Business consultant
The first roles that come into play in the project are of the business consultants from the partner's team and the key users from the customer's team. These two roles define the business processes used by the customer, which of these processes will be done in Dynamics NAV, and how the system should behave.
While defining the business processes, the business consultant explains to the customer's key users whether these processes can be done in standard Dynamics NAV, if the processes exist in Dynamics NAV but are slightly different from those done by the customer (in which case, the customer may change its process to adapt to the Dynamics NAV process, or the Dynamics NAV process may be changed to adapt to the customer's process), or if the process doesn't exist at all in Dynamics NAV and will have to be developed.
The business consultant writes down a document (the Project Requirements Document (PRD) or the Implementation Specifications)...