Changes between Version 24 and Version 25 of BluePrintVITA


Ignore:
Timestamp:
12/23/09 19:26:36 (12 years ago)
Author:
Dominic König
Comment:

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  • BluePrintVITA

    v24 v25  
    3030Recognition can happen explicitly, i.e. in response to observation requests. In these cases, the time and location as determined by the request are used to establish a presence. Explicit recognition events may lead to establishment of explicit absence (=this one not here now).
    3131
    32 Locations in presence records represent geospatial features, which can basically be of any valid feature class (points, polygons, lines etc.). Where references to locations are used in communications, they must be universally unique and resolvable; otherwise the referred geospatial information have to be enclosed in the communication.
     32'''Location'''s in presence records represent geospatial features, which can basically be of any valid feature class (points, polygons, lines etc.). Where references to locations are used, they must be universally unique and resolvable; otherwise the referred geospatial information have to be enclosed in the database and/or communication.
    3333
    34 In contrast to that, ''time'' in this regard means one exact time point, to be stored as coordinated universal time (UTC, Gregorian date including century) with a minimum precision of one second. Relative times must not be used.
     34In contrast to that, '''time''' in this regard means one exact time point, to be stored as coordinated universal time (UTC, Gregorian date including century) with a minimum precision of one second. Neither references nor relative times may be used.
    3535=== Identity ===
    3636