Architecture Patterns

Comprehensive architecture and design patterns for building scalable applications with the Context-Action framework, centered on Setup-First Architecture that prioritizes proper configuration and initialization.

Prerequisites

Before implementing any architecture pattern, ensure proper setup configuration:

• Multi-Context Setup Guide - Complete setup patterns for complex architectures including MVVM, Domain Context, and Enterprise configurations
• Basic Action Setup - Foundation action context setup for all patterns
• Basic Store Setup - Foundation store context setup for all patterns
• Provider Composition Setup - Advanced provider organization patterns

Available Architecture Patterns

MVVM Architecture

• MVVM Pattern - Model-View-ViewModel architecture with perfect layer separation
  • Setup Guide: MVVM Architecture Setup
  • Model Layer: Type-safe state management with Store Only Pattern
  • ViewModel Layer: Business logic with Action Only Pattern
  • Performance Layer: Direct DOM manipulation with RefContext Pattern
  • View Layer: Pure React components for presentation

Domain Context Architecture

• Domain Context Pattern - Document-centric domain separation for multi-domain apps
  • Setup Guide: Domain Context Architecture Setup
  • Business Context: Core business logic and domain rules
  • UI Context: Screen state and user interactions
  • Validation Context: Data validation and error handling
  • Design Context: Theme management and visual states
  • Architecture Context: System configuration and technical decisions

Pattern Composition

• Composition Strategies - Advanced pattern composition for complex applications
  • Setup Guide: Provider Composition Patterns
  • Single Domain Composition: Action + Store + Ref patterns
  • Multi-Domain Composition: Domain contexts with pattern layers
  • Enterprise Scale: Combined architecture approaches

Context Management

• Context Splitting Patterns - Strategies for managing and splitting large contexts
  • Setup Guide: Cross-Context Communication Setup
  • Domain-based, layer-based, and feature-based splitting strategies
  • Gradual migration patterns and cross-context communication
  • Performance optimization and best practices for context management

Architecture Decision Matrix

Setup-Based Decision Framework

Choose architecture based on Setup Complexity and Application Scale:

Setup Requirements	Single Domain	Multi-Domain	Enterprise Scale
Basic Setup	Action or Store Only	Not Recommended	Not Recommended
Multi-Context Setup	MVVM Architecture Setup	Domain Context Setup	Enterprise Setup
Advanced Setup	Nested MVVM	Event Bus Integration	Context Bridge

When to Use MVVM Architecture

• ✅ Complex single-domain applications requiring clear layer separation
• ✅ Team specialization by technical layers (Model, ViewModel, View)
• ✅ Applications with complex business logic requiring structured approach
• ✅ Performance-critical applications needing RefContext optimization
• Setup Required: MVVM Architecture Setup

When to Use Domain Context Architecture

• ✅ Multi-domain business applications with distinct business areas
• ✅ Team boundaries aligned with business domains (User, Product, Order domains)
• ✅ Microservice architecture alignment requiring domain separation
• ✅ Document-centric workflow management with domain-specific contexts
• Setup Required: Domain Context Architecture Setup

When to Use Combined Approach

• ✅ Enterprise-scale applications requiring both domain and technical separation
• ✅ Multiple business domains with complex technical requirements
• ✅ Large teams with both domain and technical specialization
• ✅ Applications requiring graduated complexity and incremental architecture evolution
• Setup Required: Enterprise Multi-Context Setup

Setup-First Quick Start Guide

1. Complete Setup Configuration

Before implementing patterns, establish proper setup:

// Choose your primary setup approach
import { 
  // For MVVM: Layer-based setup
  createStoreContext,    // Model layer
  createActionContext,              // ViewModel layer
  createRefContext,                 // Performance layer

  // For Domain Context: Domain-based setup
  composeProviders,                 // Provider composition
  
  // For Enterprise: Advanced setup
  // See Multi-Context Setup Guide
} from '@context-action/react';

2. Architecture Implementation Path

Path A: MVVM Architecture (Technical Layer Separation)

1. Setup: Follow MVVM Architecture Setup
2. Implementation: Apply MVVM Pattern guidelines
3. Optimization: Use Context Splitting for performance
4. Advanced: Implement Composition Strategies for complex scenarios

Path B: Domain Context Architecture (Business Domain Separation)

1. Setup: Follow Domain Context Architecture Setup
2. Implementation: Apply Domain Context Pattern guidelines
3. Communication: Implement Cross-Context Communication
4. Scaling: Use Enterprise Setup Patterns

Path C: Combined Enterprise Architecture

1. Setup: Follow Enterprise Multi-Context Setup
2. Foundation: Establish Context Bridge patterns
3. Implementation: Combine both MVVM and Domain patterns as needed
4. Management: Use Nested Domain Composition

3. Setup Validation Checklist

✅ Prerequisites Met: All required setup guides have been followed
✅ Type Safety: All contexts have proper TypeScript configurations
✅ Provider Composition: Providers are organized using composeProviders
✅ Performance Optimization: RefContext is configured for performance-critical paths
✅ Cross-Context Communication: Event bus or context bridge is configured if needed
✅ Export Strategy: Proper barrel exports and domain bundles are established

Quick Architecture Comparison

Architecture	Setup Complexity	Best For	Setup Guide
MVVM	Moderate	Single domain, technical teams	MVVM Setup
Domain Context	Moderate to High	Multi-domain, business teams	Domain Setup
Combined Enterprise	High	Large scale, complex requirements	Enterprise Setup

Integration with Framework Patterns

All architecture patterns integrate seamlessly with the Context-Action framework's core patterns:

Action Integration

• Action Patterns: Reference Action Pattern Documentation
• Memory Management: Action patterns include advanced memory management with handler limits
• Setup Foundation: Use Basic Action Setup as foundation

Store Integration

• Store Patterns: Reference Store Pattern Documentation
• Setup Foundation: Use Basic Store Setup as foundation

Ref Integration

• Ref Patterns: Reference Ref Pattern Documentation
• Setup Foundation: Use Ref Context Setup for performance optimization