---
name: faion-ba-modeling
user-invocable: false
description: "BA Modeling: Use cases, user stories, process models (BPMN), data models, decision tables, interfaces, acceptance criteria. 7 methodologies."
allowed-tools: Read, Write, Edit, Glob, Grep, Bash(ls:*), Task, AskUserQuestion, TodoWrite
---

# BA Modeling Sub-Skill

**Parent:** faion-business-analyst
**Focus:** Requirements analysis and design modeling techniques

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## Methodologies (7)

### Behavioral Models (2)
- use-case-modeling.md - User-system interactions, detailed flows
- user-story-mapping.md - Agile user stories, story mapping

### Process Models (1)
- business-process-analysis.md - BPMN, process flows, swimlanes

### Data Models (1)
- data-analysis.md - ERD, data requirements, data dictionary

### Decision Models (1)
- decision-analysis.md - Decision tables, business rules

### Interface Models (1)
- interface-analysis.md - System interfaces, API requirements

### Validation Models (1)
- acceptance-criteria.md - Given-When-Then, BDD, definition of done

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## When to Use

| If you need... | Methodology |
|----------------|-------------|
| Model user interactions | use-case-modeling |
| Create agile user stories | user-story-mapping |
| Map business processes | business-process-analysis |
| Define data structures | data-analysis |
| Model business rules | decision-analysis |
| Define system interfaces | interface-analysis |
| Write acceptance criteria | acceptance-criteria |

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## Modeling Technique Selection

| Context | Use |
|---------|-----|
| Detailed functional requirements | Use Case Modeling |
| Agile/iterative development | User Story Mapping |
| Process improvement | Business Process Analysis |
| Database design | Data Analysis |
| Complex business logic | Decision Analysis |
| Integration requirements | Interface Analysis |
| Test preparation | Acceptance Criteria |

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*BA Modeling Sub-Skill v1.0*