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Abstract. Many of today's engineering applications for simulations are lacking machanisms to trace the generation of results and the underlying processes. Especially computations conducted in distribued computing environments as Grids are lacking suitable means to keep track of used resources. Trust of engineers in results produced within distribued simulation environments is very limited without this information. This paper will demonstrate how trust and confidence in simulation results could be achived for engineering applications. It will highlight the backgrounds of the application, of provenance recording, the mapping to the application, and finally the implementation of provenance awareness for the application. Additionally it will present examples of analyzing the information stored to be of further use to the engineer.

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Digital colour cameras are dramatically falling in price, making them affordable for ubiquitous appliances in many applications. An attempt to use colour information reveals a significant problem that usually escapes our awareness. Due to the adaptive nature of the human visual system in most cases we do not recognise most changes in illumination characteristics, a camera however will measure scenes under changing illumination differently. Attempts to deduce object colour from the images will need to cope with the influence of the illumination and the camera's characteristics. Furthermore, a large variety of colour spaces are available to describe colour. Differences between them and their fitness to quantify colour are discussed. This paper tries to establish a basic understanding of the intricacies behind the processes involved in capturing images and recognising colour-from light as a stimulus to the colour sensed values in cameras. The goal is to outline a novel approach fusing common industrial best practices with dynamic adaptation capabilities needed for robustly measuring colour using cameras in real-time. First positive results towards improving colour based reasoning on adaptable colour spaces are stated as an outlook for further development directions.