Www.JimIntriglia.com Refers to an example of making disparate clinical computing software work over a web browser in Using the Web to extend patient
care. Intriglia writes:

[This article] explores how CareGroup, a
network of hospitals in the Boston
area, developed a web-based
system to enable providers to access clinical
records any of the six area CareGroup hospital
databases. The challenge faced by developers was
to enable data access via a common web browser
to clinical information stored on dissimilar and
proprietary clinical information systems. A
Java/XML based system solution, developed by
the MIT W3 EMRS project group, was the key to
the infrastructure problem that CareGroup
developers faced. The University of Michigan
maintains a CareWeb demo where you can learn
more about the CareWeb architecture and
capabilities.