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  • Pausch, Terrance John.
     
     Subjects
     
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  • CAD (Computer-aided design)
     
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  • Computer-aided engineering
     
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  • Engineering design -- Data processing
     
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  • MSEM Thesis.
     
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  •  In search of a compu...
     
     
     
     MARC Display
    In search of a computer aided design system / by Terrance John Pausch.
    by Pausch, Terrance John.
    Subjects
  • CAD (Computer-aided design)
  •  
  • Computer-aided engineering
  •  
  • Engineering design -- Data processing
  •  
  • MSEM Thesis.
  • Description: 
    79 leaves : ill. ; 29 cm.
    Contents: 
    The history and the future of CAD -- Sources of information -- What is a CAD system? -- The feasibility study -- The decision to purchase -- Training and operation -- Conclusion.
    The purpose of this paper is to act as a guide in the steps that a business may pursue to determine if computer aided design (CAD) is a practical method of improving the productivity of its engineering department. I will limit my discussion to those businesses that do not have a need or a desire for computer aided manufacturing (CAM) because CAM is another, although related, subject.
    CAD is the use of computers in an interactive graphics computer system to assist in the process of conceptualizing, analyzing and documenting designs.
    This statement leads to another definition: an interactive graphics computer system is one which interacts with the operator. That is to say, that while information is being added to the computer’s data base by the operator, the operator is fed information from the computer system to continually update the operator’s understanding of the level of completion of the task. An interactive graphics computer system interacts so closely with the operator that the computer system can be efficiently and economically used as a design and drafting tool.
    A CAD system is a computer system of specialized hardware (physical components) and software (written programs to direct internal computer operation) designed specifically for engineering design, drafting, analysis, and manufacturing engineering.
    Using a CAD system, designers, draftsmen, and engineers can develop, analyze, and manipulate engineering designs on a television-like display terminal. Different views and perspectives of a design can be obtained, small sections of a design can be magnified for closer inspection, dimensions and weights of a design can be calculated automatically, engineering analysis can be quickly performed and parts lists can be generated automatically.
    Most CAD systems are modular. Hardware components and software programs are selected according to user requirements. A typical CAD system includes a computer and mass memory for processing and storing information, one or more input terminals or workstations for creating and observing designs, and one or more output devices for converting information stored in the system into drawings and reports.
    With claims of productivity increases of 8 to 1 for electrical design and 4 to 1 for mechanical design the manufacturing business cannot ignore CAD because these productivity increases would obviously mean reduced costs per sales dollar.
    To determine the practicality of the purchase of a CAD system, the manufacturing business needs to answer several questions about itself and about CAD. These questions center around three broad categories of information: 1) what are the manufacturer’s needs? 2) what hardware is available to meet the manufacturer’s needs? 3) what software or programs are available to meet the manufacturer’s needs?
    To help answer the questions above, there are many articles in trade magazines, seminars and vendor literature available. I have found, through investigating the purchase of a CAD system for the manufacturing business for which I work, that the most difficult task facing me was to develop and assimilate all of the information available from the above mentioned sources into an organized decision making structure. In other words, to know what is available and from whom and to know the steps necessary to reach a correct decision.
    This paper, then, will attempt to guide the reader through this maze of information and thus shorten and improve the decision making process.
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    Walter Schroeder LibraryMaster's ThesesAC805 .P38 1984AvailableAdd Copy to MyList

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