The document discusses the redevelopment of the THAAD GUI. The old GUI was developed many years ago using outdated tools and did not share code between applications, increasing maintenance costs. A new GUI was developed using C++ and Qt to address these issues. Plug-ins were used to share common elements between applications and reduce duplication while maintaining a consistent look and feel. The new GUI was well received, reducing training time and being preferred by users.
![Overview of THAAD ,[object Object],[object Object],[object Object],[object Object],August 1, 2011 Frank J. Lhota Slide](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)