you should use Archimate 3.1 specification and Archi Tool
select an object of study for the project
conduct thorough research and identify problems and /or possible area of improvement in the current architecture or the business process of the project
8 freelancers are bidding on average $15 for this job
business architect I'm interested to hear more about the project and about the subject. If you award me the project I'd be very glad to discuss this further and get started for you as soon as possible.. Thanks You!