Toward empirically derived methodologies and tools for human-computer interface development
International Journal of Man-Machine Studies
Designing mega widgets in the Tix library
TCLTK '98 Proceedings of the 3rd Annual USENIX Workshop on Tcl/Tk - Volume 3
Prototyping NBC's GEnesis broadcast automation system using Tcl/Tk
TCLTK '98 Proceedings of the 3rd Annual USENIX Workshop on Tcl/Tk - Volume 3
Using Tcl to build a buzzword compliant environment that glues together legacy analysis programs
TCLTK'00 Proceedings of the 7th conference on USENIX Tcl/Tk - Volume 7
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GEnesis is a system in use at the NBC television network for automating the composition and distribution of video. It works in a mission critical environment; a system failure could potentially result in a substantial loss of revenue for the network. Tcl/Tk has been an integral part of the operator interface and data handling portions of the GEnesis system from the earliest stages of prototyping. We originally planned to replace the system prototype based on Tcl/Tk with a production system built in a compiled, object-oriented language and using commercial component software. After the prototype phase was completed, the developers and management together decided to keep numerous system components in Tcl, while migrating some complex and performance-critical functions from Tcl to a C++ message passing architecture. This paper discusses that decision and presents our experience with converting the prototype into a fully functional system.