| Subject | Object |
|---|
| dcon:Absolute Altitude Value | "States the current absolute altitude (metres above ground level)" |
| dcon:Active Application | "Refers to active applications (running on a device) characterising a context instance." |
| dcon:Active File | "Refers to active files (running on a device) characterising a context instance." |
| dcon:Altitude Value | "States the current altitude (metres above sea level)" |
| dcon:Aspect | "At the highlest level, context information is classified under a number of context Aspects. These are provided as subclasses of this abstract class, which is not intended for direct use." |
| dcon:Attention | "The attention aspect covers context elements relating to the users' activities on their digital devices." |
| dcon:Average Direction | "Refers to a pre-defined traveling direction characterising a context instance." |
| dcon:Average Speed | "Refers to a pre-defined speed range characterising a context instance." |
| dcon:Brightness Level Value | "Registers an actual environmental brightness value element attribute to an active brightness level range in the current context." |
| dcon:Calories Expended | "Specifies the amount of calories burnt while performing the activity." |
| dcon:Cloud Cover Value | "Registers an actual cloud cover percentage value element attribute to an active weather condition in the current context." |
| dcon:Connected | "Specifies whether a network in range of the user's device(s) is connected (true) or otherwise (false) in the current context." |
| dcon:Connectivity | "The connectivity aspect covers context elements relating to the digital networks that are in range of the users' devices." |
| dcon:Context | "This RDF Graph contains information that can be used to characterise the state of an entity, where an entity can be a user's device or the user themselves. Although this abstract class is not intended for direct use, there are two main distinguishible subclasses. dcon:LiveContext represents uninterpreted states for a user's (multiple) devices, whereas dcon:Situation represents interpreted user states. There are three levels of representation for context: Aspects at the highest level, a set of Elements for each aspect, and a number of Attributes for each element." |
| dcon:Current Absolute Altitude | "States the current absolute altitude (metres above ground level)" |
| dcon:Current Activity | "Refers to a pre-defined activity category characterising a context instance." |
| dcon:Current Altitude | "States the current altitude (metres above sea level)" |
| dcon:Current Availability | "Refers to a pre-defined personal availability characterising a context instance." |
| dcon:Current Brightness | "Refers to a pre-defined environmental brightness level characterising a context instance." |
| dcon:Current Event | "Refers to an ongoing event characterising a context instance." |
| dcon:Current Mode | "Refers to the mode of the data source from which a context element has been retrieved, at retrieval time. A data source can consist of a service, an account, an application, or a device. " |
| dcon:Current Noise | "Refers to a pre-defined environmental noise level characterising a context instance." |
| dcon:Current Place | "Refers to a place type or specific location that characterises a context instance." |
| dcon:Current Task | "Refers to an ongoing task characterising a context instance." |
| dcon:Current Temperature | "Refers to a pre-defined environmental temperature range characterising a context instance." |
| dcon:Current Time | "Refers to a pre-defined time period that characterises a context instance." |
| dcon:Current Weather | "Refers to a pre-defined weather condition characterising a context instance." |
| dcon:Date and Time Value | "States the exact date and time value for a pre-defined time period in the current context." |
| dcon:Day of the Month | "Derived from the dateTime, this property stores the number of days elapsed for the current month, where 1 indicates the first day of the month, up to a maximum value of 31." |
| dcon:Day of the Week | "Derived from the dateTime, this property stores the number of days elapsed for the current week, where 1 indicates a Monday, and 7 a Sunday." |
| dcon:Direction Value | "States the actual direction value for a pre-defined direction range in the current context." |
| dcon:Distance Covered | "Specifies the distance travelled while performing the activity." |
| dcon:Distance Value | "Records the approximate distance between a device (as a proxy for the user) and an item. Not to be confused with dcon:distanceCovered. As this context attribute can be attached to instances of ncal:Event, pimo:Location, dpo:Place and pimo:Person, the domain of this property is generalised to dcon:Observation. However, the attachment of this attribute to other instances is not considered correct application of the DCON vocabulary." |
| dcon:Duration | "Specifies the duration since the start of the activity." |
| dcon:Element | "Each context Aspect has a number of specific elements. These are linked to each aspect through the generic dcon:hasContextElement property. As this is an abstract class, it is not intended for direct use. Instead, element instances are typically inferred through the use of dcon:hasContextElement (and its subproperties) and dcon:hasObservation. Elements can have multiple observations (e.g. from a different source or device), linked through dcon:hasObservation." |
