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Tillämpa Root Cause Analysis på återkommande problem med administrativa symptom: En explorativ studie av materialdifferenser inom Volvo Car Body Components
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. Blekinge Tekniska Högskola.
Blekinge Institute of Technology, Faculty of Engineering, Department of Mechanical Engineering. Blekinge Tekniska Högskola.
2015 (Swedish)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [sv]

Root Cause Analysis (RCA) är en metodik som kan användas vid

problemlösning för att gå till botten av en problemsituation och lösa ut de

grundläggande orsakerna bakom problematiken. Problemet med RCA är att

denna metod har främst undersökts och använts i sammanhang då ett problem

med fysisk händelse, ett praktiskt symptom, har inträffat. En enligt studenterna

förbisedd del av denna forskning berör problem där symptomet inte kan

kopplas till en fysisk händelse – ett administrativt symptom. Syftet med denna

studie är att tillämpa RCA på ett problem med administrativt symptom för att

sedan ställa detta resultat i relation till andra studier med praktiska respektive

administrativa symptom. Därefter gör studenterna bedömningen huruvida RCA

är en lämplig metodik vid tillämpningen av ett administrativt symptom eller



Denna studie har genomförts på Volvo Cars Body Components (VCBC) i

Olofström där det undersökta problemet med administrativt symptom har varit

VCBCs materialdifferenser på produktionsmaterialet plåt. Utifrån denna studie

framkom sex rotorsaker bakom VCBCs problematik, vilka alla oberoende av

varandra gav upphov till problematiken. Denna trend kunde uppvisas i annan

studie med administrativt symptom, men kunde inte uppvisas i någon studie då

ett praktiskt symptom studerats. En slutsats av denna studie visar på att

skillnaden mellan ett problem med ett praktiskt respektive administrativt

symptom ligger i själva ursprunget till den grundläggande rotorsaken. I fall med

praktiska symptom kan denna direkt hänvisas till en mänsklig faktor som

ursprung till problematiken, en trend som inte framgår i de fall då ett

administrativt symptom undersökts. Det är också studenternas slutsats att RCA

är en lämplig metodik att använda vid problem med administrativa symptom.

Abstract [en]

Root Cause Analysis (RCA) is a method that can be used in problem solving to

get to the bottom of a problem situation and solving the root causes behind the

problems. The problem of RCA is that this method has mainly been studied and

used in contexts where a problem with the physical event, a practical symptom

occurred. According to the students, an overlooked part of this research

addresses problems where the symptom cannot be linked to a natural event

– an administrative symptom. The purpose of this study is to apply RCA to a

problem with an administrative symptom in order to then set the result in

relation to other studies with practical and administrative symptoms. Thereafter

the students will do the assessment whether RCA is a suitable methodology to

apply on an administrative symptom or not.


This study was conducted at Volvo Cars Body Components (VCBC) in

Olofström where the investigated problem with an administrative symptom has

been VCBCs material differences in the production material sheet. Based on

this study six root causes were revealed to be behind VCBCs problems, where

all, independent of each other, gave rise to problem. This trend could be

presented in another study with administrative symptom, but could not be

produced in any study where a practical symptoms was studied. One conclusion

of this study show that the difference between a problem with a practical

respectively administrative symptom lies in the very origin of the fundamental

root cause. In cases of practical symptoms, this may actually refer to a human

factor as the origin of the problem, a trend which is not clear in cases where an

administrative symptom is investigated. It is also the student's conclusion that

RCA is an appropriate methodology to use in case of problems with the

administrative symptoms

Place, publisher, year, edition, pages
2015. , 121 p.
Keyword [en]
RCA, Material differences, Practical symptom, Administrative symptom, Problemsolving, Root cause, Qualitative methods, Qualitative survey
Keyword [sv]
RCA, Materialdifferenser, Praktiskt symptom, Administrativt symptom, Problemlösning, Rotorsak, Kvalitativa metoder, Kvalitativ undersökning
National Category
Engineering and Technology
URN: urn:nbn:se:bth-11118OAI: diva2:877543
External cooperation
Volvo Cars Body Components
Subject / course
MT2535 Degree Project in Master of Science in Industrial Management and Engineering
Educational program
IEACI Master of Science in Industrial Management and Engineering
2015-06-09, J1640, Blekinge Tekniska Högskola, Karlskrona, 10:15 (Swedish)
Available from: 2015-12-07 Created: 2015-12-04 Last updated: 2015-12-07Bibliographically approved

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