# Documentation Plan: Import, Views, Scale, and Requirements

## Overview

This document outlines the comprehensive documentation plan for four key areas of the Sruja architecture language: **Import** functionality, **Views** customization, **Scale** considerations, and **Requirements** management. The plan follows the established content style guide and provides consistent examples with syntax blocks.

## 1. Import Documentation

### Purpose
Document the import system that allows modular architecture definitions and code reuse across multiple files.

### Target Audience
- Architecture designers creating modular systems
- Teams managing large architecture projects
- Users wanting to organize complex architectures

### Content Structure

#### 1.1 Basic Import Syntax
```markdown
## Import Basics

### Syntax
\`\`\`sruja
import "path/to/file.sruja"
import "shared/components.sruja"
\`\`\`

### Key Concepts
- Imports are processed before architecture validation
- Relative and absolute paths supported
- Circular imports are detected and prevented
- Imported elements are available in current scope
```

#### 1.2 Import Examples
```markdown
## Import Examples

### Basic Import
\`\`\`sruja
import "shared/persons.sruja"
import "shared/systems.sruja"

architecture "My App" {
    person Customer  // Available from persons.sruja
    system Payment   // Available from systems.sruja
}
\`\`\`

### Multi-level Imports
\`\`\`sruja
import "components/database.sruja"
import "components/services.sruja"
import "integrations/external.sruja"

architecture "E-commerce Platform" {
    system Shop {
        container WebApp
        container API
        datastore DB  // From database.sruja
    }
    
    system PaymentGateway  // From external.sruja
}
\`\`\`
```

#### 1.3 Import Best Practices
```markdown
## Import Best Practices

### Organization Tips
- Group related elements in separate files
- Use descriptive filenames
- Create reusable component libraries
- Document dependencies between files

### Example Structure
\`\`\`
project/
├── architecture.sruja
├── shared/
│   ├── persons.sruja
│   ├── systems.sruja
│   └── components.sruja
├── domains/
│   ├── ecommerce.sruja
│   └── payments.sruja
└── integrations/
    └── external.sruja
\`\`\`
```

## 2. Views Documentation

### Purpose
Document the views system for customizing architecture visualizations and generating different perspectives of the same architecture.

### Target Audience
- Technical architects creating presentations
- Stakeholders needing different views of the system
- Teams requiring custom visualizations

### Content Structure

#### 2.1 Views Overview
```markdown
## Views Overview

### What are Views?
Views allow you to customize how your architecture is displayed. They are optional - if not specified, standard C4 views are automatically generated.

### View Types
- \`systemContext\` - System context view (C4 L1)
- \`container\` - Container view (C4 L2)  
- \`component\` - Component view (C4 L3)
- \`deployment\` - Deployment view
```

#### 2.2 View Syntax and Examples
```markdown
## View Syntax

### Basic View Structure
\`\`\`sruja
views {
    container Shop "API Focus" {
        include Shop.API Shop.DB
        exclude Shop.WebApp
        autolayout "lr"
    }
}
\`\`\`

### View Expressions
- \`include *\` - Include all elements in scope
- \`include Element1 Element2\` - Include specific elements  
- \`exclude Element1\` - Exclude specific elements
- \`autolayout "lr"|"tb"|"auto"\` - Layout direction hint
```

#### 2.3 Advanced View Customization
```markdown
## Advanced Views

### Custom Styling
\`\`\`sruja
views {
    styles {
        element "Database" {
            shape "cylinder"
            color "#ff0000"
        }
        
        relation "API" {
            color "#0066cc"
            style "dashed"
        }
    }
}
\`\`\`

### Multiple Views
\`\`\`sruja
views {
    systemContext "High Level" {
        include *
        autolayout "lr"
    }
    
    container "Services" {
        include Shop.API Payment.API
        exclude Shop.WebApp
        autolayout "tb"
    }
    
    component "Database Layer" {
        include Shop.DB Payment.DB
        autolayout "auto"
    }
}
\`\`\`
```

## 3. Scale Documentation

### Purpose
Document scaling considerations, capacity planning, and performance characteristics for architectures defined in Sruja.

