What is the purpose of a business model?

A business model should answer the following questions ...
  1. Who are the target customers for this business venture?
  2. How will the enterprise create and deliver value for these customers?
  3. What is the primary competition for this venture?
  4. How is the enterprise different and better from the competition?
  5. What are the primary core competencies of the enterprise?
  6. What is the scope of products and activities?
  7. How is the venture organization structured?
  8. How will this venture capture value for profit?
  9. How will this venture grow, and over what time period?
  10. How will this venture attract and retain talent?