iSixSigma

Waskita

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  • #162862

    Waskita
    Participant

    Gee…can’t believe such song really exists.
    Thanks Darth, you really make my day! Very entertaining ….

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    #162807

    Waskita
    Participant

    :)
    As mentioned, no offence my friend…..My apology for the words chosen in my previous post.
    However; you must be joking when saying Sumant’s comment is the only one closer to the answer. The very first reply from Crazy Guy was short yet sharp, precise, and right to the points as well as others who also tried to assist.
    Anyway, glad to se that you personally think you have understood the answer (at least closer as you said) …..though i still doubt it ;)

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    #162804

    Waskita
    Participant

    Nicoela,
    I am working in theonly hotel industry that embrace Six Sigma for process improvement, called Starwood. I’ll be more than happy if i could be an assistance to your queries. Just drop me an email in person pls ….

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    #162803

    Waskita
    Participant

    GKP
    You are a trully  funny person. No offence but you’re very funny indeed. I just read this topic from the first thread and laugh all the way to the end reading your Qs. All the colleagues in this forum have tried their best to give answer from a very simple way; yet you still don’t understand …not to mention if someone provides some statistical term/formula …you’ll be even more confused.
    Again no offence, but it is you who is the barrier to understand the concept since you don’t have basic statistic knowledge at all. Do a little study first on statistics or if you still prefer a shortcut as you keep on insisting, then come to my home and i’ll explain it to in person with graphics + coffee + crackers …haha. I mean it though!

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    #156335

    Waskita
    Participant

    No Harish …
    You’ve misunderstood messages fr all who have contributed in this topic.
    No one said implicitly/explicitly to wait  longer just to get a baseline. What they did was just trying to provide their technical expertise on how to get proper baseline in order to arrive at a proper conclusion
    What past is past ….If  you only 10 data points to reflect current performance, then be it! Don’t wait any longer to start improving. Along with times if the improvement actions makes a significant difference, the data will speak for itself.
    Cheers,

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    #156305

    Waskita
    Participant

    it could be your operator not well trained, thus not being able to catch defect accurately ….it could be the environment issue (dust count particle need to control to prevent from being easily dusty and make inspection even more difficult) ….it could be due to lack of inspection kit ….or why bother inspecting? why not preventing defect from happening at the first place? …..etc
    The best solution for your problem is to start doing your own DMAIC project on this visual defect improvement. Good luck!

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    #156295

    Waskita
    Participant

    John,
    Visit the following link where you can find all about CpK, PpK
    http://www.qualityadvisor.com/library/capability_FAQ.php#difference_between_Cp_and_Pp
    Good luck!

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    #156290

    Waskita
    Participant

    Glad that you implicitly admit your mistake Gary ;)
    Coz the word “non sense” leaves a strong impression that the possibility for higher SD is almost zero when n is low.
    43% of the time is huge man … though it should be even higher if you do proper data collection.
    Again, good discussion.
    Thanks for the education and also keep on learning buddy!

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    #156242

    Waskita
    Participant

    Good discussion but too bad ….. bad choice of words.
    I believe Gary is a master in Six Sigma but it will be best if you don’t close your minds to any possibility.
    Non-sense? Sure or not? …
    Simply from SD formula =((x-xbar)^2/(n-1))^0.5 ….we can straight away see that the lower the n (number of samples), the smaller the denominator, and bigger SD value will be derived. Simple math!
    But ofcourse it also depends on how widely spread the data is distributed (x-xbar) that will affect the final SD result.
    I just took a real data on hotel room rate for certain period of month (n = 1517) and take randomly 10 data points for room rate value. Well … sorry to say but SD derived for 10 data points is bigger.
     
