The growth in take-up of smartphones and tablet devices has made longitudinal and context-aware documenting of daily life easier. The Contextual Activity Sampling is a research methodology for the contextual tracking of activities. To support this methodology, an IT-system called CASS (Contextual Activity Sampling System) was developed. It consists of a backend service and a front-end system. The front-end system needs to run in different devices. Instead of developing a separate software for all major device platforms we designed and implemented a software architecture that is based on HTML5 and enables basic functionalities to run in browsers and enhanced functionalities to run as native applications. Thus CASS usage as a research tool will be widened as it supports a large base of different types of devices from PCs to tablets and smart phones.


html5 web technologies contextual activity sampling JavaScript framework cross-platform development AngularJS PhoneGap 


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© Springer International Publishing Switzerland 2014

Authors and Affiliations

  • Kari Salo
    • 1
  • Udeep Shakya
    • 1
  • Michael Damena
    • 1
  1. 1.School of ICTHelsinki Metropolia University of Applied SciencesFinland

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