iSixSigma

FMEA for IT

Viewing 48 posts - 1 through 48 (of 48 total)
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  • #26781

    JPB
    Participant

    Is anyone aware of standard ratings for severity, occourance & detection for use in IT?

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    #65009

    Marc Richardson
    Participant

    To answer succinctly, no. However, I would start with the Automotive Industry Action Group (AIAG.org) FMEA Manual, which does contain the rankings for automotive manufacturing, and do a little thinking about the parallels between manufacturing a product and doing whatever it is you do, whether it is developing software or providing IT services. It should be relatively simple to convert their Severity, Occurrence and Detection rankings into something you can use.
    Marc Richardson
    Sr. Quality Assurance Eng.

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    #65011

    Stephen Curtis
    Member

    You could try the following;SeverityHazardous without warningVery high severity ranking when a potential failure mode effects safe system operation without warning10Hazardous with warningVery high severity ranking when a potential failure mode affects safe system operation with warning9Very HighSystem inoperable with destructive failure without compromising safety8HighSystem inoperable with equipment damage7ModerateSystem inoperable with minor damage6LowSystem inoperable without damage5Very LowSystem operable with significant degradation of performance4MinorSystem operable with some degradation of performance3Very MinorSystem operable with minimal interference2NoneNo effect1ProbabilityPROBABILITY of Failure Failure ProbRankingVery High: Failure is almost inevitable>1 in 210 1 in 39High: Repeated failures1 in 88 1 in 207Moderate: Occasional failures1 in 806 1 in 4005 1 in 2,0004Low: Relatively few failures1 in 15,0003 1 in 150,0002Remote: Failure is unlikely

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    #65012

    Donna Durlak
    Participant

    Those FMEA rankings look good.  Have you used them on projects?

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    #65013

    Stephen Curtis
    Member

    A couple, but that was some time ago! 

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    #65010

    Luiz Carlos de Oliveira Jr
    Participant

    I’ve been using Automotive Industry Action Group (AIAG.organization) FMEA Manual also for Telcommunication purpose. It can be a start for yr application.
     
    Luiz Carlos
    NPI & LCM

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    #65035

    Jeremy Green
    Participant

    First of all I’d want to know what type of FMEA you were wanting to conduct, system, design, process, or machinery/equipment.
    A good reference source is Stamatis, D.H. 1995. Failure Modes and Effects Analysis. Milwaukee, WI: ASQ Press.  It discusses system, design and process FMEAs and has a chapter on Computers: Harware and Software.
    The best reference source for equipment FMEAs is: Givens, Gary R. and Sroka, Kenneth J., 1996. Machinery Failure Modes and Effects Analysis Handbook. Ford Motor Company,
     
     

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    #65018

    Joaquin Molina
    Participant

    The detection ranking tables should be based on FMEA third edition.
    it is obsolete
    please updated it
     

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    #65022

    Mario
    Participant

    AMEf

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    #65023

    Stephens
    Participant

    Stephen,
    Thanks for posting the severity scale…that’s exactly what I was needing! You’re the best. Take care,
    Craig

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    #65027

    T.Venkateswara Rao
    Member

    This FMEA article is very good. It would fine if it explains by taking one example doing FMEA from Define phanse to Verify phase.
    Thanks
    T.Venkateswara Rao.

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    #65036

    kam
    Participant

    there is very few example for system FMEA except for the IT industry,  is anyone has known any S-FMEA examples for manufacturing Process or product Development Processes? Please kindly tell me.

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    #65037

    Ropp
    Participant

    SAE wrote an excellent guide on system, interface and detail FMEAs that shows the reader how to coordinate a complete design and development effort.  It is called ARP 5580.

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    #65038

    Yury
    Member

    Hello,
    I’m new to the Forum, my first question is..
    does anybody has references for FMEA implemented in IT department inside health industry organisation? Is it applicable well or that should be changed to newer standards like ITIL, ISO-17799?
    some links: http://www.iso-17799.com, http://www.itil.co.uk, http://www.bsi-global.com, http://www.itsmf.com/bestpractice/sourcebp.asp
    Thank you and regards,
    Yury
     

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    #65028

    Biju. T
    Participant

    Which of the above factor ( Severity, Occurence,Detection) is difficult to improve & why?

