redundancy

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In engineering, redundancy is the duplication of critical components or functions of a system with the intention of increasing reliability of the system, usually in the form of a backup or fail-safe, or to improve actual system performance, such as in the case of GNSS receivers, or multi-threaded computer processing.
In many safety-critical systems, such as fly-by-wire and hydraulic systems in aircraft, some parts of the control system may be triplicated, which is formally termed triple modular redundancy (TMR). An error in one component may then be out-voted by the other two. In a triply redundant system, the system has three sub components, all three of which must fail before the system fails. Since each one rarely fails, and the sub components are expected to fail independently, the probability of all three failing is calculated to be extraordinarily small; often outweighed by other risk factors, such as human error. Redundancy may also be known by the terms "majority voting systems" or "voting logic".

Redundancy sometimes produces less, instead of greater reliability – it creates a more complex system which is prone to various issues, it may lead to human neglect of duty, and may lead to higher production demands which by overstressing the system may make it less safe.

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  1. R

    QLD Withdrawal of Redundancy

    Hi LawAnswers, I was made redundant a few weeks ago over the phone effective immediately but no formal documentation or email was ever sent to me directly. An email was sent around to others in the company though notifying them of my redundancy. A couple of weeks later my employer calls saying...
  2. S

    NSW Not redundancy, not fired

    Seeking some advice: I have been employed with a company for 2.5 years. The first 1.5 years were great, gaining growth in my role and ticking along fine. The past 12 months have been strained due to some leadership changes. The CEO told me today that it's "no longer working" and I will be...
  3. G

    VIC Unfair dismissal / redundancy

    Hi, There's a reasonable amount of background to this, but essentially it boils down to this. I believe I have most likely been dismissed via redundancy because I had been pursuing a flexible working arrangement that my employer did not want to provide. I had been working for my employer in...
  4. K

    VIC redundancy consultation obligations

    What are the minimum consultation obligations at a university for making staff redundant? Could a less than 4 minute briefing and a 7 page change proposal be seen as fully satisfying the Universities consultation obligations under the EBA and Fair Work? Basically 5 positions in the fine art...
  5. S

    VIC s55 Fair Work Act (NES Protections) - EA reduces scope of redundancy scenarios but offers greater compensation

    As a result of a restructure there have been changes to my role. While the significance of those changes is a matter of dispute between myself and my employer, in the absence of the Enterprise Agreement they would certainly trigger a redundancy payment under s119 of FW Act (which only requires...
  6. M

    VIC Performance managed out and redundancy

    The centre I work at will close. A few months ago, my manager resigned as he was being targeted and performance managed out. He has missed out on the redundancy. I feel absolutely terrible for him as he worked with the business for a very long time, gave it his everything and missed out by a few...
  7. elial

    NSW Is notice period considered for period of redundancy pay?

    Is the notice period considered for the continuous employment period required for redundancy pay? E.g. an employee receives a notice of termination a day before they complete one year of employment. The notice period is one week. Would the employee be entitled to redundancy pay? What about if...
  8. D

    NSW Redundancy Pay

    Hi, Unfortunately I'm being made redundant after 20 years of working for a large corporation; the termination pay-out includes max of 12 weeks plus 5 weeks of pay in lieu of notice so all together 17 weeks - industry standards ; according to the HR manual dated from the year I've started (2001)...
  9. S

    QLD Do I need to accept contract extension to be eligle for redundancy

    My full time permanent position was recently being made redundant. I accepted a transfer of employment to a temporary position with an indicated end date. The letter mentions that I am eligible to a redundancy payment should no further extensions or the date be available or redeployment. I am...
  10. S

    WA Rehiring after Redundancy

    Following a company restructure, a management role I was performing will cease to exist and I have been made redundant. I finished up last week and am waiting for my severance pay to be credited. Although the management role will no longer exist, there are vacancies in the team I was managing...