computer-aided design

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Related to Computer-aided drafting: Cadd, Computer assisted design

computer-aided design

(CAD) or

computer-aided design and drafting

(CADD), form of automationautomation,
automatic operation and control of machinery or processes by devices, such as robots that can make and execute decisions without human intervention. The principal feature of such devices is their use of self-correcting control systems that employ feedback, i.e.
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 that helps designers prepare drawings, specifications, parts lists, and other design-related elements using special graphics- and calculations-intensive computer programs. The technology is used for a wide variety of products in such fields as architecture, electronics, and aerospace, naval, and automotive engineering. Although CAD systems originally merely automated drafting, they now usually include three-dimensional modeling and computer-simulated operation of the model. Rather than having to build prototypes and change components to determine the effects of tolerance ranges, engineers can use computers to simulate operation to determine loads and stresses. For example, an automobile manufacturer might use CAD to calculate the wind drag on several new car-body designs without having to build physical models of each one. In microelectronicsmicroelectronics,
branch of electronic technology devoted to the design and development of extremely small electronic devices that consume very little electric power. Although the term is sometimes used to describe discrete electronic components assembled in an extremely small
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, as devices have become smaller and more complex, CAD has become an especially important technology. Among the benefits of such systems are lower product-development costs and a greatly shortened design cycle. While less expensive CAD systems running on personal computers have become available for do-it-yourself home remodeling and simple drafting, state-of-the-art CAD systems running on workstations and mainframe computers are increasingly integrated with computer-aided manufacturingcomputer-aided manufacturing
(CAM), a form of automation where computers communicate work instructions directly to the manufacturing machinery. The technology evolved from the numerically controlled machines of the 1950s, which were directed by a set of coded instructions
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 systems.

Computer-aided design

The analysis and/or design, modeling, simulation, or layout of building design with the aid of a computer.

computer-aided design

[kəm′pyüd·ər ‚ād·əd də′zīn]
(control systems)
The use of computers in converting the initial idea for a product into a detailed engineering design. Computer models and graphics replace the sketches and engineering drawings traditionally used to visualize products and communicate design information. Abbreviated CAD.

computer-aided design (CAD)

The analysis and/or design, and/or modeling, and/or simulation, and/or layout of building design with the aid of a computer.
References in periodicals archive ?
Many computer-aided drafting (CAD) classes are taught in a manner similar to the traditional board drafting classes they replaced.
Geoprocessing's roots can be traced to computer-aided drafting, which provides users with layers of graphics on a map that represent spatial or geographic information.
[4] Duelm, B.L., Computer-Aided Drafting, Chicago, IL:Goodheart-Wilcox (1989).
Certified by the state of New Jersey in computer-aided drafting technology, she is obtaining her professional architect's license as well as her master's degree in business administration.
As a result of this collaboration, the school's curriculum was revised to reflect the computerization of the industrial manufacturing environment, and the need for workers to be trained in computer-aided drafting and manufacturing procedures.
The Baltimore City Community College in Md., has received software donations from leaders in the Computer-Aided Drafting and Design software industry who have shown their support of the college's CADD program.
Perhaps this frustration has been voiced by many municipal engineers or public works managers assigned the task of choosing and implementing a computer-aided drafting and design (CADD) system or expanding the application of an existing system.
Hewlett Packard's 3-D design modeling system (3DDMS) and the data and process management system (DPMS) deemphasize computer-aided drafting in favor of a data base-driven approach that incorporates product design and manufacturing process data.
The transition is from using traditional drafting (TRAD) equipment to using computer-aided drafting equipment (CAD).
Trade and industrial education prepares people for careers in a variety of trades, including carpentry, masonry, electrical and construction management; heating, ventilation and air conditioning systems; computer-aided drafting and manufacturing; automotive technology; and cosmetology.
More than 440 of LCC's 19,092 students will use the software this fall in the college's programs for machine technology and computer-aided drafting and design.
Data bases for design must support four principal processes: computer-aided drafting, shape description, engineering analysis, and kinematics.

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