In dieser Präsentation konzentrieren wir uns auf einen Anwendungsfall, bei dem ein Unternehmen mit Kundenbeschwerden konfrontiert wird.
Ihnen wird gezeigt wie Sie das Problem erfassen, die Grundursache finden und die effektivste Lösung umsetzen können.
Dieser Anwendungsfall wird mit Hilfe von den Minitab-Softwarepaketen Workspace und Statistical Software durchgeführt.
Wenn Kunden Probleme bei Dienstleistungen oder Produkten beanstanden, ist es unerlässlich, dass die Qualitätsexperten die Grundursache schnell und eindeutig identifizieren.
Wie können Sie Prozesse effektiv untersuchen, verbessern und auf dem verbesserten Niveau halten?
In dieser Präsentation wird ein Beispielprojekt bearbeiten, das sich mit Beschwerden von Kunden in Bezug auf die Qualität von Mobilfunksignalen befasst.
Roberto zeigt Ihnen einen Plan mit dem Sie:
Ihren Ansatz zur Problemlösung mit Daten strukturieren.
Die richtigen Methoden für die Ursachenforschung auswählen.
Lohnende Chancen für Verbesserungen identifizieren.
Lösungen für die besten Ergebnisse umsetzen und nachhaltig beibehalten können.
Sie erlernen eine bewährte Abfolge von Schritten, mit denen Sie Ihr Messsystem auswerten, die Grundursache aufdecken und ein erfolgreiches Lean Six Sigma-Projekt durchführen, von der Projektcharta und dem Ideendiagramm bis zum Kontrollplan.
Außerdem veranschaulichen wir wesentliche Analysen für die kontinuierliche Verbesserung, darunter:
Pareto-Diagramme, Messsystemanalyse, Prüferübereinstimmung bei attributiven Daten, Regelkarten, Prozessfähigkeitsanalyse und mehr.
Die Aufzeichnung dieser Präsentation ansehen: https://hubs.ly/H0GN6jj0
57. Sehen Sie die Webinar an >
Wir beraten Sie gerne.
Homepage: Minitab.de
E-Mail: vertrieb@minitab.de, techsupport@minitab.de
Entdecken. Prognostizieren. Ziele erreichen. Transformieren
kostenloses Webinar
Strukturierte Problemlösung
mit Datenunterstützung
Hinweis der Redaktion
Companion Step 1. Introduction in Companion
Note: fictional case study
Leave this session with actionable methods to apply to your organisation and its challenges,
INCLUDES DEMONSTRATIONS OF: Minitab Statistical Software and Companion by Minitab
We’ll focus on a case study showing you the different steps you would need to go through when conducting a process improvement project
Companion Step 2. Terracotta Mobile
Companion Step 3. Pareto chart
Companion Step 3. Pareto chart
Assistant>Graphical Analysis Under Graph the distribution of data select Help Me Choose > Pareto Chart
Companion Step 3. Pareto chart
Worksheet: Pareto
Assistant menu > Graphical Analysis > Pareto chart. Choose ‘Each defect observation is in a separate row’. Complaint as the data defects column and frequency as summarized values in a table, deselect show cumulative line
Companion Step 3. Pareto chart
Companion Step 5. Typical DMAIC analysis steps
RAC will change this to reflect the DMAIC text that follows it
Companion Step 4. Typical DMAIC analysis steps
Companion Step 4. Typical DMAIC analysis steps
Companion Step 4. Typical DMAIC analysis steps
Companion Step 5. Project Charter
Open DMAIC Project.QCPX
Show the project charter that has been set up out of the box
Companion Step 6. Define Summary
Both connection and signal strength were measured in a simulated high volume environment to represent worse case scenarios.
Companion Step 7. Mesurement System Analysis Intro
Companion Step 8. Gage R&R demonstrated live in Minitab
Companion Step 9. Gage R&R Analysis Capture
Companion Step 9. Gage R&R Analysis Capture
Open the tab for Gage R&R and then Assistant>Measurement Systems Analysis>Gage R&R Study (Crossed). You need to put Operator in Operators, Tranceiver in Parts, ‘Signal Quality’ in Measurements. Estimate from Parts in the Study
Companion Step 10. Check Initial Process performance
Open up the Excel worksheet called CapabilityBench.xls from Minitab worksheet. You can show that the format for date is incorrect. Change format for C2 to Date/Time and then do Preview worksheet to show that all is now OK. Open the worksheet
Companion Step 11. Sorting Data
Data>Sort and sort by date in the original columns
Companion Step 12. Create Patterned Data
Companion Step 13. Conditional formatting
RHM in C1>Conditional Formatting>Statistical>Out of specifications and type 80 as lower spec
Companion Step 15. Extract Day of the Week
Data>Date/Time>Extract to Text. Put Date under Extract from date/time column and put Day under Store Text column In. Select Day of the week under Specify at least one component to extract from date/time
CTRL-E and type Time in stead of Day and select Hour instead of Day of the week
Value order the days of the week so that Sun is the first day of the week
Companion Step 16. Graph your Data
Assistant>Graphical Analysis>Boxplot Ycolumn>’Signal Strength’ and Number of X columns 1 X1: Day
Companion Step 17. Control Chart Introduction
Companion Step 18. Baseline
Worksheet: CapabilityBench or currenta ctive worksheet
Stat > Control Charts > Variable Charts for Subgroups > Xbar-R. Signal Strength as measurement data and 5 for subgroup sizes. Double click on the x-axis to stamp the day of the week on it.
