How to write a business requirements document (Breakdown by document section)

Are you a business analyst that has recently been assigned to document the business requirements for a new system? In this video, we walk through how to write a business document using a section, by section, walk-through. We will also be reverse-engineering Youtube as an example to see how the business requirements document would look for a platform like that.

Timestamps:
Official definition 1:29
Challenges of the business analyst 2:04
Document introduction 3:47
Document version control 4:23
Documents structure 4:58
Business and project objective 5:43
Needs statement 6:23
Expected functionality 7:15
Intended users 9:12
Constraints 9:26
Scope 9:40
Future phases 10:26
Support model 10:52
List of deliverables 11:12
High level architecture 12:50
Interfaces 13:53
Assumptions 14:44
Functional requirements 15:02
Non-functional requirements 15:50
Data requirements 16:12

[playwithvihaan]

Thank you so much. Which diagram one should include in BRD and FRD Document? and, do we have to write these two documents differently?