“…Over the last decade, numerous context-aware applications have been reported for use in e.g. hospitals [3,20], shops [1], museums [14,21], tourism [2,9], zoological fieldwork [22], on universities [8,15], conferences [11,10], and offices [24]. Furthermore, numerous infrastructures and application frameworks have been proposed to enable the easy development of context-aware applications, each having different technological approaches and application focuses.…”