process-modeling

# Process Modeling

## When to Use This Skill

Use this skill when:

- **Process Modeling tasks** - Working on process modeling using bpmn notation and flowchart patterns. creates process diagrams with activities, gateways, events, swimlanes, and decision points for workflow documentation
- **Planning or design** - Need guidance on Process Modeling approaches
- **Best practices** - Want to follow established patterns and standards

## Overview

Create and document business processes using BPMN (Business Process Model and Notation) and flowchart notation. Visualize activities, decisions, events, and participant interactions for process understanding and improvement.

## What is Process Modeling?

**Process modeling** creates visual representations of how work flows through an organization. It documents:

- **Activities**: What work is performed
- **Sequence**: Order of activities
- **Decisions**: Choice points and conditions
- **Participants**: Who performs each step
- **Events**: What triggers and ends the process

## BPMN Core Elements

### Activities (Rectangles)

| Type | Symbol | Description |
|------|--------|-------------|
| **Task** | Rectangle | Atomic work unit |
| **Sub-Process** | Rectangle with + | Contains child process |
| **Call Activity** | Rectangle with thick border | Invokes reusable process |

**Task Types:**

| Type | Description |
|------|-------------|
| User Task | Human interaction required |
| Service Task | Automated system action |
| Script Task | Script/code execution |
| Business Rule Task | Decision table evaluation |
| Send Task | Message sent |
| Receive Task | Message received |
| Manual Task | Physical work without system |

### Events (Circles)

| Position | Symbol | Description |
|----------|--------|-------------|
| **Start** | Thin circle | Process trigger |
| **Intermediate** | Double circle | Mid-process event |
| **End** | Thick circle | Process termination |

**Event Types:**

| Type | Trigger |
|------|---------|
| None |