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- Newsgroups: comp.sys.amiga.misc
- Path: netcom.com!mbanet
- From: mbanet@netcom.com (David Waters)
- Subject: Re: Nasa&WindowsNT
- Message-ID: <mbanetDnwDFC.5D7@netcom.com>
- Organization: NETCOM On-line Communication Services (408 261-4700 guest)
- X-Newsreader: TIN [version 1.2 PL1]
- References: <150839@cup.portal.com>
- Date: Thu, 7 Mar 1996 12:30:47 GMT
- Sender: mbanet@netcom22.netcom.com
-
- Gary Alan Peake (Gemini2@cup.portal.com) wrote:
- [snipped astronaut dialog w/mission control]
- : Windows 95 doesn't work on Earth, so what the hell made them think
- : it would work in space ?
-
- Let me tell you about ONE of *MY* experience with NASA...this is long!
-
- I worked at Rockwell in a Space Shuttle (SS) software verification and
- analysis group (Ascent/Orbit/Entry Integrated Guidance, Navigation, and
- Control - IGN&C) for about 14.75 years. I started on a HP-9845 back in
- 1979 when I was only 18 years old and was the youngest (functional)
- member of the SS flight support team in 1981. I wrote all of the code on
- the HP-9845 to process weather balloon data used to predict shuttle launch
- trajectories. The suite of programs became the standard operating
- procedures (SOP) used by Ascent IGN&C for STS-2 through STS-24 (for some
- reason they supposedly didn't do it for the Challenger's final flight).
-
- Anyway, another one of the group's responsibilities was to travel from
- Rockwell (Downey, California, USA) to NASA/Johnson Space Center
- (JSC-Houston, Texas, USA) to test changes to the software systems at the
- Shuttle Avionics and Integration Laboratory (SAIL). The SAIL is a test
- facility that uses real shuttle computers, hardware, and even (available)
- astronauts to pilot the simulation to verify code changes. One estimate
- is that the facility costs a minimum of $50,000 per hour when it's *NOT*
- running. And when it runs, a single test could last more than 10 hours
- (mainly for on-orbit operations).
-
- Apparently, someone got the bright idea to save money by beaming SAIL
- data from NASA/JSC to Downey to eliminate the costs associated with
- travel by Rockwell/Downey personnel. The decision, as usual, came from
- the top down and the plan was approved by many levels of management before
- we (some of the people who actually travelled) saw it. Plans were made,
- funds were allocated, equipment was purchased, etc., before the Downey
- S/W verification engineers knew all of the details. A facility, known as
- the Remote Test Monitoring Center (RTMC) was built at Downey.
-
- So, it turns out that the satellite link lacked the bandwidth to carry
- video. Many of our tests required the real-time observation of the
- cockpit to verify that switches and CRT displays responded accordingly.
- Therefore, for most or many of the tests, travel from Downey to Houston
- was still required.
-
- [Okay wake up...here comes my new Amiga 3000 to the rescue!]
-
- On my own time, I borrowed some shuttle cockpit close-out photos from
- another group and took them home to digitize them (using DCTV at the
- time). I used AmigaVision and The Director2 to create hot spots (buttons)
- out of the photos so that toggle switches toggled, buttons appeared
- depressed and undepressed, lamps appeared to "light", and even some of
- the CRT text display was simulated. I used my knowledge of the shuttle
- software to create an interactive simulation based on some key data
- parameters available in the shuttle downlist.
-
- I tested the responses by sending random numbers to the A3000, running
- the displays, from an A2000 to simulate the Amiga eavesdropping on an
- ethernet line with the real-time data. I invited my lead engineer,
- reluctantly responsible for the final implementation of the RTMC, to my
- home to see my solution. Management usually doesn't understand concepts
- so you have to build it first so that they get a *GENERAL* idea. ;-)
-
- My lead was extremely impressed. Of course, there was no way to simulate
- some of the more difficult items such as the Attitude Display Indicator
- (ADI sphere) and it was probable that too many parameters could slow down
- the program but one solution was to have several different Amigas
- simulating different display views...even allowing views to be switched.
-
- Essentially, I had re-created some of the cockpit display information
- that Downey engineers needed to see (instead of looking at a screen full
- of about 100 dynamic numeric values). So, all I needed was an ethernet
- card and permission to filter some of the parameters off of the link and
- feed them to the Amiga from one of the Gould (a nepotism story)
- workstations in-line with the data stream.
-
- My lead discussed the idea to our director (our manager didn't like new
- ideas) because she was one of the last people to approve the RTMC. My
- lead came back shaking his head in disbelief...
-
- It turns out that the whole RTMC project was planned to be shut-down
- within a year of operation and they hadn't even finished installing all
- of the pieces and testing the thing. What happened was that the original
- goal of the RTMC was to save money by eliminating the need for Rockwell
- engineers to travel from Downey to Houston for SAIL tests. Well, the
- travel budget for my department ranged from $350,000 - $500,000 per year
- while the cost of the satellite link (alone) was more than $1,000,000 per
- year. It became much worse when you added the costs associated with
- building and maintaining the facilities and the link.
-
- Why wasn't it killed when this was first revealed? Essentially, so many
- "higher ups" proudly bought into the idea, and spent a lot of time
- convincing someone else to allocate the funds, that it would be career
- suicide to go back and say "Oooops, we made a rounding error in our
- savings estimates!" Besides, part of the big corporation game is to
- claim savings in one budget area by spending *more* money in another
- budget area. Also, most or many of the managers get accomplishment
- credit when a facility begins operation - whether the net effect is
- positive or negative - mainly because their performance reviews are
- annual and rarely reviewed for the NET IMPACT of their decisions.
-
- So, needless to say, I became fed-up with the bureacracy and the
- simulation program that I developed eventually launched my own business,
- Multimedia Business Answers...but that's a story for another time kids!
-
- David "How's that for a bedtime story?" Waters
- --
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