The Value Chain is the next step after the Ambition Statement. The business requirements of the Ambition Statement are the input for the Value Chain.
The Value Chain uses the same approach as the Ambition Statement.
The Value Chain relates business requirements (1) to business components (2) such as business processes, products, channels, etc. that can satisfy the business requirements. Business processes are specified by user requirements (3) so that employees can perform these processes. The same applies to products, channels, etc.