Download Advances in CAD/CAM Workstations: Case Studies by David A. Ackmann (auth.), Peter Cheng-Chao Wang Ph.D. (eds.) PDF

By David A. Ackmann (auth.), Peter Cheng-Chao Wang Ph.D. (eds.)

To comprehend what we all know and concentrate on what's to be recognized is an important method of treating CAD/CAM concerns. The problem for we all attracted to CAD/CAM and engineering facts dealing with is to below­ stand what we all know and what we have to find out about brand new and tomorrow's know-how, to trace the explosive improvement of our box and its broadening diversity of purposes, to kind during the information which compete for our consciousness, and to understand underlying developments. A key improvement long ago 12 months was once the quick and frequent popularity by means of all consumer segments of non-public computer-based CAD/CAM workstations, coupled with common use of software program applications, either these constructed for PC-based workstations and others switched over from major­ body and mini platforms to be used on PC-based or 32-bit workstations. If this pattern maintains for a number of extra years, up to 900/0 of all layout paintings could be entire on complicated models of PC-based workstations. Many software program structures owners unknown till lately to the PC-based CAD/CAM neighborhood have now come to dominate the market-companies akin to Autodesk, Chessell-Robocom, destiny web, T&W structures, P-CAD, Cascade, 4-D pics, CADAM, Wang & Hornbuckle, and greater than 20 different businesses who promote PC-based CAD/CAM software.

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However, as a result of the Bell System break up, AT&T Communications and the Bell Operating Companies were limited in the amount of data that could be shared. This resulted in the various departments entering into direct contracts with vendors and service bureaus to provide cartographic output. Since there were so many separate organizations requesting maps, duplicate efforts were being performed by different vendors and service bureaus. In fact, because of time frame requirements and parochial control issues, identical requests from several groups within the same AT&T department were forwarded to a single cartography house.

This included the drawing of each system symbol separately, interconnection of these symbols based on the hand-drawn sketch, and finally annotating flow lines and placing an EDP system name within each symbol. Allowing for correction of errors and changes in subschema flows as projects become more defined, this process went through several reiterations before final distribuiton. This was a very time-consuming task, requlrlng constant interaction between system designers, EDP planning staff 'and the drafting department.

The full bay compliments are the basis for Space and Power Planning. When the deleted input is shown, the subsequent functions glow or flash repetitively to indicate an engineering function jeopardy. The functional schema and subschema level must be searched to see if a modification or change can produce the required data. If it can, the "RATS NEST" feature can be activated to map the new interconnection path. When this is accomplished the line color, type and glow frequency can be changed to indicate the answer to the "what-if" question.

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