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Practical Problem Solving

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Presentation on theme: "Practical Problem Solving"— Presentation transcript:

1 Practical Problem Solving
Training Deliverable Understand the tools used in Problem Solving Be able to apply tools to identify Root Cause Identify Containment and Countermeasures Fully complete a PPS Document to detail the logic for conclusions

2 Problem Solving Highest Quality Lowest Cost
Continuous improvement Human centred work Just In Time Built In Quality Standardisation Problem Solving Visual Management 5 S T P M

3 Quote “The best way to predict the future is to invent it.”
If YOU think it CAN’T be done, You are right. If YOU think it CAN be done, YOU are right. Henry Ford “The best way to predict the future is to invent it.” Peter Drucker

4 we never made any mistakes”
Overview New Problems Are Improvement Opportunities Repeat problems are a failing in the way that we manage the business. “ We learn much more from the mistakes we make and the problems we overcome, than if our life contained no problems and we never made any mistakes” The tools studied to date strongly support creating the standard, lowering the water level, and communicating issues visually, physically and verbally. When issues become transparent as we progress through implementation, the need to rectify the issues grows.

5 Overview Key Points: Problem Solving only looks at process Not people Problem Solving requires an open mind Use only facts and numerical data to guide you Problem Solvers will ask “The Experts” to gain the information and the understanding required to find the real cause Never assume, don’t use your expectations. “Go & See” Try to avoid, “We’ve had this problem before” NOT a blame culture as this stifles honest and open communication IF YOUR CONCLUSION OR ROOT CAUSE = A PERSON THEN YOU’VE GOT IT WRONG!

6 Flowchart for Problem Resolution?
Is It Working? Don’t Mess With It! Don’t Mess With t! Did You Mess With It? OOOPS! Will It Blow Up In Your Hand? Anyone Else Know? That Could Be A Problem Can You Blame Someone Else? Hide It! Look The Other Way NO PROBLEM!

7 Problem Definition A problem is anything that deviates from the standard or expectation. Level CHANGE CHANGE Good practice to record change on visual tracking Three main factors to consider: The standard The deviation away from the standard Time elapsed Deviation Time The deviation from the standard enables us to gauge/determine the size of the problem The time factor enables us to determine history/trend

8 Problem Resolution vs. Kaizen:
Kaizen Standard Level Problem Resolution What is my tolerance on trend? Escalation procedure? Review? Support? Time Problem resolution achieves the standard / stability Kaizen improves from the standard condition

9 Grasp the Situation / Causation Processes:
Base Upon Facts / Data Data should be available through effective communication structure Check Sheets Simple 5 bar gate system to capture number / type Pareto Analysis Prioritisation of concerns / % of total issue SPC Statistical Process Control Trend / control within upper and lower parameters / tolerance

10 Do Not Accept Do Not Make Do Not Pass
If you always do what you’ve always done you’ll always get what you’ve always got “Insanity is doing the same thing over & over again & expecting different results.”

11 8 Steps To Practical Problem Solving

12 Method Containment Countermeasure The 3 C’s Confirm

13 No Gimmicks Proven method over time developed by one of the most successful companies of our time. No frills Simple Lean Rooted Kaizen Boosting

14 Mind Over Matter Facts Data Experience Common Sense Are all used to form Logical and Rational Solutions to your organisation's problem and objective.

15 What’s The Problem? First things First…
Define what your organisation Considers a Problem Gap between the actual condition and desired condition Any deviation from the standard Any unfilled customer needs

16 Problem Description STEP 1
Understand what the problem is and why it is a problem This will be a generic description of the problem Go Look See or go to the Gemba (Real Place)

17 Clarify The problem STEP 2
Time to get a more detailed understanding of the problem From the data provided break this down into more specific detail Study and analyse inputs and outputs of the specific process

18 Overview STEP 3 Identify where the concern is happening within your process Introduce a containment to prevent the concern escaping 100% inspection – what are the risks? Ensure the customer is aware of the method of containment identification Monitor containment utilising PDCA cycle

19 Identify The Possible Root Causes
STEP 4 Identify the Factors that could have caused the concern Generally more than one Consider and add all of the potential Root Causes

20 Analyse the Root Cause STEP 5
Using why investigation Identify the actual Root Cause of the problem

21 Develop Countermeasures
STEP 6 Teams develop Countermeasures to remove the Root Cause Open Communications vital during implementation Seek Ideas and Feedback to see what is and isn’t working Focus on One Countermeasure at a time to effectively monitor them

22 Implement Countermeasures
STEP 7 See Countermeasures through with clear detailed plan in a timely manner Open Communications vital during implementation Seek Ideas and Feedback to see what is and isn’t working Focus on One Countermeasure at a time to effectively monitor them

23 Implement Countermeasures (cont)
STEP 7 “Anyone who has never made a mistake has never tried anything new” Albert Einstein Mistakes happen it’s OK Continue to work through the process Persistence is Key

24 Monitor Results & Process
STEP 8 Some countermeasure require more than one attempt to get right This may need modification and adjusting Determine if intended outcome was result of countermeasure or a fluke Always room for improvement in process if you have the tools in the right place to recognize them

