This document describes the design details of the Parsons Institute for Information Mapping Canonic GUI Model (PCGM). The design of PCGM is derived from CAL Web Services (CAL-WS) and the Health Level 7 (HL7) Version 3.0 Reference Information Model (RIM). The main design goal of PCGM is to extend the CAL Web Services to suitable enterprise services for GUI usage on a variety of platform types (mobile, web, thick). This document also captures the development of a prototype plugin.