Документ взят из кэша поисковой машины. Адрес оригинального документа : http://www.stsci.edu/~miller/papers-and-meetings/98-AAS/RPS2/Abstract.txt Дата изменения: Thu Nov 22 00:04:36 2007 Дата индексирования: Sun Dec 23 08:38:27 2007 Кодировка: Поисковые слова: ngc 5128

RPS2 Proposal Submission Software: Testing and Distribution of Periodically Updated Software

Robert E. Douglas, Jr.

PRESTO/SST
Space Telescope Science Institute
3700 San Martin Drive
Baltimore, MD 21218
Phone: (410) 338-4497
Fax: (410) 338-1592
Email: rdouglas@stsci.edu

In 1995, the Space Telescope Science Institute (STScI) introduced RPS2
(Remote Proposal Submission 2nd Generation). RPS2 is used by Hubble
Space Telescope (HST) proposers to prepare their detailed observation
descriptions. It is a client/server system implemented using Tcl/Tk.
The client can transparently access servers on the user's machine, at
STScI, or on any other machine on the Internet. The servers combine
syntax checking, feasibility analysis, orbit packing, and constraint
and schedulability analysis of user-specified observations.

Prior to the release of RPS2, observers used a system which provided
only syntax checking. RPS2 now provides the observers with some of
the more advanced software, that had previously been available only to
STScI staff for the preparation of detailed observing plans. The RPS2
system consists of four independent subsystems which are controlled by
the client/server mechanism.

A problem with a system of this size and complexity is that the
software components, which continue to grow and change with HST
itself, must continually be tested and distributed to those who need
them. In the past, it had been acceptable to release the RPS2
software only once per observing cycle, but it became apparent before
the 1997 HST Servicing Mission that multiple releases of RPS2 were
going to be required to support the new instruments. This paper
discusses how RPS2 and its component systems are maintained, updated,
tested, and distributed.