(see also Eclipse Vorto’s documentation) of a device A feature may conform to a definition Mapping Vorto function block elementsĪ Vorto function block consists of different sections defining state and capabilities Thus, it is a consistent, self-contained set of (potentially re-usable) properties and capabilities. Information models represent the capabilities of a particular type of device entirely.Īn information model contains one or more function blocks.Ī function block provides an abstract view on a device to applications that want to employ the devices’ functionality. Warning: The Eclipse Vorto project is no longer actively maintained, so it can be seenĭitto’s feature definition may be mapped to the Vorto type system which is defined by so called “information models” Information models describe the attributes and the capabilities of real world devices. Vorto is an open source tool that allows to create and manage technology agnostic, abstract device descriptions, Then be interpreted as the link to an Eclipse Vorto “function block” model. The link to Eclipse VortoĪ feature definition may also take the form ::, those 3 values can Interpreted as the link to a W3C WoT (Web of Things) Thing Model in JSON-LDįor a detailed explanation how WoT and its concepts link to Ditto, please consult theĭedicated WoT integration documentation. If a feature definition has the form of an HTTP(s) URL, this URL pointing to a resource may be before sending a property to Ditto or before sending a message. Must follow the type defined in the definition. To describe data structures and supported messages of Ditto features.Ĭurrently, Ditto does not ensure that the properties or desiredProperties of a feature or its supported messages You may either use the official W3C Web of Things (WoT) standard orĮclipse Vorto (which defines a non-standardized DSL for defining digital twin models) Note: Ditto does not contain a type system on its own and does not specify how to describe types. The properties of aįeature containing a definition identifier ":lamp:1.0.0" can be expected to follow the structureĭescribed in the lamp type of namespace semantically versioned with version 1.0.0. in that case the “knowledge” where to look up the definition must be managed somewhere elseĪ definition can be seen as a type for features.or a namespace, name and version separated by colons: ::.in order to define that the Feature is described by WoT (Web of Things) Thing Models) ( messages related to features) can be expected from such a feature.Ī feature’s definition is a list of definition identifiers containing (in properties), and which behavior/capabilities Feature definitionĭitto supports specifying a definition for a feature in order to document how a feature’s state is structured Such functionality will come with future releases. for the time being, Ditto does not implement their further processing. Please note however, that besides persisting the desired properties, and indexing the fields for search requests, filteringĮtc. to manage the status, the configuration or any fault information.įeature desired properties are represented as one JSON object.Įach desired property itself can be either a simple/scalar value or a complex object allowed is any JSON value. These desired propertiesĬan be categorized, e.g. The desiredProperties related to Features are managed in form of a list of properties. They are a tool to represent the desired target state Feature desired propertiesĭesired properties represent the desired state of the properties. to manage the status, the configuration or any fault information.įeature properties are represented as one JSON object.Įach property itself can be either a simple/scalar value or a complex object allowed is any JSON value. The data related to Features is managed in form of a list of properties. Results when retrieving or searching for things/features. The Feature ID may not be the wildcard operator * because it has a special meaning and can lead to unexpected those for Uniform Resource Identifiers (URI)). Due to this fact we strongly recommend using a Within a Thing each Feature is identified by a unique string - the so-called Feature ID.Ī Feature ID often needs to be set in the path of an HTTP request. The feature model in API version 2: Feature ID Announcement for connection gracefully closedĪ Feature is used to manage all data and functionality of a Thing that can be clustered in an outlined technicalįor different contexts or aspects of a Thing different Features can be used which are all belonging to the same ThingĪnd do not exist without this Thing.You might want to choose a released version. Important: This documentation reflects the latest 'development'.
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