Focusing quality efforts and improving prioritisation of nonconformities by utilising field return data
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Examensarbete för masterexamen
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While there is a plethora of evidence displaying the benefits of both continuous
improvement as well as sound improvement project prioritisation, there is limited
research in this area in the context of nonconformities arising in the field. Furthermore,
many companies still heavily rely on ad-hoc problem-solving and subjective
judgements for dealing with nonconformities. This, in combination with the fact
that scarce resources pervade all organisations in today’s harsh market environment,
sheds a light on the importance of improvement project prioritisation. This
thesis thus seeks to bridge this gap and investigate how a manufacturing company
can prioritise among nonconformities to assure that the most critical ones are being
addressed. This includes investigating what attributes and methods should be
utilised and how the outcome should be communicated throughout an organisation.
This thesis was performed at a case company and is based on qualitative and quantitative
data collected through interviews, focus groups, observations, and a survey at
the case company. The findings of this thesis suggest a prioritisation model which
can be used to support informed and structured decisions for prioritisation. The
proposed model is adopting a weighted multi-attribute approach for evaluation and
prioritisation of non-conformities and integrates elements from both Pareto- and
FMEA analysis, which aid the realisation of more effective and strategic quality improvements.
With this thesis, we hope to illuminate the potential benefits that can
be achieved by acknowledging and prioritising nonconformities from field returns
while more research on the area is still needed.