| dcon:Environment | "The environment aspect covers context elements relating to current or forecasted environmental conditions, as experienced directly by the user, or by sensors in their surroundings." |
| dcon:Fog Factor Value | "Registers an actual fog factor value element attribute to an active weather condition in the current context." |
| dcon:Forecast Weather | "Refers to a forecast, pre-defined weather condition characterising a context instance." |
| dcon:GPS Latitude | "Records the exact latitude of the approximated location" |
| dcon:GPS Longitude | "Records the exact longitude of the approximated location" |
| dcon:Has Context Element | "Context aspects categorise elements relating to the same category of context information. Individual context elements are linked to each aspect through this generic property, which is not intended for direct use. Instead, specific subproperties for each supported element is provided." |
| dcon:Hours and Minutes elapsed | "Derived from the dateTime, this property stores the exact amount of minutes elapsed since the start of the current day. Implicitly also stores the number of elapsed hours. Thus, a value of 0 means that the current day has just started whereas a value of 1439 indicates the end of a day." |
| dcon:Humidity Value | "Registers an actual humidity level value element attribute to an active weather condition in the current context." |
| dcon:Item Weight | "This property assigns different weights to specific context aspects and/or elements, in order to better characterise a situation. As weights can be attached to both dcon:Element and dcon:Aspect instances, the domain of this property is generalised to dcon:Observation. However, the attachment of weights to other instances is not considered correct application of the DCON vocabulary. Expected weight values range from 0 (no impact on situation), to 1 (high impact on a situation). In addition, the dcon:isRequired property defines a necessity relationship between a context element and a situation, whereas the dcon:isExcluder property defines the inverse." |
| dcon:Last Active | "The last date and time for which user activity was detected on a device. This could consist of the last movement detected from the cursor/keyboard/touch screen and other device input mechanisms, as well as the last call recorded for voice communication-enabled devices." |
| dcon:Last Movement Registered | "The last date and time for which a portable device was detected to be moving. This information relies on embedded accelerometers and other motion sensors." |
| dcon:LiveContext | "This class represents the uninterpreted state of the users as sensed through their devices. Instances of this class should be limited, since they are meant to represent realtime, 'live' raw context information as sensed through a variety of a user's devices, their applications and sensors. Although one unique instance should represent the dynamically changing live context, additional instances can be used to contain live context information for the recent past." |
| dcon:Month | "Derived from the dateTime, this property stores the number of months elapsed for the current year, where 1 indicates January, and 12 December." |
| dcon:Music Detected | "Registers whether music has been detected in the active environmental noise range in the current context." |
| dcon:Nearby Event | "Refers to nearby events that characterise a context instance." |
| dcon:Nearby Group | "Refers to a group of individuals characterising a context instance. Includes both user-defined groups, and ad-hoc groups recognised by the system." |
| dcon:Nearby Person | "Refers to individuals characterising a context instance." |
| dcon:Nearby Place | "Refers to a nearby place type or specific location that characterises a context instance." |
| dcon:Negative Instance | "Situations are characterised through a series of past live context instances, required for its training. This property points to one or more negative instances, i.e., past actual live contexts snapshots during which it was determined that the abstract situation was not active." |
| dcon:Network Speed Value | "States the actual speed value for a network connection in the current context." |
| dcon:Noise Level Value | "Registers an actual environmental noise level value element attribute to an active noise level range in the current context." |
| dcon:Observation | "Each context Element can have one or more observations, e.g. from different source or device. These are linked to each element through the dcon:hasObservation property. In order to inherit the context attributes relevant for the element's type, observations need to be multi-typed. For example, each observation of a nie:InformationElement must also be defined as a nie:InformationElement instance, so that it can inherit all context attributes having the element's type in their domain specification. However, this does not mean that an observation is also an element, but merely that it must have the same type. Other defining properties of an observation are the data source (dcon:recordedBy) and the observation time (dcon:recordedAt). A validity property (dcon:validity) is also provided, and is intended to regulate the time frame during which an observation is considered valid." |
| dcon:Peers | "The peers aspect covers context elements relating to individuals or groups surrounding the user." |
| dcon:Positive Instance | "Situations are characterised through a series of past live context instances, required for its training. This property points to one or more positive instances, i.e., past actual live contexts snapshots during which it was determined that the abstract situation was active." |
