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Auflistung nach Schlagwort "mobile"

1 - 7 von 7
  • Konferenzbeitrag
    Cross-Browser Tests und die Tücken des Alltags
    (UP14 - Kurzvorträge, 2014) Charlier, Nicole; Süß, Daniel
    Die Diversität der Endgeräte erhöht sich jeden Tag. Ein Usability Professional steht hier vor den Fragen: 'Wie teste ich meine Anwendungen und wann bin ich damit fertig?' Aufwandsprojekte und Festpreisprojekte unterscheiden sich zudem stark im zeitlichen Umfang der Evaluation, sollen aber gleichwertig im Endergebnis sein. Welche Werkzeuge brauche ich als Usability Professional um effizient im Projektablauf die Qualität meiner Anwendungen zu gewährleisten? Praxiserfahrungen aus Festpreisprojekten sollen Usability Professionals helfen, die richtigen Fragen zu stellen und sich das eigene (physische oder virtuelle) 'Testlabor' zusammenzustellen.
  • Konferenzbeitrag
    Demonstrating ScreenshotMatcher: Taking Smartphone Photos to Capture Screenshots
    (Mensch und Computer 2021 - Tagungsband, 2021) Schmid, Andreas; Fischer, Thomas; Weichart, Alexander; Hartmann, Alexander; Wimmer, Raphael
    Taking screenshots is a common way of capturing screen content to share it with others or save it for later. Even though all major desktop operating systems come with a screenshot function, a lot of people also use smartphone cameras to photograph screen contents instead. While users see this method as faster and more convenient, image quality is significantly lower. This paper is a demonstration of ScreenshotMatcher, a system that allows for capturing a highfidelity screenshot by taking a smartphone photo of (part of) the screen. A smartphone application sends a photo of the screen region of interest to a program running on the PC which retrieves the corresponding screen region with a feature matching algorithm. The result is sent back to the smartphone. As phone and PC communicate via WiFi, ScreenshotMatcher can also be used together with any PC in the same network running the application – for example to capture screenshots from a colleague’s PC. Released as open-source code, ScreenshotMatcher may be used as a basis for applications and research prototypes that bridge the gap between PC and smartphone.
  • Textdokument
    Development of a Domain-Specific Language for Run-Time Process Modelling
    (INFORMATIK 2017, 2017) Jannaber, Sven; Zobel, Benedikt; Riehle, Dennis M.; Thomas, Oliver; Becker, Jörg
    Wearable devices pose novel challenges to the BPM field. The advanced functionality in combination with the increased mobility has rendered devices such as smart glasses particularly suited for mobile process support. However, whereas this support is predominantly limited to information provision and workflow management, the glasses’ capability to be utilized for actual process modelling has yet to be investigated. As a first step, this paper proposes an outlook on the development of a process modelling language that is specifically tailored towards the application domain smart glasses and can be applied for both modelling and representing business processes using a glasses-based modelling environment. A demonstration case is provided to highlight the utilization of process modelling on smart glasses.
  • Konferenzbeitrag
    Extending the 0Auth2 Workflow to Audit Data Usage for Users and Service Providers In a Cooperative Scenario
    (10. DFN-Forum Kommunikationstechnologien, 2017) Politze, Marius; Decker, Bernd
    The increasing amount and heterogeneity of devices demands changes in IT infrastructure. Many web service architectures used to meet these demands use the OAuth2 workflow to secure their interfaces. These implementations usually tightly couple web services and an OAuth2 authorization service. The presented extension to the OAuth2 workflow is capable handling authorizations for multiple attached services and therefore combines existing services of a central IT service provider but also allows other services running in a cooperative model with only a single instance ofthe authorization server. Based on auditing parameters it is possible to present access per resource or per method giving service providers and application developers more insight in how their services are used and show users by whom their personal data is used.
  • Konferenzbeitrag
    Gamification in the inDAgo HelpMe application
    (Mensch & Computer 2014 - Tagungsband, 2014) Baumann, Kristian; Klein, Peter; Mrsic Carl, Antonija; Bender, Denise
    The changing demographic structures in western societies have led to a higher need for assistance for elderly people in their everyday lives. Staying mobile is very important for the quality of life, but is anything but simple when getting older. The research project inDAgo, a project initiated by research facilities in and around the city of Darmstadt, Germany, targets this problem. A first result of this project is the HelpMe application (app). By means of this app, elderly people can easily transmit in difficult situations a call for help to a network of trustworthy people willing to assist. They then receive quick and uncomplicated support by helpers in their vicinity.
  • Workshopbeitrag
    Remote Drawing on Vertical Surfaces with a Self-Actuated Display
    (Mensch und Computer 2015 – Proceedings, 2015) Bader, Patrick; Pohl, Norman; Schwind, Valentin; Henze, Niels; Wolf, Katrin; Schneegass, Stefan; Schmidt, Albrecht
    Today, most digital devices are either stationary, often placed on horizontal surfaces like tables, or so-called mobile devices which are carried around by the user. In this demonstration we showcase our ongoing work on a novel type of self-actuated display. It can be placed on walls, or whiteboards and other arbitrarily oriented surfaces like ceilings. It is equipped with a whiteboard marker which allows the device to draw on surfaces it is attached to. In this work, we demonstrate the device's capabilities using an interactive scenario in which users are able to remotely control the self-actuated display to draw lines on a whiteboard. They control the device either by using their own smart phone or a provided tablet computer.
  • Konferenzbeitrag
    ScreenshotMatcher: Taking Smartphone Photos to Capture Screenshots
    (Mensch und Computer 2021 - Tagungsband, 2021) Schmid, Andreas; Fischer, Thomas; Weichart, Alexander; Hartmann, Alexander; Wimmer, Raphael
    Taking screenshots is a common way of capturing screen content to share it with others or save it for later. Even though all major desktop operating systems come with a screenshot function, a lot of people also use smartphone cameras to photograph screen contents instead. While users see this method as faster and more convenient, image quality is significantly lower. With ScreenshotMatcher, we present a system that allows for capturing a high-fidelity screenshot by taking a smartphone photo of (part of) the screen. A smartphone application sends a photo of the screen region of interest to a program running on the PC which retrieves the matching screen region and sends it back to the smartphone. Comparing four feature matching algorithms and multiple parameters, we identified a combination of ORB keypoint detection (feature limit 2000) and a brute force feature matcher using Hamming distance as the best solution for this task (success rate: 85%, processing time: 90 ms). This raw performance results in a real-world success rate of 47% and a mean response time per screenshot of 878 ms as measured in a remote user study (N=19). Released as open-source code, ScreenshotMatcher may be used as a basis for applications and research prototypes that bridge the gap between PC and smartphone.