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Design Challenge Essay

  • Submitted by: harishsairam
  • on March 4, 2011
  • Category: English
  • Length: 283 words

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Below is an essay on "Design Challenge" from Anti Essays, your source for research papers, essays, and term paper examples.


In Embedded systems the designer must ofcourse construct an implementataion that fulfills desired functionality,but a difficult challenge is to construct an implementation that simultaneously optimizez numerous design metrics.
Common Design Metrics:-
      For our purpose,we are using microprocessor with an accompanying program,a connection of digital gates or some combination.Design metrics is the measurable feature of the system’s implementation.
Commonly used metrics:-
  * JPEG(JOINT PHOTOGRAPHIC EXPERTS GROUP):-Joint refers to the group’s status as a committee working on both ISO and ITU-T standards.
  * NRE COST(NONRECURRING ENGINEERING COST):-The one time monetary cost of designing the system.Once the system is designed any number of systems can be designed without any additional cost.
  * UNIT COST:-The monetary cost of each copy of the system,without NRE Cost.
  * SIZE:-The system required by the system,measured in bytes for software and gates for hardware.
  * PERFORMANCE:-The working of the system.
  * Power:-The power consumed by the system,which may determine the system lifetime.
  * FLEXIBILITY:-The ability to make the changes without heavy change in the NRE Cost.
  * TIME-TO-PROTOTYPE:-Time needed to built a working version of the system,which may be expensive than the final system,but it can be used to verify the system’s correctness.
  * TIME-TO-MARKET:-Time required to develop the system within the time and sold to the consumer.
  * MAINTAINABILITY:-Ability to modify the system after the system has entered into the market,especially by the designer who did not originally designed it.
  * CORRECTNESS:-Designing of the test circuitry to show that the designed system was good.
  * SAFETY:-The probability that the system will not harm.

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