11[ ![ FIWARE Core Context Management] ( https://nexus.lab.fiware.org/repository/raw/public/badges/chapters/core.svg )] ( https://github.com/FIWARE/catalogue/blob/master/core/README.md )
2- [ ![ NGSI LD] ( https://img.shields.io/badge/NGSI-LD-d6604d.svg )] ( https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.03 .01_60/gs_cim009v010301p .pdf )
2+ [ ![ NGSI LD] ( https://img.shields.io/badge/NGSI-LD-d6604d.svg )] ( https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.04 .01_60/gs_cim009v010401p .pdf )
33[ ![ JSON LD] ( https://img.shields.io/badge/JSON--LD-1.1-f06f38.svg )] ( https://w3c.github.io/json-ld-syntax/ )
44
55** Description:** This tutorial introduces linked data concepts to the FIWARE Platform. The supermarket chain’s store
@@ -25,7 +25,7 @@ The tutorial uses [cUrl](https://ec.haxx.se/) commands throughout, but is also a
2525The introduction to FIWARE [ Getting Started tutorial] ( getting-started.md ) introduced the
2626[ NGSI v2] ( https://fiware.github.io/specifications/OpenAPI/ngsiv2 ) interface that is commonly used to create and
2727manipulate context data entities. An evolution of that interface has created a supplementary specification called
28- [ NGSI-LD] ( https://forge.etsi.org/swagger/ui/?url=https://forge.etsi.org/gitlab /NGSI-LD/NGSI-LD/raw/master/spec/updated/full_api.json )
28+ [ NGSI-LD] ( https://forge.etsi.org/swagger/ui/?url=https://forge.etsi.org/rep /NGSI-LD/NGSI-LD/raw/master/spec/updated/generated /full_api.json )
2929as a mechanism to enhance context data entities through adding the concept of ** linked data** . This tutorial will
3030introduce the background of the ideas behind the new interface and compare and contrast how to create and manipulate
3131data entities as linked data.
@@ -84,7 +84,7 @@ Click on the image above to watch a video describing the basic concepts behind J
8484** NGSI-LD** is an evolution of the ** NGSI v2** information model, which has been modified to improve support for linked
8585data (entity relationships), property graphs and semantics (exploiting the capabilities offered by JSON-LD). This work
8686has been conducted under the ETSI ISG CIM initiative and the updated specification has been branded as
87- [ NGSI-LD] ( https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.03 .01_60/gs_cim009v010301p .pdf ) . The main constructs
87+ [ NGSI-LD] ( https://www.etsi.org/deliver/etsi_gs/CIM/001_099/009/01.04 .01_60/gs_cim009v010401p .pdf ) . The main constructs
8888of NGSI-LD are: _ Entity_ , _ Property_ and _ Relationship_ . NGSI-LD Entities (instances) can be the subject of Properties
8989or Relationships. In terms of the traditional NGSI v2 data model, Properties can be seen as the combination of an
9090attribute and its value. Relationships allow to establish associations between instances using linked data.
@@ -162,7 +162,7 @@ Currently, the Orion Context Broker relies on open source [MongoDB](https://www.
162162persistence of the context data it holds. Therefore, the architecture will consist of two elements:
163163
164164- The [ Orion Context Broker] ( https://fiware-orion.readthedocs.io/en/latest/ ) which will receive requests using
165- [ NGSI-LD] ( https://forge.etsi.org/swagger/ui/?url=https://forge.etsi.org/gitlab /NGSI-LD/NGSI-LD/raw/master/spec/updated/full_api.json )
165+ [ NGSI-LD] ( https://forge.etsi.org/swagger/ui/?url=https://forge.etsi.org/rep /NGSI-LD/NGSI-LD/raw/master/spec/updated/generated /full_api.json )
166166- The underlying [ MongoDB] ( https://www.mongodb.com/ ) database :
167167 - Used by the Orion Context Broker to hold context data information such as data entities, subscriptions and
168168 registrations
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