Durability and Reliability. What is the difference? - The Elsmar …
2009年6月19日 · However, there is an enormous program to design, engineer and manage reliability in items that perform physical/virtual functions. This includes mechanical (physical movement and wear from its friction), signal (data transfer in sound wave or through circuitry) and electrical, which may have finite lifecycles from use of the item.
Reliability Definition - A Discussion thread - The Elsmar Cove …
2006年1月11日 · See the following discussion thread in the Elsmar Cove Definitions, Acronyms, Abbreviations and Interpretations forum: Reliability Definition Also see (and add to or change) the Elsmar Cove Wiki Reliability Definition
Definition - Reliability - Definition(s) (quality assurance related)
2006年1月11日 · Reliability - The ability of a system or component to perform its required functions under stated conditions for a specified period of time. The trustworthiness to do what the system is expected or designed to do. Reliability metrics include the following averages: POFOD (probability of...
Definition SPQL, EFR, FITS and IFR - Seeking Definitions for
2004年10月19日 · Failure In Time (FIT) method of specifying component reliability. The FIT rate is defined as the expected number of component failures per 10^9 (ten to the ninth power, or 1,000,000,000) hours. The FIT rate can be converted immediately to the MTBF (Mean Time Between Failures) in hours as MTBF = 10^9/FIT.
AQL (Acceptable Quality Level) vs. IRR (Initial Reliability …
2011年4月13日 · Where can I find a source that explains the correlation between AQL (acceptable quality level - like 1.5) and IRR (initial reliability requirement - like 95%) in acceptance sampling? It seems I remember coming across a cross-reference chart at some point some years ago, but I can't remember where.
Defining Reliability and Confidence Levels - The Elsmar Cove …
2014年3月2日 · Remeber that Reliability (in the context of sampling plans based on a stated reliability at a stated confidence level) has a very specific definition: it is the minimum acceptable quality level. OR better stated it is 1-the defect proprotion that you wish to reject. These plans typically require no defects in the sample.
Definition Lifetime of the Medical Device - What is the most ...
2019年6月22日 · Keep in mind that, if the manufacturer specifies a 5 year lifecycle (it´s the common word used, not lifetime), and you act on the device past this date, for some regulations you´ll be the new manufacturer of the device and will have to comply to regulations (and also define a new expected service life)
DEFINITION • A methodology to analyze and discover: (1) all potential failure modes of a system, (2) the effects these failures have on the system and (3) how to correct and or mitigate the failures or effects on the system. [The correction and mitigation is usually based on a ranking of the severity and probability of the failure]
List of Reliability Standards - The Elsmar Cove Quality Forum
2006年1月11日 · MIL-STD-721C Definition of Terms for Reliability and Maintainability This standard defines terms and definitions used most frequently in specifying Reliability and Maintainability (R & M). Provides a common definition for the Department of Defense and defense contractors. MIL-STD-756B Reliability Modeling and Prediction
ISO 13485:2016 Complaint Definition Clarity - The Elsmar Cove …
As per ISO 13485:2016 section 3.4: complaint Written, electronic or oral communication that alleges deficiencies related to the identity, quality, durability, reliability, usability, safety or performance of a medical device that has been released from the …