     
     

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    #156236

    Waskita
    Participant

    Agree and disagree for point#1. The best answer is actually : it depends.
    Amounts of benefits/opportunity will depend of types of industry we’re talking about. If we’re talking about hotel industry for example, many opportunity for process improvement will result in increased guests’ satisfaction (soft saving) despite some other projects that could also deliver hard saving.
    Even if we’re comparing 2 manufacturing companies which are about to start deploying 6 sigma, the opportunity lies in front will depend on the scale of the organization,product volume, cost of product, etc
    Bottom line, i’m a believer that opportunity will always be huge for any organization at deployment phase on six sigma but opportunity is not always about $$$.
    The more matured an organization in six sigma deployment, the opportunity will be even tougher coz we’re no more talking about removing tips of the iceberg.

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    #156230

    Waskita
    Participant

    Harish,
    I agree with Dave that with 10 data points, your confidence level will be very low. Thus; the conclusion withdrawn could be misleading since u don’t have enough data.
    Below are some bullet points that could practically be useful for your project :

    High SD for 10 data points is self-explanatory and very much expected. Thus; …. before constructing your base line, i suggest that you should first understand your data. Is there any outlier which is clearly visible from the run chart even without constructing control limit into the chart?
    If yes, i strongly believe that it was due to a special cause and your job is to find out what could possibly be the cause as it will give a hint of some “low hanging fruits solution” that you could easily get.
    My suggestion is to remove the outliers from the data points no matter what the cause is, coz it will give a wrong understanding about your baseline. 
    Once done properly, then you can now simply use the average figure of the remaining data points to derive a baseline.  Control limit built from SD will also be more reliable despite the minimum number of data points available, since the outlier has been taken out.
    When interpreting whether your improvement action items make a significant difference against the baseline, i personally suggest to still use 3SD for the control limit (remember : using base line data, even if you did nothing ….>99% of the future result will fluctuate within +/- 3 sigma bandwidth)
    Hope it helps …

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    #64408

    Waskita
    Participant

    Hi Foggy,
    Lots of people are still mixed-up with the definition of CTQs.
    To me, what u mentioned below is VOC (Voice of Customer).
    Often times, VOC is very qualitative and it’s our challenge on how to quantify what the customer want sothat we can measure in future whether or not we can fulfill what they want.
    Then, only when u address those VOC to your process pipelines and identify specific things in your process that will affect the VOC, it will become your CTQ.
     

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    #141213

    Waskita
    Participant

    Points noted and you’re 100% right hacl …
    Six sigma is not abut counting defects nor number crunching, but how to make a difference in reducing variation in the processes.
    However; nothing wrong either of being curious on some theoritical behind all the numbers as not all people may be aware of.
    Cheers,

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    #141209

    Waskita
    Participant

    Hi GWG …
    I believe there’ve been many suggestions given on how to start setting-up Six Sigma, which consulting company to use, tips to do once a consulting company is selected, etc …
    However; I’m wondering whether it is really the answer you are looking for.
    Coz i have a feeling that you may have been trained Six Sigma before, and you are now asked to start setting it up in the company with you as the only resource … Hope I’m wrong, just a thought though …

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    #141207

    Waskita
    Participant

    Hi K Shams …
    Your question is not specific. The best persons to answer your questions is you and your operators … no one in this forum understand your process better than you.
    But you may start by understanding which type of damage/defect is the most common  in your factory. Pareto is a tool you can use to help …
    Then things will develop fr there by embracing DMAIC method …hope you know what it means and how it works …
     

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    #141201

    Waskita
    Participant

    Hi Abhi …
    Thanks for your input. I’ve just sent via email as per your request on how to get ppm for different level of sigma.
    I have no bad intention at all by not sharing/posting the explanation in the forum since there are varieties of six sigma skill in this forum. Those who are already expert may find it too basic for them which may not be the case for the others.
    Besides, there are some illustration through pictures which can’t be accomodated through posting in this forum.
    So, drop me an email for the rest who’re interested. It’s just a 30 secs job for me to forward what i’ve sent to Venkat earlier …
     
