** Summary **

Boeing Satellite Systems (El Segundo California) uses [Tcl] extensively in its
Ground and Test Equipment operations. Large and complex products for both
internal and external customers use Tcl as the core language, with extensions
written in [C]/[C++].

Ease of integration with existing legacy applications facilitated its initial
use.

[[[incr tcl]/tk]] is the primary language extension used, and without it,
continued use of Tcl for the large projects would be questionable.

** Resources **

   Jaleh Ferdowsian:   System tests include spacecraft attitude verification with TCL/TK test codes in clean room environments (ATLO) and subsystem tests include ADA SW verification, 2003

   Sibren Isaacman:   user interfaces in Tcl/Tk for the Common Test Executive, a general testing system for spacecraft, for Boeing Space Systems

** Literature **

   [http://www.boeing.com/defense-space/space/capps/Boeing_KSC_Site_Capabilities_Manual.ppt%|%Kennedy Space Center Technical Services]:   2011, a marketing brochure which includes Tcl and Tk in the list of technologies


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