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    #65029

    Mikel
    Member

    All of them are difficult to improve. This improvement game is tedious and detailed. There are no easy answers.

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    #65030

    Nitin Sahni
    Participant

    biju – In process FMEA’s, first priority is given to reduction in Occurance ratings
    Severity Reduction requires Design chanes (heavy on resources and time consuming) and reducing detection rating is getting ito reactive mode.
    Hope this helps….

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    #65031

    John J. McDonough
    Participant

    Biju
    At 50,000 feet, I agree with Nitin.  But in the real world, these things are dependent on what the actual risks are.  Sometimes a problem only becomes severe because you can’t detect it, and improving the detection is frequently very easy.  Other times you might not be able to affect the occurrence, and your only choice is to bite the bullet and do something to reduce the severity.
    These tools are only tools, we still need to apply a heavy dose of common sense to decide how to interpret them.
    –McD

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    #65024

    kiran
    Participant

    What is the difference between Failure Mode, Failure Cause and Failure effect ?
    What is safety FMEA?
    Cheers
    Kiran
     

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    #65025

    Mike Carnell
    Participant

    Kiran,
    Please review the following post:
    https://www.isixsigma.com/forum/showmessage.asp?messageID=55194
    Good luck.

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    #65026

    kijana
    Participant

    Failure Manufacturing , Failure Engineering  and Failure Autcome
    Cheers !  

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    #65032

    Shanmugavel. P
    Member

    This is a great pleasure to view this IT FMEA. Because till yesterday we were thinking how we can convert this FMEA (which is purely assigned to automobile industry) into IT industry and we had assigned resource to do this job. Now we have got the Severity, Occurrence and Detection details which is published in this site. Definitely this will be very much helpful to our organization.

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    #65019

    mohssen
    Participant

    HELLOW SIRS
    please send me any information  about detection number in FMEA.
    thanks a lot.
     

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    #65020

    mjones
    Participant

    Presuming you are using a scale of 1 – 10: A low number of 1 means you will detect the failure virtually every time it occurs and you will have ample opportunity to prevent your customer from ever seeing the failure. A middle number of 5 means you will detect it about half the time; a high number of 10 means you will rarely detect the failure and you will deliver virtually all of them to your customer. Numbers in between reflect relatively similar risks/expectations.

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    #65033

    jojo
    Participant

    Dear Stephen Curtis,
       Need to know more about your post message-
    * PROBABILITY OF FAILURE-High :Repeated failures-1 in 8
    how do we get this clear information.
    please email me: ( [email protected] )

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    #65039

    Helper17799
    Participant

    Just to point out that iso-17799.com is currently moving to http://www.17799central.com
     
    On the wider point for this standard, a new perhaps more relevant development is the publication of ISO 27001, which can actually be certified against (unlike ISO 17799).
     
    For information on this you could take a look here: http://17799-news.the-hamster.com/breaking-news-2.htm
     
    Hope this helps.
     

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    #65034

    Benny
    Participant

    entuk dab!!!!!!!!!!!!!!!!!!!

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    #65014

    Muhammad khawar Ashraf
    Participant

    FMEA is such a nice TECHNIQUE so i have decided to take my M.SC ENGINEERING MANAGEMENT THESIS in it.Please suggest me on in which category i should have to take thesis because application of FMEA is an many field,so please response will much better better if any one who already implemented that system in his/her organisation.Waiting for your good and early response
    by MUHAMMAD KHAWAR ASHRAF
    (MECHANICAL ENGINEER)

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    #65015

    Koh Hee Hwa
    Participant

    Thanks a lot.
     

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    #65016

    grover
    Participant

    plz send me through my e-mail: [email protected]

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    #65040

    Talaid
    Participant

    Hi Friend,
    No std rating for IT. Me in LED manuf , I have to make one using the Ford FMEA tables as a guide.
    andy

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    #65021

    Talaid
    Participant

    FMEA Third Edition is latest for TS16949. It is not out of date . Perhaps you need to customised for your inductry to reflect your manufacturing . I ndid mine for lED manuf.
    andy

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    #65017

    Pingala
    Participant

    I think the value for “probability” is less than or equal to 1. So, we should not the term probability. But, we can use the term “occurance chance” between 1-10 for FMEA analysis.

