CAD


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CAD:

see computer-aided designcomputer-aided design
(CAD) or computer-aided design and drafting
(CADD), form of automation that helps designers prepare drawings, specifications, parts lists, and other design-related elements using special graphics- and calculations-intensive computer programs.
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CAD

[kad]
(computer science)

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.

CAD

CAD

(Computer-Aided Design) Using high-speed desktop computers to design products. Either a mouse or graphics tablet is used for the physical drawing, and a scanner may be attached for additional input. The output of a CAD system is often electronically transmitted to a computer-aided manufacturing (CAM) system or 3D printer, which builds the objects (see CAD/CAM and 3D printing).

Generic or Specialized
CAD software is available for generic design or specialized uses, such as architectural, electrical and mechanical. The software may also be highly specialized for creating products such as printed circuits and integrated circuits.

Solid and Parametric Modeling
More complex forms of CAD are solid modeling and parametric modeling, which allows objects to be created with real-world characteristics. For example, in solid modeling, objects can be sectioned (sliced down the middle) to reveal their internal structure. In parametric modeling, objects have meaningful relationships with each other (a door must be on a wall, not the floor; holes cannot be drilled too close to the edge, etc.). See wireframe modeling, surface modeling, solid modeling, parametric modeling, graphics and CAE.


Two or Three Dimensions
While 2D CAD programs work for some applications, they are essentially the computer counterpart to hand-drawn objects. In contrast, 3D CAD enables objects to be drawn with sides, top and bottom so they can be manipulated as a whole and viewed from any angle.







From Rivets to Trees
Some CAD software suites can take the finished object and render it as a real-world entity. This building was designed in MicroStation Modeler and rendered in MicroStation MasterPiece from Bentley Systems. (Image courtesy of Bentley Systems, Inc. and Cooper Carry.)
References in periodicals archive ?
There were no significant differences between CAD and non-CAD groups in the distribution of allele frequencies and genotype frequencies.
Checking Country Life's 21 ways to identify a cad, however, I was relieved to see my cad-rating is not what it used to be, scoring only a miserable two.
We hypothesised that strict adherence to NICE guidelines results in over-estimation of the pre-test probability of CAD and therefore over-investigation of patients presenting with stable chest pain.
What's more, the Apparel CAD System industry development trends and marketing channels are analyzed.
Lauderdale, Miami and Tampa, FL; Phoenix, AZ; Chattanooga and Nashville, TN; Kansas City, KS; Springfield, MO; and Saltillo, MX; MLC CAD Systems is one of the largest and most well-respected companies in CAD, CAM, CAE, PDM, PLM, and 3D-printing industries.
In the whole populations studied, 60 subjects have been diagnosed with CAD, and subjects with no angiographic evidence of CAD were designed as non-CAD control (n = 20).
A woman's chance of getting CAD becomes higher aftergoing through menopause.
They assessed outcomes after routine screening mammography with CAD (495,818) or without CAD (129,807).
Measuring the real-world impact of CAD on mammographic accuracy has been difficult and has yielded inconsistent and contradictory findings; most studies to date have been relatively small, have focused on older women only, or haven't taken into account the early part of radiologists' learning curves.
has completed the development of structured reporting (SR) for CAD marks for digital breast tomosynthesis images.
CAD at $ 1.3 bn as trade gap narrows on lower oil prices and robust foreign inflow
If you have celiac disease, you are twice as likely to have coronary artery disease (CAD) as people who don't have celiac disease, Cleveland Clinic researchers discovered.