Accepted: 8 May 2015 Visual control (visual inspection) is often used in production because -in comparison to other kinds of control -it is relatively easy to conduct. It does not require any specialized technical equipment. Human senses, usually sight, are the measurement tool. Unfortunately, visual control does not guarantee a fully correct assessment. The reason is the limited human reliability. There are plenty of factors which influence ability of a human to assess the process or product quality properly. An important group of them are ergonomic factors. The goal of the paper is to identify and discuss their influence on the efficiency of the visual quality control in manufacturing processes. The research was carried out in manufacturing company from automotive industry. The paper presents the investigation of work organizational factors influence on visual control effectiveness. A controller can make two types of errors in the process of visual inspection: to assess a conforming product as "defective" or to assess a non-conforming product as "good". Effectiveness of sequential visual controls in selected process was examined. As a measure of visual control effectiveness Control First Pass Yield index was defended. Three operations were analyzed: assembly of components, melting components and applying a protective coating.

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Europe 2020 is development strategy set by European Union for next decade. According to José Manuel Barroso (2014) in EU continuously changing intelligent and sustainable economy growth is needed as it is favorable not only to put attention and protection about natural environment and ecosystem but also to bigger proactive social commitment. Parallel work on these priorities should help EU organization as also member countries in economy prosperity grow in global perspective through increase of employment, productivity, social cohesion. Moreover it should be achieved also by negative influence on environment downscaling (especially in waste management) and bigger employers responsibility awareness of working conditions.

In paper influence of shift work preferences on quality control effectiveness is examined. Shift work indicated as one of key work organizational parameters that decrease visual control [Kujawińska, Vogt 2013]. Adjustment to work hours rotation in weekdays results in problems with regards to day and night activation cycle (day and night disturbances - sleep) as according to environmental interview also private, social disturbances and medical problems. In paper research results based on experiment performed in company manufacturing electronics for automotive industry. Shift work impact on visual inspections that placed sequentially in chosen technological process was examined. Single operator day and night cycle effectiveness was analyzed. Correlation strength between preferences indicated by operators to work on particular production shifts, and in particular days and real control effectiveness.