This paper focuses on improving the efficiency and effectiveness of dynamic and interactive maps in relation to the user. A label placement method with an improved algorithmic efficiency is presented. Since this algorithm has an influence on the actual placement of the name labels on the map, it is tested if this efficient algorithms also creates more effective maps: how well is the information processed by the user. We tested 30 participants while they were working on a dynamic and interactive map display. Their task was to locate geographical names on each of the presented maps. Their eye movements were registered together with the time at which a given label was found. The gathered data reveals no difference in the user's response times, neither in the number and the duration of the fixations between both map designs. The results of this study show that the efficiency of label placement algorithms can be improved without disturbing the user's cognitive map. Consequently, we created a more efficient map without affecting it's effectiveness towards the user.

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In this paper, the focus is on the concept of Usability Engineering for GIS – a set of techniques and methods that are especially suitable for evaluating the usability of GIS applications – which can be deployed as part of the development process. To demonstrate how the framework of Usability Engineering for GIS can be used in reality, a screenshot study is described. Users were asked to provide a screenshot of their GIS during their working day. The study shows how a simple technique can help in understanding the way GIS is used in situ.

A pipeline of 3D scene reconstruction from point clouds fgi publications n:o 157 by Lingli Zhu 157 A pipeline of 3D scene reconstruction from point clouds

Human computer interaction (HCI) and software engineering approaches are always taken into the account together in order to make the well-organized software. Interactive design is the significant part of new media which has been pro-posed to the world for the past decades, and it is a very proficient technique. Interactive maps add more dimensions of information; they become a more and more helpful tools and resources. This research clarifies the idea of how we can smooth the progress of presenting and communicating the essential information using interactive manner. The interac-tive map of Bangkok underground train and sky train navigation routes map was developed as the case study using user-centered design (UCD) methodology as the fundamental developing processes. The main objective of the work is to develop the friendly and usable web based software that reduce the confusion and help users save times. The soft-ware developing processes in this work tend to focus on the users. And also the essential idea of the research is to take the uses and gratification communication theory of the users into account with the intention of providing what user re-quires by finding the real users ’ requirements. This means the user can control software according to their needs and software act or response according to user’s requests. The paper mentions the role of communication theory, human computer interaction, and user-centered design software developing.