Volunteered geographic information (VGI) projects, such as OpenStreetMap (OSM), provide an alternative way to produce geographic data. Research has proven that the resulting data in some areas are of decent quality, which guarantees their usability in various applications. Though these achievements are normally attributed to the huge heterogeneous community mainly consisting of amateurs, it is ...

Ontological Sketch Modelling (OSM) is an approach to usability evaluation that focuses on structures rather than tasks, and assesses the goodness of fit between the user’s conceptualisation of a system and that actually implemented by the designer. It provides a common representation that supports reasoning about users, domains and devices. In this paper, we introduce the rationale behind OSM, ...

Kartenansichten auf mobilen Displays werden heute oftmals aus verschiedenen Rasterkacheln (sog. Rastertiles) zusammengesetzt, die als vorgerenderte, kleine Rasterbilder auf einem Server liegen. Entscheidende Nachteile dabei sind, dass einerseits große Datenmengen transportiert werden und andererseits, dass das Kartenbild auf verschiedenen Displays unterschiedlich dargestellt wird. Am Beispiel e...

The type of data an individual contributor adds to OpenStreetMap (OSM) varies by region. The local knowledge of a data contributor allows for the collection and editing of detailed features such as small trails, park benches or fire hydrants, as well as adding attribute information that can only be accessed locally. As opposed to this, satellite imagery that is provided as background images in ...

This paper presents the customer satisfaction analysis for measuring popularity in the Mobile Cloud, which is an emerging area in the Cloud and Big Data Computing. Organizational Sustainability Modeling (OSM) is the proposed method used in this research. The twelve-month of German and Spanish consumer data are used for the analysis to investigate the return and risk status associated with the r...

We discuss an OpenStreetMap (OSM) mapping party organised during the Free and Open Source Software for Geospatial (FOSS4G) Europe 2015 conference held in Como, Italy in July 2015. While primarily the mapping party was organised as a conference social event, there was also the serious goal of collecting and adding geographic data to the OSM database of Como city. Our paper describes the organisa...

OpenTripPlanner was identified as the most promising open source multimodal trip planning software. OpenStreetMap, which provides mapping data to OpenTripPlanner, is one of the most well-known open source international repository of geographic data. General Transit Feed Specification, which provides transportation data to OpenTripPlanner, has been the standard for describing transit systems and...

Collaborative approaches based upon volunteered input into shared Internet-based resources are beginning to offer a radical and new alterative to more traditional mapping. This paper explores the potential of one of the most developed of these ‘open’ maps, in a case study of the OpenStreetMap project and of the practices deployed during a ‘mapping party’ in Manchester. The successes and weaknes...