### Target Audience
- System architects designing for scale
- Operations teams planning capacity
- Performance engineers optimizing systems

### Content Structure

#### 3.1 Scale Basics
```markdown
## Scale Fundamentals

### What is Scale Documentation?
Scale documentation captures how your architecture handles growth, load, and performance requirements.

### Key Areas
- Capacity planning and limits
- Scaling strategies (horizontal vs vertical)
- Performance characteristics
- Bottleneck identification
- Resource requirements
```

#### 3.2 Scale Syntax and Examples
```markdown
## Scale Syntax

### Capacity Planning
\`\`\`sruja
system "E-commerce Platform" {
    metadata {
        maxConcurrentUsers "10000"
        expectedGrowth "20% monthly"
        peakLoad "5000 requests/second"
    }
    
    container API {
        metadata {
            instances "3-10"
            scalingStrategy "horizontal"
            cpuThreshold "70%"
            memoryThreshold "80%"
        }
    }
}
\`\`\`

### Performance Characteristics
\`\`\`sruja
container Database {
    metadata {
        readCapacity "10000 IOPS"
        writeCapacity "5000 IOPS"
        responseTime "< 100ms"
        availability "99.9%"
    }
}
\`\`\`
```

#### 3.3 Advanced Scale Patterns
```markdown
## Advanced Scale Patterns

### Auto-scaling Configuration
\`\`\`sruja
container "API Gateway" {
    metadata {
        minInstances "2"
        maxInstances "20"
        targetCPU "60%"
        scaleUpCooldown "60s"
        scaleDownCooldown "300s"
    }
}
\`\`\`

### Regional Distribution
\`\`\`sruja
deployment "Global" {
    node "US-East" {
        metadata {
            region "us-east-1"
            capacity "50%"
            latencyTarget "< 50ms"
        }
    }
    
    node "EU-West" {
        metadata {
            region "eu-west-1"
            capacity "30%"
            latencyTarget "< 100ms"
        }
    }
}
\`\`\`
```

## 4. Requirements Documentation

### Purpose
Document functional, non-functional, and constraint requirements within the architecture definition.

### Target Audience
- Business analysts defining requirements
- Developers implementing features
- QA teams creating test plans

### Content Structure

#### 4.1 Requirements Overview
```markdown
## Requirements Overview

### Requirement Types
- \`functional\` - Features and capabilities the system must provide
- \`nonfunctional\` - Quality attributes like performance, security, usability
- \`constraint\` - Limitations or restrictions on the design

### Basic Syntax
\`\`\`sruja
requirement R1 functional "User must be able to create an account"
requirement R2 nonfunctional "Page load time must be under 2 seconds"
requirement R3 constraint "Must use PostgreSQL database"
\`\`\`
```

#### 4.2 Requirements with Implementation
```markdown
## Requirements with Implementation

### Linking Requirements to Components
\`\`\`sruja
requirement R1 functional "Support user authentication"
requirement R2 functional "Process payments securely"

system "E-commerce Platform" {
    container "Web App" {
        metadata {
            implements "R1"
            implements "R2"
        }
    }
}
\`\`\`

### Detailed Requirements
\`\`\`sruja
requirement AUTH_001 functional "Users can register with email and password" {
    metadata {
        priority "high"
        complexity "medium"
        estimatedHours "16"
    }
}

requirement PERF_001 nonfunctional "System must handle 1000 concurrent users" {
    metadata {
        metric "concurrent_users"
        target "1000"
        measurement "load_test"
    }
}
\`\`\`
```

#### 4.3 Requirements Best Practices
```markdown
## Requirements Best Practices

### Naming Conventions
- Use descriptive IDs: \`AUTH_001\`, \`PAYMENT_002\`, \`PERF_001\`
- Group related requirements with common prefixes
- Keep IDs unique across the architecture

### Requirement Quality
- Be specific and measurable
- Avoid ambiguous language
- Include acceptance criteria
- Link to implementing components

### Example Architecture with Requirements
\`\`\`sruja
architecture "Payment System" {
    // Functional Requirements
    requirement PAYMENT_001 functional "Process credit card payments"
    requirement PAYMENT_002 functional "Support multiple currencies"
    requirement PAYMENT_003 functional "Generate payment receipts"
    
    // Non-functional Requirements  
    requirement PERF_001 nonfunctional "Process payment in < 3 seconds"
    requirement SEC_001 nonfunctional "PCI DSS compliance"
    requirement AVAIL_001 nonfunctional "99.9% uptime"
    
    // Constraints
    requirement CONST_001 constraint "Must integrate with Stripe API"
    requirement CONST_002 constraint "Must use TLS 1.3 minimum"
    
    system "Payment Gateway" {
        container "API" {
            metadata {
                implements "PAYMENT_001"
                implements "PERF_001"
            }
        }
        
        container "Security Service" {
            metadata {
                implements "SEC_001"
                implements "CONST_002"
            }
        }
    }
}
\`\`\`
```