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    #65041

    Dixit
    Member

    A standard Table is available.If required post a reply

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    #65042

    khumbutrekker
    Participant

    Hi Vijay,
    Can you send me the fmea standard table? Here’s my email :  [email protected]
    Thanks and regards.

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    #65043

    pavan kumar chakravarthy
    Participant

    Hi,
       Can i get an example of FMEA.Like how to measure FMEA for a Industrial Reactor or some major epquipment.
    my mail add is – [email protected]
    Thanks
     

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    #65046

    surekh
    Member

    please send me the standard table at [email protected]
    Thanks,
    Surekh

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    #65047

    Jayne
    Participant

    Thanks for the links Yuri. Some of them have changed though:
    http://www.iso-17799.com has gone to http://www.27000.mobi because the standards has been renamed to ISO 27000
    http://www.itil.co.uk has gone to http://best-management-practice.com because ITIL has been devolved.
    These still seem to be the dominant standards/frameworks in the arena.
     
     

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    #65044

    dave lindsell
    Participant

    Does anyone have an fmea template that they could forward to me that captures Occurance/Severity/Liklehood, I am now completing my Lean Green Belt Project.
     
    Many thanks in advance for any support
     
    Dave

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    #65045

    dave lindsell
    Participant

    Does anyone have an fmea template that they could forward to me that captures Occurance/Severity/Liklehood, I am now completing my Lean Green Belt Project.
     
    Many thanks in advance for any support
     
    Dave

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    #65050

    david Lindsell
    Participant

    Brandon,
     
    Many thanks for taking the time to respond to my question

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    #65069

    KL
    Participant

    Hi
    IS there a logic behind the scale of ratings for severity , occurence and detection ????
    Can it be limited to 1-4-7-20???
     

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    #65071

    Don Strayer
    Participant

    Yes!  If you use 1-10 but you cannot consistently explain the difference between 7 and 8, for example, your scale is too granular and may give deceptive results.  Typically the ratings in an FMEA are not actual measurements and a scale such as 1-4-7-10 will give you more accurate results.  Your educated guess may become a wild guess if you’re trying to decide between 7 and 8 but you can be more confident about choosing bewtween 7 and 10.  Also note that an FMEA is best done as a team activity.  A less granular scale is better able to exploit the collective knowledge of the team and to avoid time wasting discussions to resolve subtle differences.

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    #65075

    Sinnicks
    Participant

    Hi all.
    I have been reading this thread with interest.
    I work within Availability Management and strive to predict the reliability/availability of the service (eg VoIP), Identify SPOF’s, critical items, raise any potential site failover risks and predict frequency of Severity Level Incidents.
    I have been using a modified version of MIL-STD-1629. I chose this because of my Aerospace Reliability/Availability/Maintainability/Safety background. It was a great standard to use for guidance, but as with the Six Sigma version, it only deals with single failures. This only does half the job and had to be adapted to make it more credible and add value in the service management and service delivery domain.
    Instead of using criticality, I have tended to use Failure Mode MTBF, because to the execs, this can be measued against for validation. A criticality value between 1 and 10 cannot be used as metric. Also it give service support something to work with when it comes to providing network support and for planning Changes.
    My comment is basically that you really have to work out what it is that you want to get out of the FMEA/FMECA/CFIA and what value the extra work of calculating a criticality in the traditional way is actually bringing.
    I would appreciate comments, thoughts and feedback as I am still developing this.
    We are alo looking to set up an Availability Special Interest Group in the ITSMf (http://www.itsmf.co.uk/) work space if anyone is intersted.
    Please let me know at [email protected]

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    #65258

    Sachin Desau
    Member

    Can someone share Severity, Occurrence and detection guidelines used in IT firm?
     
    Pl. e-mail me : [email protected]

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    #65259

    MrMHead
    Participant

    It’s earlier in this thread, which is referenced through Tools & Templates on the left.

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    #65261

    sachin D
    Member

    Thanks MrMHead, i have refered to the same but did not realy able to apply to my requirement. Am trying to use for Causal analysis & Resolution which is one of the Process area in CMMI Model.

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    #65262

    Don Strayer
    Participant

    FMEA helps identify and prioritize but you really need additional tools to do the causal analysis.  Search this site for “causal analysis” and you’ll find several entries that discuss using SS tools for CMMI causal analysis.

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Viewing 48 posts - 1 through 48 (of 48 total)

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