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Module 3: Intermediate Modelling

This module introduces more advanced constructs including nested fields, conditional logic, and the use of Persona: blocks to represent perspectives, motivations, and experiences.

Learning Outcomes

By the end of this module, you will be able to:

  • Model Persona: blocks within or outside events
  • Use Conditional: logic blocks for branching
  • Add Metrics: and Meta: fields
  • Structure more complex event flows

Scenario 1: Persona within an Event

Model a login journey that includes a persona who expresses a reaction after successful login.

EBNF-Version: 1.1
Syntax-Version: 1.0
Journey-Title: Logged-In Persona Feedback

Event: Login Success
  Step: Login attempt
    User: Returning User
    Action: Enters correct credentials
    UI-Element: Login Form

  Persona: Returning User
    Experience: Feels confident after successful login
    Metrics: { confidence=high }

Scenario 2: Conditional Logic

Create an event with a conditional outcome:
- User submits form
- IF required fields are empty, show error
- ELSE submit the form

Event: Form Submission
  Step: Submit details
    User: Guest
    Action: Clicks submit button
    UI-Element: Registration Form
    Conditional:
      IF: Required fields are empty
      THEN: Show error message
      ELSE: Proceed with submission

Scenario 3: Adding Metadata

Use `Meta:` and `Tag:` fields to annotate steps for clarity.

Event: Newsletter Signup
  Step: Fill email field
    User: Visitor
    Action: Enters email address
    UI-Element: Signup Form
    Meta: { source="homepage" }
    Tag: [conversion, email]

Best Practices

  • Use personas to reflect internal states, feedback, or goals
  • Apply Metrics: to quantify subjective experiences
  • Reserve Conditional: blocks for simple branching logic (do not nest them recursively)

Next: Module 4: Advanced Personas, where we explore external personas and cross-referenced experiences.