Get to know potential or existing customers. Research new agencies to target or opportunities to expand your relationship into other departments within an existing customer. Where is an agency spending? On which contract vehicles do they do business?
For custom or commercial applications that require tight integration with the VistA database or business logic, the interface of each VistA package is documented (seewww.architecture.osehra.org), identifying both the code routines and the data fields owned by the package. VistA source code is free...