Business logic

Dear Zoho Team
There are some things I couldn’t understand. Please bear with me and explain-

1-What is the business logic behind the Potentials and Opportunities in your CRM Module? Aren’t they the same as Leads?
2-Do you have a write-up or any material which explains the business logic in the CRM module?

3-What would be the differences in the business logic for B2B & B2C?

Regards
Atul

atul