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| Paper: |
A Tcl/Tk-Based, Intelligent Graphical Editor for Preparing HST Programs |
| Volume: |
101, Astronomical Data Analysis Software and Systems V |
| Page: |
447 |
| Authors: |
Asson, D. J.; Bose, A.; Krueger, A. |
| Abstract: |
The Space Telescope Science Institute (STScI) built the Proposal Editor (PED) system to be an intelligent graphical editor for creating a detailed observing program for the Hubble Space Telescope (HST). Previously, users would type in an observing program in a text editor, and then essentially compile it to check for errors. PED gives users an interactive session that provides menus and selections whenever possible, eliminating many possible errors resulting from typos. Multiple choice selections include the invalid values with explanations as to why they are invalid. A declarative constraint mechanism is used to encode legal and illegal values for individual program parts as well as relationships between parts. Error checking is provided on individual parts, as well as on the program as a whole. |
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