCUMENTATION & REQUIREMENTS

What problem does it solve?

Visualize and analyze requirements to reduce ambiguity and align stakeholders by transforming textual needs into clear visual models.

Core Features & Use Cases

  • State Diagram modeling for object lifecycles and transitions.
  • Sequence Diagram modeling for interactions over time.
  • Activity Diagram for workflow and processes, including parallelism.
  • Class Diagram for data relationships and OO concepts.
  • Guidance on mapping requirements to diagrams and annotating decisions.

Quick Start

Create a concise set of visual models (state, sequence, and class diagrams) that represent the current requirements.

Frequently Asked Questions about Requirements Modeling

High-intent search queries and answers about installing and using this skill.

FAQPage Schema
How do I visualize requirements to reduce ambiguity for stakeholder reviews?

Visualizing requirements with models reduces ambiguity by transforming textual needs into clear diagrams. This process aligns stakeholders by mapping complex logic, workflows, and data relationships into visual formats.

Can I generate Mermaid sequence diagrams for system design interactions?

Yes, you can generate Mermaid sequence diagrams for system design interactions. This approach models interactions over time, clarifying complex communication flows between system components using Mermaid or PlantUML-ready representations.

What is the best way to model object lifecycles and state transitions using UML?

The best way to model object lifecycles and state transitions is using state diagrams. This visual modeling technique clarifies requirements by mapping how objects change states, ensuring stakeholders understand dynamic system behavior.

How to map requirements to class diagrams for data relationships and workflows?

Mapping requirements to class diagrams clarifies data relationships and object-oriented concepts. By transforming textual workflows into activity diagrams and decision tables, you visualize parallel processes and annotate decisions for stakeholder alignment.

Does this requirements modeling approach work with PlantUML-ready representations?

Yes, this requirements modeling approach works with PlantUML-ready representations. It supports creating state, sequence, activity, and class diagrams to clarify complex logic using either Mermaid or PlantUML syntax for stakeholder reviews.

When do I need decision tables for requirements engineering and system design?

You need decision tables for requirements engineering when complex logic and conditions require clear visualization. They annotate decisions within activity diagrams, reducing ambiguity and aligning stakeholders on workflow outcomes.