| dcon:Precipitation Value | "Registers an actual precipitation value element attribute to an active weather condition in the current context." |
| dcon:Recorded At | "This property stores the time at which each element's observation has been generated, or last updated. Whereas for situations only the time of first occurrence is recorded, live context instances always carry the actual time." |
| dcon:Recorded By | "This property ties each element's observation to the data source that recorded it, specifically data sources of type account (dao:Account subclass) or device (ddo:Device subclass)." |
| dcon:Schedule | "The schedule aspect covers context elements relating to personal scheduling. Typically this includes elements managed by calendaring or task management tools." |
| dcon:Signal value | "States the actual signal strength value for a network connection in the current context." |
| dcon:Situation | "This class represents one or more interpreted user states. A user situation refers to a generalised context graph that is derived from the merging of a number of positive and negative previous live context instances. These instances are linked though dcon:positiveInstance and dcon:negativeInstance. Unlike live context, situations are independent of time and have the possibility to recur. As opposed to live context, situations are also independent of devices and are instead user-centric." |
| dcon:Snowfall Degree Value | "Registers an actual snowfall degree value element attribute to an active weather condition in the current context." |
| dcon:SpaTem | "The spatio-temporal aspect covers context elements relating to the current user's physical locations, movement and time." |
| dcon:Speed Value | "States the actual speed value for a pre-defined user movemement range in the current context." |
| dcon:State | "The state aspect covers context elements relating to the state of either the user or their devices." |
| dcon:Storm Degree Value | "Registers an actual storm degree value element attribute to an active weather condition in the current context." |
| dcon:Temperature Value | "Registers an actual temperature value element attribute to an active weather condition or temperature range in the current context. As this context attribute applies to instances of both dpo:Temperature and dpo:WeatherConditions in the DPO Presence Ontology, the domain has been generalised to the first common DPO superclass. However, the attachment of this attribute to other instances is not considered correct application of the DCON vocabulary." |
| dcon:UV Index Value | "Registers an actual UV index value element attribute to an active weather condition in the current context." |
| dcon:Upcoming Event | "Refers to an upcoming event characterising a context instance." |
| dcon:Upcoming Task | "Refers to an upcoming task characterising a context instance." |
| dcon:Validity Period | "Live context element observations have different validity periods, which mean they remain active only for a specified time interval after they have been sensed or otherwise detected. The value for this property denotes the time when the element observation's relevance expires." |
| dcon:Voices Detected | "Registers how many voices have been detected in the active environmental noise range in the current context." |
| dcon:Wind Scale Value | "Registers an actual wind scale value element attribute to an active weather condition in the current context." |
| dcon:connection | "Refers to a pre-defined traveling direction characterising a context instance." |
| dcon:has Context Attribute | "Amongst other static attributes, context elements (or rather, their observations) have various context-related attributes, i.e. attributes which are bound to a particular time and context. This generic property links this type of attributes to the elements' observations, and is not intended for direct use. Instead, specific subproperties are provided for each supported element type. In order for observations to inherit these subproperties, each needs to be typed according to the element's type (see note in dcon:Observation comment)." |
| dcon:has Live Context | "Links the special live context representation instance to the user. Past live contexts are logged through the use of the DUHO ontology." |
| dcon:has Observation | "As context Elements can have one or more observations, this property links each of them to the respective element." |
| dcon:has Situation | "Links one or more active/current situations to the user. Situations are stored permanently, whether currently active or otherwise." |
| dcon:in Edit mode | "Specifies whether a writeable active file (running on a device) is being edited/written to, in the current context." |
| dcon:is Required | "This property marks those context elements which are necessary for a situation to occurr. If a required element is not active, then the correspoding situation is excluded from candidate active situations." |
| dcon:is Required | "This property marks those context elements whose presence excludes a situation from occurring. If such an element is active, then the correspoding situation is excluded from candidate active situations." |
| dcon:is Writeable | "Specifies whether an active file (running on a device) is in read-and-write (true) or read-only mode (false) in the current context." |
| dcon:is in the Foreground | "Specifies whether an active file(running on a device) is in the foreground (true) or background (false) in the current context." |