    Cheers

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    #141052

    Waskita
    Participant

    You’re right Hans ….
    Sorry if i might be to pessimistic.
    But again, it really depends on our definition on a defect. If defect in airplane industry when talking about landing or take-off process is defined as no accident happen that can risk passanger’s lives, yes ..i agree it can be classified as more than six sigma performance. But if we can afford to drill down via survey, questionairre, etc what customer/passanger really expects during landing and take-off that it should be totally smooth, no significant vibration, etc …it may not be at six sigma performance level.
    Food for thought though ….In summary, yes you should be perfect or more than six sigma level when the risk involved is life. But ensure your operational definition is in line with the VOC
    regards,

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    #141041

    Waskita
    Participant

    Venkat …
    You must be joking, right? Tell me you are ….
    I have never seen a process operates at 6 Sigma Level, not to mention 7 or even 10.
    6 sigma can be considered as a long term goal that we need to strive for i.e near perfection.
    The essence of the message by putting 6 sigma as the slogan is that for us to always continously improve.
    I’m more than happy to explain to you on the calculation  how we derive 3.4dppm for 6 sigma, also for 7 sigma, 10 sigma, 6.452 sigma, 5.001 sigma, etc. Just name it …
    Drop me an email if you’re interested to [email protected]
    But before you ask and send email, make sure you have a basic knowledge on normal distribution and how to read normal distribution table. Or else, it will be hard for you to imagine and understand what i mean
    Ciao
     
     

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    #141001

    Waskita
    Participant

    You can create your own statistics using GR&R.
    Repeatibility and Reproducibility. That’s why this concept was introduced, to assess how good a measurement system is.
    Personally, statistics fr other people who may be at the other part of the world doing same hand count inventory method could mislead you coz you may not count the same animal, not to mention human nature which tends to differ over countries, continents, etc
    Thus; create your own statistics by doing GR&R. That’s the best answer to your qs

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    #140947

    Waskita
    Participant

    Hi Namrata,
    I’m sure no one in this forum will provide you the best and exact metric to your problem.
    Always back to the VOC concept.
    Ask yourself who are the customers for your e-learning organization?Find out fr them what’s important for them from the customer’s perspective. If the feedback is qualitative, find out a way to make it quantitative and convert into your CTQ. When doing so, don’t do it alone but involve your team members (sometimes involving your customers as team members is best). Do a trial run based on the metrics (CTQ measure) that you’ve come-out. Has the improvement made been reflected in any of those metric (CTQ measure)? If not, it’s always right to revisit your measure even you’re already in improve phase until you get the right ones.
    Good luck!

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    #140945

    Waskita
    Participant

    Hi Rahul …
    That’s a very interesting question that i’ve never thought before but it’s true.
    But I would personally think it does not have any thing to do with Six Sigma but more towards business strategy to have competitive positioning in the market with some financial/cost considerations and VOC that justify the decision.
    It’s a totally different scenario with other beverage in plastic bottle for example where the default size in the past is either 1.5L or 600mL. Nowadays, lots of new designs come-out with different volumes as well e.g 500mL, 400mL, or the smallest i’ve seen is 250mL which is basically a portofolio to attack different market segment. What i mean by that is because once it’s consumed, the bottle can still be used for other purpose e.g people normally use 1.5L to contain their tap water inside fridge, smaller ones you can use to put inside your bag when travvelling, go to school, etc. That’s why design also plays a role in the buying decision.
    What about canned drinks? Once you consumed it, the can is no used but to throw away. That’s why people won’t take risk investing their money to introduce smaller sizes that won’t affect buying decision. However; design of the can, tastes, brand positioning may be the critical factors for this type of product
    Sorry for the long explanation, just my 2 cents opinions though ..Perhaps others have different opinions that i’m also interested to know …

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    #140936

    Waskita
    Participant

    This is a very classical issue in mfg that everyone tries to pinpoint at one another.
    Below is powerful tools that you should do :
    1. Send your personnel to your supplier. Together with the supplier staff, do a proper MSA on the outgoing machine which is said to be 100% error-proof.
    2. If it’s not proven, then you can omit your supplier from the list of possible causes. The do a thorough process mappin to identify the most contributing areas to the defects encountered.
     
