liu.seSearch for publications in DiVA
Change search
ReferencesLink to record
Permanent link

Direct link
Detection and interpretation of weak signals
Linköping University, Department of Computer and Information Science, Human-Centered systems.
2016 (English)Independent thesis Advanced level (degree of Master (Two Years)), 20 credits / 30 HE creditsStudent thesis
Abstract [en]

Managing safety at a nuclear power plant is about a complex system with demanding technology under time pressure where the cost of failure is exceptionally high. Swedish nuclear power plants have over the last few years introduced Pre-job Briefing and other so called Human Performance Tools to advert errors and strengthen control. By using the Systemic Resilience Model different views of safety are taken to understand the origin of the signals that leads to a Pre-job Briefing, and how the signal is interpreted, re-interpreted, and presented.

The study took place at a Swedish nuclear power plant and included four days of observations and 20 interviewees. The thematic analysis shows a similarity between mentioned origins of Pre-job Briefings and the intended use of Pre-job Briefing. Characteristics of a High Reliability Organisation is shown in practice by a culture of that one will to have a Pre-job Briefing is enough, that sharp end workers is used as a valuable resource for safety and a systematic support to screen jobs over time without influencing non-job related factors.

The signals acted upon matched well with the intended, and personnel get several opportunities to evaluate the signals together, striving for best possible circumstances. The Systemic Resilience Model was successfully applied together with a thematic analysis, which strengthens its validity as a holistic model that combines different views of safety in one coherent model. SyRes allowed to present additional themes, leaving the question at what stage SyRes is optimally implemented in a thematic analysis.

Place, publisher, year, edition, pages
2016. , 67 p.
Keyword [en]
resilience, stability, SyReS, nuclear, Human Performance, Human factors, weak signals, pre-job briefing, human performance tools, drift into failure, drift, views on safety
National Category
Information Systems
URN: urn:nbn:se:liu:diva-129943ISRN: LIU-IDA/KOGVET-A--16/004—SEOAI: diva2:945546
External cooperation
Vattenfall AB
Subject / course
Cognitive science
2016-06-15, 15:12 (Swedish)
Available from: 2016-07-04 Created: 2016-07-01 Last updated: 2016-07-04Bibliographically approved

Open Access in DiVA

Richard Wiik Detection and interpretation of weak signals(2381 kB)29 downloads
File information
File name FULLTEXT01.pdfFile size 2381 kBChecksum SHA-512
Type fulltextMimetype application/pdf

Search in DiVA

By author/editor
Wiik, Richard
By organisation
Human-Centered systems
Information Systems

Search outside of DiVA

GoogleGoogle Scholar
Total: 29 downloads
The number of downloads is the sum of all downloads of full texts. It may include eg previous versions that are now no longer available

Total: 181 hits
ReferencesLink to record
Permanent link

Direct link