Success Criteria

Version 0.1.2 Goals (Completed)

• Can represent a simple ring-and-chain pattern
  
• Precise picot referencing works correctly
  
• Mock rings supported for advanced techniques
  
• Picot variations (small, large, joining) supported
  
• Picot length specifications work correctly
  
• Basic validation catches structural errors
  
• 1-based indexing is intuitive for users

Version 1.0 Goals

• Handles complex multi-motif designs
  
• Celtic tatting techniques supported
  
• Color changes properly tracked
  
• Generates readable instructions from markup
  
• Produces basic visual diagrams

User Acceptance

• Pattern designers can create complex patterns
  
• Beginners can follow generated instructions
  
• Advanced tatters prefer TatML over traditional notation
  
• Reduces pattern interpretation errors