BA Modeling Sub-Skill

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

---

Context Discovery

Auto-Investigation

Signal	Check For	Why
.md files with scenarios	Use case patterns (Actor, Precondition, Main Flow)	Use case modeling in use
*.bpmn or process diagrams	BPMN process models	Process analysis present
user-stories/ or backlog	User story format	Agile modeling approach
Database schema files	ERD or data models	Data modeling needed
acceptance-criteria/	Given-When-Then format	BDD approach

Discovery Questions

questions:
  - question: "What type of system are you modeling?"
    options:
      - label: "Business processes"
        description: "Use business-process-analysis (BPMN)"
      - label: "User interactions"
        description: "Use use-case-modeling or user-story-mapping"
      - label: "Data structures"
        description: "Use data-analysis (ERD)"
      - label: "Complex logic/rules"
        description: "Use decision-analysis"

  - question: "What's your development methodology?"
    options:
      - label: "Agile/iterative"
        description: "Favor user-story-mapping, acceptance-criteria"
      - label: "Waterfall/formal"
        description: "Favor use-case-modeling, detailed docs"

  - question: "Are you defining system interfaces/APIs?"
    options:
      - label: "Yes, integration requirements"
        description: "Use interface-analysis"
      - label: "No, internal logic only"
        description: "Skip interface analysis"

---

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

---

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

---

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

---

BA Modeling Sub-Skill v1.0