PDM

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PDM

(industrial engineering)

precedence diagram method

(communications)

pulse-duration modulation

PDM

(1)

Product Development Management.

PDM

(2)

Product Data Management.

PDM

(1) (Product Data Management) An information system used to manage the data for a product as it passes from engineering to manufacturing. The data includes plans, geometric models, CAD drawings, images, NC programs as well as all related project data, notes and documents. A PDM also manages the interrelationships between the data so that when changes are made to one database, the effects are highlighted in the others. PDMs are developed for workgroups as well as the entire enterprise. See PLM.

(2) (Pulse Density Modulation) A modulation technique that generates fixed-width pulses to represent the amplitude of an analog input signal. Like its variable-width pulse width modulation (PWM) cousin, the output switching transistor is on more of the time for a high-amplitude input signal and off more of the time for a low-amplitude signal. PDM is used for audio signals in a variety of applications from cellphones to Sony's DSD (SACD) music format. See DSD, PWM and Class D amplifier.

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References in periodicals archive ?

By providing a one stage data transfer, PDM enables mainframe data to be extracted and then directly loaded into the receiving database.

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The speakers emphasized that PDM implementation is an evolutionary process, that the state of implementation must be evaluated continually in terms of capabilities and benefits, and that the decision to adopt a PDM-centric strategy also affects each company's suppliers.

INFORMATION TECHNOLOGY FOR ENGINEERING AND MANUFACTURING Gaithersburg, MD June 12-13, 2000

As the science of lubrication, tribology is the use of oil and wear particle analysis PdM tools.

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As for the future, CIMdata PDM market service manager Patrice Romzick says that in 1998 there will be more efforts on the parts of vendors to segment their product offerings, thus enabling customers to implement the technology more quickly and cost effectively.

More growth for PDM market, reaches $1.1 billion in 1997

Pikaart sees his first step being to implement PDM and see how much collaboration it provides.

Do small companies need PLM?

For example, in managing numerical control data with part designs, users and PDM vendors often had to jump through hoops; they either created a partition or folder in the database, or they somehow appended the process data to individual product items in the PDM.

PLM where product meets process: what PDM is to product, PLM is to process. Here's what the buzz is all about. (Engineer)