25 Standardize and Share Success
Review the following documents / systems: STEP 9 Set new processes as the new standard Share results with organization Reflect on what you’ve learned Address ALL unresolved issues Management System Manual Manufacturing Work Instructions Inspection Work Instructions Flow Charts Control Plans Design FMEA Process FMEA Gauges PPAP (Production Part Approval Process) Engineering Change Approval Manufacturing Forms Inspection Forms

26 Recognise Success STEP 10 Communicate success!!
Notice boards, Intranet, Newsletters Tell the customer, sell the success, turn negative to positive Incentives for the most successful teams! “A person who feels appreciated will Always do more than what is expected

27 Incorporating The PDCA Deming Cycle
Problem Description Clarify Problem 3. Define Locate Point of Cause/Containment Identify Possible Root Cause Root Cause Analysis Implement Solution Check and Measure Improvement Standardise – Document and Archive Recognise Success Yokoten Plan Measure Analyse Improve Do Check Control Act

28 On to the Next One Continuous improvement
Move on to the next problem seamlessly Continue to work towards perfection

29 Cause And Effect Diagram

30 2. Cause & Effect Diagram - Fishbone
Causes Effect Main Category Cause Problem/ Desired Improvement Sub- Cause Root Cause Shows Various Influences: Sub-causes Likely Root Causes

31 What is it? An analysis tool that provides a systematic way of looking at effects and their respective causes Developed by Dr. Kaoru Ishikawa of Japan in 1943 and is sometimes referred to as an Ishikawa Diagram or a Fishbone Diagram because of its shape A graphical display of the possible reasons - root Causes related to a problem/condition - Effect Focuses on content of the problem not the symptom (effect) Creates a snapshot of the team’s collective knowledge

32 Why Implement this? It helps determine the root causes of a problem using a structured approach. It encourages group participation and utilizes group knowledge of the process. It uses an orderly, easy-to-read format to diagram cause-and-effect. relationships It indicates possible causes of variation in a process. It increases knowledge of the process by helping everyone to learn more about the factors at work and how they relate. It identifies areas where data should be collected for further study.

33 Step 1 Identify and clearly define the outcome or EFFECT to be analysed.

34 Step 2 Draw the SPINE and create the EFFECT box.
Draw a horizontal arrow pointing to the right. This is the spine. To the right of the arrow, write a brief description of the effect or outcome which results from the process. Draw a box around the description of the effect.

35 Fishbone Diagram Spine Problem Effect Box

36 Step 3 Identify the main CAUSES contributing to the effect being studied. Establish main causes, or categories, under which other possible causes will be listed. 4Ms – Methods, Materials, Machinery, and Man 4Ps – Policies, Procedures, People, and Plant Environment

37 Step 3 Identify the main CAUSES contributing to the effect being studied. Write the main categories your team has selected to the left of the effect box. Draw some above and below the spine. Draw a box around each category label and use a diagonal line to form a branch from the box to the spine.

38 Inaccurate “Amount Due” Invoice
Diagram - Example 1. SELECT PROBLEM OR EFFECT TO PROFILE Material Method INCORRECT UNIT PRICE INCORRECT QUANTITY Inaccurate “Amount Due” Invoice INCORRECT PRODUCT CODE Environment 3. PROFILE CAUSES BY BRANCH 2. TEAM MEMBERS LIST POTENTIAL CAUSES Machine Man Brainstorming capitalises on the experience and expertise of your team members

39 Step 4 For each major branch, identify other specific factors which may be the CAUSES of the EFFECT. Identify as many factors or causes possible and attach them as sub-branches of the major branches. Fill in detail for each cause.

40 Step 5 Identify more detailed levels of causes and continue organising them under related causes or categories.

41 Diagram - Example 4. ADD Sub-Causes Method INCORRECT QUANTITY

42 Step 6 Analyse the diagram.
It helps identify causes that warrant further investigation. Use a pareto chart to determine the cause to focus on first. See the “balance” of your diagram, checking for comparable levels of detail for most of the categories.

43 Step 6 Analyse the diagram.
A thick cluster of items in one area may indicate a need for further study. A main category having only a few specific causes may indicate a need for further identification of causes. If several major branches have only a few sub-branches, you may need to combine them under a single category.

44 Step 6 Analyse the diagram.
Look for causes that appear repeatedly. These may represent root causes. Look for what you can measure in each cause so you can quantify the effects of any changes you make. Most importantly, identify and circle the causes that you can take action on.

45 5 WHYS

46 The Five Whys in Action A two-week old washing machine suddenly stops working... 1st Why: Why did the machine stop working? The fuse blew 2nd Why: Why did the fuse blow? The motor overheated 3rd Why: Why did the motor overheat? The shaft was misaligned 4th Why: Why was the shaft misaligned? The shaft bearing was damaged 5th Why: Why was the bearing damaged? The shaft seal was missing.

