Plat preparation (calculations) is a pretty comprehensive and involved process. Plat preparation is the effort and coordination with the owners, architects, and engineers to obtain the legal information, deeds, ownership information, lienholder information and other misc. items needed for inclusion on the plat. Plat preparation is also the process involved in acquiring and disseminating the necessary survey features into the elements needed to provide the base map for a subdivision plat. Once the base map is prepared, a technician can overlay the land plan, compare against published development criteria, and then apply necessary easements, setbacks, notes, certifications and dedicatory language required to make an application to the jurisdictional entity.