Client-server technology was used to create the first deployable version of the platform. Early upgrades to the platform included moving to Microsoft Access 95 and broadening the platform's scope to include the ability to create and manage intervention protocols. Pre-packaged intervention protocols and data collection instruments were developed by PhDx to target several high profile disease states. In addition to selling the platform as an installed product, PhDx began to offer a service-bureau option to clients. In that scenario, clients collect survey data locally, then fax the completed surveys to PhDx for entry into the platform.
Periodic reports are then prepared and delivered to the client.
In late 1996 and early 1997, the platform was completely rewritten and emerged as a true web-based application. The server side of the platform was implemented using Dynamic HTML and Microsoft's Internet Information Server, Visual Basic and Active Server Pages. Microsoft's Internet Explorer and Netscape Navigator were targeted as preferred client-side web browsers. In early 1999, a prototype data warehouse was designed and populated with survey results captured by the Health Information Platform. PhDx has enhanced its service operation for clients to include read-only access to that client's data via the Internet.