47 5 Whys Worksheet Define the Problem: Why is it happening? 1 2 3 4 5
You don’t Define the Problem: want to list 5 different reasons; you want to go deep on 1 reason. Why is it happening? 1 Therefore Why is that? Therefore Caution: Why is that? 2 If your last answer is something you Therefore Why is that? 3 can’t control, go back up to the previous answer on 1 reason Cannot because of a person Why is that? Therefore 4 5 Therefore Action:

48 Five Why Non- conformance: No paper towel at wash basin
Q: Why is there no paper towel supplied to the wash had basin? A: Cleaner did not refill. Q: Why did the cleaner not refill? A: Could not locate any stock. Q: Why was there no stock? A: Stock had not been ordered. Q: Why had the stock not been ordered? A: The purchasing officer was not informed that stock was low. Q: Why were purchasing not informed? A: The cleaner didn’t know who to tell. Q: Why didn’t the cleaner know who to tell? A: They have not been adequately trained in the procedure. Welding robot stops in the middle of its operation: Q: Why did the robot stop? A: A fuse in the robot has blown. Q: Why has the fuse blown? A: Circuits overloaded. Q: Why did the circuit overload? A: The bearings have damaged one another & locked up. Q: Why have the bearings damaged one another? A: There was insufficient lubrication on the bearings. Q: Why was there insufficient lubrication on the bearings? A: Oil pump on robot is not circulating sufficient oil. Q: Why isn’t the pump circulating sufficient oil? A: Pump intake is clogged with metal shavings. Q: Why is the intake clogged with metal shavings? A: No filter on pump intake.

49 Why Five? Obviously, most causes of defects won’t be exactly FIVE WHYS deep “FIVE” promotes persistence, rather than the assumption of simple cause and effect DON’T STOP until you get to the root cause, but once you’ve reached the root cause, STOP

50 Confirm Confirmation that the counter measure(s) are implemented, effective and standardised Physical confirmation through effective comms structure Result confirmation over defined time period A tracking document to verify and ensure that if the problem does reoccur that the original countermeasure is in place. If it is has it been followed If it isn’t confirm it is re-implemented and verify it will prevent reoccurrence If it is in place and being followed then the correct root cause has not been identified reopen the problem document (practical problem solving sheet)

51 Review Root cause analysis is an important aspect of continuous improvement because it helps us to identify the errors that cause defects We use the five whys to ensure that we drill down to the root causes of problems “Five” promotes persistence; most root causes will not be exactly five levels deep

52 Overview O X 1 2 3 4 COMPANY DEFECT INVESTIGATION AND FEEDBACK REPORT.
SQA (Circle Type). MPCS Log Number: Vehicle Model: Defect Description: Direct Cause. G/L / ENG. Direct Cause. G/L / ENG. Direct Cause. G/L / ENG. Direct Cause. G/L / ENG. 1 2 3 4 Date: O X Issue Sequence N°. WHY: WHY: WHY: WHY: Inspector / Auditor: Report Writer: Shift: WHY: WHY: WHY: WHY: Group: Investigation : 5-Why Analysis. 10 Department: HOW? WHO? WHY: WHY: WHY: WHY: Containment. WHERE? WHEN? WHY: WHY: WHY: WHY: Safe Seq. N°. WHY: WHY: WHY: WHY: 10 Containment Verification WHO: HOW: WHEN: Defect characteristics, Point of cause, History and other supporting data; 10 Root Cause. Grasp The Situation. 25 Date and Date and Date and Date and Countermeasure. Resp Resp Resp Resp Date and 10 Resp Date and Resp Date and Resp Date and Resp MANUFACTURING DETECTION Date and Resp Date and Resp Date and Resp Date and Resp MACHINE. MAN. MACHINE. MAN. 10 Countermeasure Verification Date and Resp Date and Resp Date and Resp Date and Resp DEFECT. Date and Resp Date and Resp Date and Resp Date and 10 Resp Investigation - Fish - Bone. ENVIRONMENT. ENVIRONMENT. YOKOTEN: STANDARDISATION: Yokoten. METHOD. MATERIAL. METHOD. MATERIAL. 5 Evaluation. ITEM. Manufacturing STANDARD. ACTUAL. JUDGEMENT. ITEM. Detection STANDARD. ACTUAL. JUDGEMENT. Confirmation Responsible Department Sign Off: QA Engineering Sign Off: Distribution: RESP . G/ L RESP . SEN IOR G/ L RESP MA N A GER EN GIN EER QA SEN IOR EN GIN EER QA MA N A GER DIRECTOR 10 10

53 Yokoten Simply put, Yokoten equals copy and improve.
Yokoten is a process for sharing learning laterally across an organization. It entails copying and improving on kaizen ideas that work. Yokoten is horizontal and peer-to-peer, with the expectation that people go see for themselves and learn how another area did kaizen and then improve on those kaizen ideas in the application to their local problems. It’s not a vertical, top-down requirement to “copy exactly”. Nor is it a “best practices” or “benchmarking” approach Rather, it is a process where people are encouraged to go see for themselves, and return to their own area to add their own wisdom and ideas to the knowledge they gained. Simply put, Yokoten equals copy and improve.


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