{"id":13341708,"url":"https://github.com/oeg-upm/eWoT","last_synced_at":"2025-03-11T22:31:37.606Z","repository":{"id":73967382,"uuid":"204488139","full_name":"oeg-upm/eWoT","owner":"oeg-upm","description":"eWoT enables semantic interoperable IoT ecosystems","archived":false,"fork":false,"pushed_at":"2020-10-15T13:42:32.000Z","size":83132,"stargazers_count":0,"open_issues_count":0,"forks_count":0,"subscribers_count":8,"default_branch":"master","last_synced_at":"2024-10-24T10:07:15.084Z","etag":null,"topics":["discover","distributed-access","semantic-interoperability","semantic-web","sparql","web-of-things"],"latest_commit_sha":null,"homepage":"","language":"Java","has_issues":true,"has_wiki":null,"has_pages":null,"mirror_url":null,"source_name":null,"license":"apache-2.0","status":null,"scm":"git","pull_requests_enabled":true,"icon_url":"https://github.com/oeg-upm.png","metadata":{"files":{"readme":"README.md","changelog":null,"contributing":null,"funding":null,"license":"LICENSE","code_of_conduct":null,"threat_model":null,"audit":null,"citation":null,"codeowners":null,"security":null,"support":null,"governance":null}},"created_at":"2019-08-26T14:02:58.000Z","updated_at":"2020-10-15T13:42:36.000Z","dependencies_parsed_at":"2023-03-06T22:30:32.095Z","dependency_job_id":null,"html_url":"https://github.com/oeg-upm/eWoT","commit_stats":null,"previous_names":[],"tags_count":1,"template":false,"template_full_name":null,"repository_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/oeg-upm%2FeWoT","tags_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/oeg-upm%2FeWoT/tags","releases_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/oeg-upm%2FeWoT/releases","manifests_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories/oeg-upm%2FeWoT/manifests","owner_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners/oeg-upm","download_url":"https://codeload.github.com/oeg-upm/eWoT/tar.gz/refs/heads/master","host":{"name":"GitHub","url":"https://github.com","kind":"github","repositories_count":243125202,"owners_count":20240263,"icon_url":"https://github.com/github.png","version":null,"created_at":"2022-05-30T11:31:42.601Z","updated_at":"2022-07-04T15:15:14.044Z","host_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub","repositories_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repositories","repository_names_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/repository_names","owners_url":"https://repos.ecosyste.ms/api/v1/hosts/GitHub/owners"}},"keywords":["discover","distributed-access","semantic-interoperability","semantic-web","sparql","web-of-things"],"created_at":"2024-07-29T19:25:43.451Z","updated_at":"2025-03-11T22:31:32.598Z","avatar_url":"https://github.com/oeg-upm.png","language":"Java","funding_links":[],"categories":[],"sub_categories":[],"readme":"# eWoT\n\neWoT is an implementation that enables semantic interoperability for an IoT ecosystem. It relies on Thing Descriptions (TD) to profile the different IoT devices, and WoT-Mappings to translate their heterogeneus data into a normalised RDF modelled with a specific ontology. The ontologies endow for this purpose are the [Thing Description](http://iot.linkeddata.es/def/wot/index-en.html) and the [WoT-Mapping](http://iot.linkeddata.es/def/wot-mappings/index-en.html); nevertheless they can be extended with any other to enhance contextual information of the IoT device.\n\nRelated paper: https://www.mdpi.com/1424-8220/20/3/822\n\n## Quickstart\n\nRun the client jar with the following command\n\n````\njava -jar ewot.jar --server.port=9000 --server.repository=http://localhost:32768/repositories/discovery\n````\n\n* The statement *--server.port=9000* specifies that the client will be running on the port 9000. The port can be changed freely\n* The statement *--server.repository=http://localhost:32768/repositories/discovery* specifies the URL of a SPARQL endpoint where all the descriptions that this client can discover will be allocated. This can be changed freely as far as the triple store implements SPARQL 1.1\n\n## Registering a Thing Description\n\nIn order to include a new IoT device in the ecosystem, making it interoperable, a user must register in the SPARQL endpoint that eWoT relies on a Thing Description (TD). The thing description must be stored in a named graph which name is the subject that has the type **core:Thing**. The TD must contain a specification of where ther IoT device data is, by means of the Web of Things Thing Description ontology, and also, specify how such data is translated by means of a WoT-Mapping. Find below an example of TD with the WoT-Mappings.\n\n## Issuing a SPARQL query in the ecosystem\n\nIn order to transparently query the ecosystem a SPARQL query must be issued to the endpoint *http://localhost:9000/sparql*. Alternativelly, if an user navigates with the browser to the very same address a GUI will be displayed where the SPARQL query could be written and its results displayed.\n","project_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Foeg-upm%2FeWoT","html_url":"https://awesome.ecosyste.ms/projects/github.com%2Foeg-upm%2FeWoT","lists_url":"https://awesome.ecosyste.ms/api/v1/projects/github.com%2Foeg-upm%2FeWoT/lists"}