# MarkiTect Use Cases & Tooling Gap Analysis

**Analysis Date:** 2025-10-02
**Based on:** Issue #63 Use Case Brainstorming
**Examples Created:** Invoice template, Design pattern document

## Current MarkiTect Strengths ✅

### **Document Structure & Metadata**
- **Frontmatter parsing**: Full support for YAML/JSON/TOML metadata
- **Contentmatter extraction**: MultiMarkdown key-value pairs from content body
- **Tailmatter management**: QA checklists, editorial workflow, agent configurations
- **Schema generation**: Automatic JSON schema creation from document structure
- **Validation**: Schema-based document validation with detailed error reporting

### **Analysis & Querying**
- **AST parsing**: Complete document structure analysis
- **Database storage**: SQLite integration with comprehensive querying
- **Statistics**: Detailed document metrics and analytics
- **CLI interface**: Comprehensive command set for all operations

### **Tested Successfully**
- ✅ Complex document metadata extraction (invoice frontmatter)
- ✅ Nested tailmatter access (pattern complexity scores)
- ✅ Quality assurance workflows (QA checklists with progress tracking)
- ✅ Schema generation for structured documents

## Identified Gaps & Missing Capabilities ❌

### **1. Template Engine & Dynamic Generation**
**Problem:** No way to generate documents from templates + data
**Use Cases Affected:** Invoices, letters, offers, contracts, reports
**Current Limitation:** Templates contain placeholder syntax but no rendering engine

```markdown
# Current: Static template with {{placeholders}}
**Customer:** {{customer.name}}
**Total:** {{total}} {{currency}}

# Needed: Rendered output
**Customer:** Acme Corporation
**Total:** 9514.05 EUR
```

**Recommended Solution:** Template rendering system with variable substitution

### **2. Calculation & Business Logic Engine**
**Problem:** No mathematical operations or formula evaluation
**Use Cases Affected:** Invoices, financial reports, pricing calculations
**Current Limitation:** Cannot compute totals, taxes, or derived values

```yaml
# Current: Manual calculations in data file
subtotal: 7995.00
tax_amount: 1519.05  # Manually calculated
total: 9514.05      # Manually calculated

# Needed: Automatic calculation
calculations:
  subtotal: "{{sum line_items 'total'}}"
  tax_amount: "{{multiply subtotal tax_rate}}"
  total: "{{add subtotal tax_amount}}"
```

**Recommended Solution:** Expression evaluation engine with mathematical functions

### **3. Multi-Document Relationships**
**Problem:** No cross-document references or relationship management
**Use Cases Affected:** Documentation sets, linked specifications, project portfolios
**Current Limitation:** Each document is isolated

```markdown
# Needed: Document linking and validation
Related Documents:
- Specification: [ref:SPEC-001]  # Validate reference exists
- Parent Project: [ref:PROJ-2025-Q4]  # Auto-update if renamed
```

**Recommended Solution:** Document relationship system with reference validation

### **4. Batch Processing & Workflows**
**Problem:** No multi-document operations or automation
**Use Cases Affected:** Mass generation, batch validation, workflow automation
**Current Limitation:** All operations are single-document focused

```bash
# Needed: Batch operations
markitect generate-batch --template invoice.md --data customers.csv --output ./invoices/
markitect validate-all --schema contract.schema.json ./contracts/*.md
markitect workflow run --pipeline monthly-reports.yaml
```

**Recommended Solution:** Batch processing commands and workflow orchestration

### **5. External Data Integration**
**Problem:** No integration with external data sources
**Use Cases Affected:** CRM integration, API data, database synchronization
**Current Limitation:** All data must be manually prepared

```bash
# Needed: Data source integration
markitect import --source database --query "SELECT * FROM customers" --template customer.md
markitect sync --api https://api.example.com/contacts --format contact.md
markitect export --target csv --fields "name,email,status" ./contacts/*.md
```

**Recommended Solution:** Data connector system for external sources

### **6. Advanced Output Formats**
**Problem:** Limited output format support
**Use Cases Affected:** Professional documents, presentations, reports
**Current Limitation:** Primarily markdown and JSON output

```bash
# Needed: Professional output formats
markitect export --format pdf --template letterhead.pdf invoice.md
markitect convert --to docx --styles corporate.docx proposal.md
markitect generate --format html --css professional.css report.md
```

**Recommended Solution:** Multi-format export system with styling support

## Priority Use Case Analysis

### **High Impact, High Feasibility**
1. **Template Engine** - Core functionality for many business use cases
2. **Calculation Engine** - Essential for financial and quantitative documents
3. **Batch Processing** - Automation foundation for scaling operations

### **Medium Impact, Medium Feasibility**
4. **Multi-Document Relationships** - Important for complex documentation
5. **External Data Integration** - Valuable for business system integration

### **High Impact, Lower Feasibility**
6. **Advanced Output Formats** - Important but complex implementation

## Recommended Next Steps

### **Phase 1: Core Template System** (Issue #64 proposal)
- Implement basic template rendering with variable substitution
- Add mathematical expression evaluation
- Support for conditional content and loops

### **Phase 2: Batch Operations** (Issue #65 proposal)
- Multi-document processing commands
- Data-driven document generation from CSV/JSON
- Batch validation and reporting

### **Phase 3: Integration & Export** (Issue #66 proposal)
- External data source connectors
- Advanced output format support
- Cross-document relationship management

## Example Use Cases Ready for Implementation

### **1. Invoice Generation System**
```bash
# With proposed template engine
markitect generate --template invoice.md --data customer-orders.csv --output ./invoices/
markitect validate-batch --schema invoice.schema.json ./invoices/*.md
markitect export --format pdf --output ./invoices/pdf/ ./invoices/*.md
```

### **2. Pattern Library Management**
```bash
# With proposed relationship system
markitect link-patterns --category "Data Access" --validate-references
markitect generate-index --template pattern-index.md --source ./patterns/
markitect validate-consistency --check-crossrefs ./patterns/*.md
```

### **3. Compliance Documentation**
```bash
# With proposed workflow system
markitect workflow run --pipeline iso27001-audit.yaml
markitect generate-report --template compliance-report.md --data audit-results.json
markitect validate-requirements --standard iso27001 ./documentation/
```

These practical applications reveal significant opportunities to enhance MarkiTect's value proposition for real-world business use cases.