Companion Step 19. Control Chart – No Monday – No special causes
Data > Subset worksheet. Under Do you want to include or exclude rows, select Exclude rows that match the condition. Select Column Day. Check Wed and type Excluding Wednesday under New Worksheet name
Stat>Control Charts>Variable Charts for Subgroups>Xbar-R & OK
Companion Step 19. Control Chart – No Monday – No special causes
This works better
Companion Step 20. Capability introduction
Companion Step 21. Capability Analysis baseline
Capability analysis measures how well a process performs to specification
Assistant>Capability Analysis>Capability Analysis. Select Signal Strength for Column and date for column of Subgroup Ids. Type 80 for Lower Spec and 90 for Target.
Select Yes when Minitab asks you if you want to transform your data
Companion Step 21. Capability baseline
Companion Step 21. Capability baseline
Companion Step 21. Capability baseline
Companion Step 21. Capability baseline
Companion Step 23. Idea map
The capability at the moment is very poor. The company needs to investigate which factors we need to modify to improve the process.
Companion Step 22. Idea map
The capability at the moment is very poor. The company needs to investigate which factors we need to modify to improve the process.
Companion Step 23. Which factors are the most interesting
The capability at the moment is very poor. The company needs to investigate which factors we need to modify to improve the process.
Companion Step 26. C&E Matrix
The capability at the moment is very poor. The company needs to investigate which factors we need to modify to improve the process.
Companion Step 27. DOE Intro
What is important to customers is whether they get through or not
Companion Step 28. DOE planning
Stat>DOE>Factorial>Create Factorial Design and choose 3 as the number of factors and then Full Factorial with 2 centre points enter the three factors Tranceivers with levels 7 and 10, Height with levels 22 and 46 and Transponder Types with levels dTru and sTru
We recommend not running the analysis during the presentation live but go straigth into the output,
Companion Step 29. DOE Data collection
Stat>DOE>Factorial>Create Factorial Design and choose 3 as the number of factors and then Full Factorial with 2 centre points enter the three factors Tranceivers, Height and Transponder Types
Worth mentioning that DOE for binary data is new in Minitab 19
Companion Step 31. DOE Analysis
Open DOE Model.MTW worksheet. Analyze the data using Stat>DOE>Factorial>Analyze Bianry Response and use stepwise – Forward information criteria
Companion Step 31. DOE Analysis
Stat>DOE>Factorial Plots
Companion Step 31. DOE Analysis
Stat>DOE>Factorial>Response Optimizer. Next to number of connections change the goal to maximize and hit OK
Companion Step 32. Final Capability Intro
Companion Step 33. Capability Analysis Final
Assistant > Before/After Capability > Capability Comparison. Under Baseline process data,Select Data are in one column under How are your data arranged in the worksheet with Signal Strength for Column and 5 for constant size for all subgroups. Under Improved process data, do the same as for baseline process data but under Column put New Signal strength. Under Lower Spec put 0.8 and Target 0.9
Companion Step 34. Capability Analysis Final
Companion Step 34. Capability Analysis Final
Companion Step 34. Capability Analysis Final
Companion Step 35. Control Plan Intro
Companion Step 36. Control Plan
Open DMAIC.qpcx and go to Control Plan in the Implement Control Strategy Phase
Show them how to make patterned data in Minitab 19 (from 1/9/2014 5 times per day until 1/12/2019)
Companion Step 37. Control Plan Minitab Worksheet
Calc>Make Patterned Data>Simple set of date/time values. From first date/time: 1/9/14 To last date/time value: 7/9/14 Number of times to list each value: 5
Calc>Make Patterned Data>Arbitary set of date/time values. Store patterned data in Time, arbitrary set of date/time values: 09:00 12:00 15:00 18:00 23:00. Number of times to list the sequence: 7
Companion Step 38. Control - Conclusions
Companion Step 39. Session – General conclusions
Vielen Dank, Roberto! Das war sehr aufschlussreich.
Die gute Nachricht ist, dass Sie gleich beginnen können, ALLES, was Sie gesehen haben, auszuprobieren.
Beginnen Sie einfach mit einer 30-Tage-Demoversion.
Besuchen Sie minitab.com/trial, geben Sie Ihre Daten ein, und erhalten Sie kostenlos für einen Monat uneingeschränkten Zugriff. Sie benötigen keine Kreditkarte!