iSixSigma

Out of Control

Six Sigma – iSixSigma Forums Old Forums General Out of Control

Viewing 7 posts - 1 through 7 (of 7 total)
  • Author
    Posts
  • #45746

    Agnes
    Participant

    Can/Should you try a six sigma improvement on a process when you suspect that the process SOP is not even consistently adhered to? In my understanding, if SOP is not adhered to, the process must be out of control. And out of control processes are not good candidates for DMAIC style six sigma improvements. Am I thinking right?

    0
    #150178

    BTDT
    Participant

    Agnes:One of the big improvements with process mapping is that people are hesitant to document a process that is poorly controlled, and things may improve just be having the team focus on it. They may admit this at the time and can help you answer the question, “Why don’t you follow a single process?”Different groups and experts may be able to help design a new process or modify the old one such that the different groups have, at least once, agreed as a team, and voiced their respective opinions.Another possibility is that there is an attempt to use a single process for two or more different products or services. During the Improve phase, you may find that it is best to have a decision point that streams the customers into two different, but related subprocesses. This is common in medical triage. For example, you can have high risk and low risk accounts, new customers and returning customers.You can still establish a performance baseline and an improvement goal. It sounds like a good project.Cheers, BTDT

    0
    #150183

    BritW
    Participant

    Suggest flowcharting the existing process and determining the variances from the SOP.  In some cases the variances by some are actually better than the first standard.  Also will help you to pinpoint the variation point(s) in the process.  Another thing to look for is the age of the SOP – I worked at a steel mill in the 80’s that had 1960’s SOPs which in most cases no longer applied.

    0
    #150184

    BritW
    Participant

    About control – you can still use the DMAIC process with an out of control problem (although it might be wise to start with some simple lean tools to settle it down first.)  The only real issue you get into is the use of some of the statistics.  I have successfully used it with out of control processes.

    0
    #150187

    Fontanilla
    Participant

    (although it might be wise to start with some simple lean tools to settle it down first.) 
    What crap !

    0
    #150189

    Savage
    Participant

    Please elaborate Dan.

    0
    #150190

    The Force
    Member

    When you come up with KPIVs or X variables, you will categorize these as SOP, Controllable, Non-Controllable — For SOPs, you can immediately have a Go-Do-It approach or Quick Hits then have some Six Sigma projects on Controllables wherein root cause and solutions are not known

    0
Viewing 7 posts - 1 through 7 (of 7 total)

The forum ‘General’ is closed to new topics and replies.