## 5. Cross-Cutting Examples

### 5.1 Complete Architecture Example
```markdown
## Complete Example: Scalable E-commerce Platform

This example demonstrates import, views, scale, and requirements working together:

\`\`\`sruja
// Import shared components
import "shared/auth.sruja"
import "shared/payments.sruja"

architecture "Scalable E-commerce Platform" {
    // Requirements
    requirement R001 functional "Support 10k concurrent users"
    requirement R002 functional "Process payments securely"
    requirement R003 nonfunctional "Page load < 2 seconds"
    requirement R004 constraint "Must use AWS infrastructure"
    
    person Customer
    person Admin
    
    system "E-commerce Platform" {
        container "Web App" {
            technology "React, Next.js"
            metadata {
                implements "R001"
                maxInstances "10"
                scalingStrategy "horizontal"
            }
            component "Product Catalog"
            component "Shopping Cart"
            component "Checkout"
        }
        
        container "API Gateway" {
            technology "Node.js, Express"
            metadata {
                implements "R002"
                implements "R003"
                instances "3-15"
                targetResponseTime "< 500ms"
            }
        }
        
        datastore "Database" {
            technology "PostgreSQL"
            metadata {
                implements "R004"
                readReplicas "3"
                backupStrategy "daily"
            }
        }
    }
    
    Customer -> Platform.WebApp "Browses products"
    Platform.WebApp -> Platform.API "Makes API calls"
    Platform.API -> Platform.Database "Reads/Writes data"
}

// Custom views for different audiences
views {
    systemContext "Executive Summary" {
        include Customer Platform
        autolayout "lr"
    }
    
    container "Technical Architecture" {
        include Platform.*
        autolayout "tb"
    }
    
    component "Frontend Details" {
        include Platform.WebApp.*
        autolayout "auto"
    }
    
    styles {
        element "Database" {
            shape "cylinder"
            color "#3366cc"
        }
        element "API" {
            color "#dc3912"
        }
    }
}
\`\`\`
```

## 6. Documentation Delivery Plan

### Phase 1: Core Documentation (Week 1)
1. Import basics and syntax
2. Views overview and basic examples
3. Requirements fundamentals
4. Scale introduction

### Phase 2: Advanced Features (Week 2)
1. Advanced import patterns and best practices
2. Complex view customization
3. Requirements implementation and tracking
4. Scale patterns and capacity planning

### Phase 3: Integration Examples (Week 3)
1. Cross-cutting examples combining all features
2. Real-world use cases
3. Migration guides from monolithic to modular
4. Performance optimization examples

### Phase 4: Reference Materials (Week 4)
1. Quick reference cards
2. Syntax cheat sheets
3. Common patterns library
4. Troubleshooting guides

## 7. Success Metrics

### Documentation Quality
- **Completeness**: All features documented with examples
- **Accuracy**: Code examples tested and validated
- **Consistency**: Follows established style guide
- **Usability**: Clear progression from basic to advanced

### User Adoption
- **Page Views**: Track documentation usage
- **Example Usage**: Monitor use of provided examples
- **Community Feedback**: Collect user suggestions and issues
- **Support Reduction**: Measure decrease in support questions

## 8. Maintenance Plan

### Regular Updates
- Review and update examples quarterly
- Add new patterns as language evolves
- Update based on user feedback
- Maintain compatibility with latest Sruja version

### Community Contribution
- Accept community-submitted examples
- Review and integrate best practices
- Maintain quality standards
- Credit contributors appropriately

This documentation plan provides a comprehensive roadmap for creating thorough, consistent, and user-friendly documentation for the import, views, scale, and requirements features of the Sruja architecture language.