majiayu000 Writing Functional Documentation
Functional documentation explains concepts, guides users through workflows, and helps them understand "why" and "how" things work. This differs from API reference, which documents "what" each endpoint does.
Document Types
| Type | Purpose | Key Sections |
|---|---|---|
| Conceptual | Explains core concepts and how things work | Definition → Key characteristics → How it works → Related concepts |
| Getting Started | First task with the product | Intro → Prerequisites → Numbered steps → Next steps |
| How-To | Task-focused for specific goals | Context → Before you begin → Steps → Verification → Troubleshooting |
| Best Practices | Optimal usage patterns | Intro → Practice sections (Mistake/Best practice) → Summary |
Writing Patterns
Lead with Value
Start every document with what the reader will learn or accomplish.
✅ This guide shows you how to create your first transaction in under 5 minutes.
❌ In this document, we will discuss the various aspects of transaction creation.
Use Second Person
Address the reader directly.
✅ You can create as many accounts as your structure demands.
❌ Users can create as many accounts as their structure demands.
Present Tense
Use for current behavior.
✅ Midaz uses a microservices architecture.
❌ Midaz will use a microservices architecture.
Action-Oriented Headings
Indicate what the section covers or what users will do.
✅ Creating your first account
❌ Account creation process overview
Short Paragraphs
2-3 sentences maximum. Use bullets for lists.
Visual Elements
| Element | Usage |
|---|---|
| Info box | > **Tip:** Helpful additional context |
| Warning box | > **Warning:** Important caution |
| Code examples | Always include working examples for technical concepts |
| Tables | For comparing options or structured data |
Section Dividers
Use --- to separate major sections. Improves scannability.
Linking Patterns
- Internal links: Link concepts when first mentioned: "Each Account is linked to a single Asset"
- API reference links: Connect to API docs: "Manage via API or Console"
- Next steps: End guides with clear next steps
Quality Checklist
- Leads with clear value statement
- Uses second person ("you")
- Uses present tense
- Headings are action-oriented (sentence case)
- Paragraphs are short (2-3 sentences)
- Includes working code examples
- Links to related documentation
- Ends with next steps
- Follows voice and tone guidelines