One target of the TANGRAM project was the development of a platform for distributed applications. The first implementations used Smalltalk.

Dr. K. P. Eckert, the architect of the project, designed the TANGRAM Distributed Processing Environment (DPE 1) and specified its components using Interface Definition Language (IDL).

My jobs were:

implementing DPE 1
and developing supporting DPE 1 Tools,
an IDL to Smalltalk generator,
a Monitoring prototype,
and giving Smalltalk support to the application developers.

Using the DPE, the Tangram team developed as first distributed application a video conferencing system, which can be seen on the upper part of the screen in the background of the photograph.
The Request Monitor Net Editor visualizing the running system can be seen in the lower part of the screen.