    For all above, make sure you use consistent defect criteria to judge good/bad product
     
    Good luck!!

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    #140867

    Waskita
    Participant

    Simulation game that relates to the current process where audience works at, seem to always work.
    Yet; not sure if it can be done effectively within 1 hour max.
    Normally, you need to run few rounds for them to understand the frame of mind you want to set for them which would take approx 3 hours.
    Just my one cent opinion.  Good luck finding one!

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    #140849

    Waskita
    Participant

    Hi Milton and Boambb,
    I  noticed that you 2 have some personal issue with each other which you then post in public. At the end of the day, you both are not assisting nor giving answers to the persons seeking for help.
    Would suggest to have private mail to each other to settle the problem in future.
    Eugene …
    As to your qs, i think you’re on the right track.
    For a process which are still fire fighting, there so many low hanging fruits that you can pick. simply by using basic tools like pareto, fishbone, and FMEA, i strongly believe you will gain much.
    Once the sigma level is increased and still you want to make further improvement, then some advanced tools may need to be used. Can’t really suggest what they are depending on the nature of your process/projects. Could be DOE or other tool
     
     
     

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    #140848

    Waskita
    Participant

    Hi Mike ..
    Before you eliminate that process, you need to be really sure that that process is NVA to the product and the impact to the customers. Dig out some info fr the past coz for example, inspection is a NVA but certain fussy customers have ever specifically mentioned to have that in place in the process pipeline.
    If it is giving value, then the solution is to fix the instability and incapability of the process not to eliminate the process.
    and if you’re looking for a format to make it effective, go back and read your training material hand-outs during BB training. I’m sure they taught you the DMAIC steps. Just use the DMAIC steps properly coz that’s all you need.
    Good luck

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    #140847

    Waskita
    Participant

    Hi Saturo,
    Just an opinion pertaining to your query
    There are various cost saving template around but the most important thing is you should understand properly what are the appropriate key measures you want to keep track. SIPOC will be a good start to do sothat you could come-out and classify those key measures into input, process, and output key measures. To me, taking care the process key measure is the most crucial coz by doing that, the output measure will take care for itself.
    After all above measures, then you can create your own template with some charts/graphics, translate into financial impact, etc as you wish to make it more colourful and impress your boss, colleagues, etc
    Hope it helps….I’m sure Darth will provide a much better guides on this

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    #140803

    Waskita
    Participant

    Priti
    I don’t quite get it.
    First you mentioned u were looking for project selection criterias, but then in your 2nd msg it seems you’re in the midst of doing analysis already.
    If customer complaint is the main issue you want to tackle, you may  start doing process mapping to identify where things went wrong. It will be good if at the end you have the luxury to tackle all the contributing areas. If not, pareto will surely help to prioritize based on the key measures data collected.
    Good luck!

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    #138598

    Waskita
    Participant

    Guess you’re all right.
    Just realized that i might misinterpreted the word idiot which turns-out to be someone’s name which is also supported with my past reading on Darth’s comment on some topic in the past. My apology for that …
    Let’s not make this topic long as i already admit as above ….Cheers

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    #138584

    Waskita
    Participant

    DARTH!!! ..I’ve noticed few times that you’re always being rude to pople’s questions but you never actually provide any satisfactory answer nor assistance to the problems.
    What you know is only to post a sarcastic reply, embarasse others asif you’re smart.
    I tell you what, you are the one who is IDIOT who knows nothing about Six Sigma. Thus; you don’t deserve to participate in this forum. A Six Sigma idiot like you plus sarcastic personality makes you deserved to be called “A DUMB-ASS”, Six Sigma Dumb-Ass at least …hahaha

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    #134996

    Waskita
    Participant

    Easy question, tough answer ;p
    The way to answer this is to work-out probability tree diagram.
    This way, it would derive you to a conclusion that the probability of passanger#100 sits in his proper sit is :
    = (1/100) + (99 x 99 x (1/factorial 100))
    = 0.01 + 0.0000000000000…..
    = approx 0.01

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