scope:

The present document discusses the concepts which are foundational for cross-cutting Context Information Management and their application to a selection of Use Cases from the domains of Smart Cities, Smart Agrifood and Smart Industry. These areas of application, together with the general area of Internet of Things (IoT) technology and services, are expected to especially benefit from usage of cross-cutting (cross domain) context information, and from a set of specifications for the NGSI-LD API supporting them. Note that the name "NGSI-LD" has evolved during years of discussions and is no longer an acronym with specific meaning.

The present document covers the following:

• A definition of terms relevant to cross-cutting Context Information Management.

• An introduction to the notions of context information management and its potential role in enabling services in cross-cutting inter-domain areas, for example Smart Cities, Smart Agrifood, and Smart Industry.

• A motivation for this project's key goal, i.e. defining an NGSI-LD API.

• A reference diagram illustrating possible architectures and functional entities.

• A set of high level Use Cases which can potentially be supported using NGSI-LD API.

• A subset of detailed Use Cases (scenarios) illustrating potential information flows among functional entities.

• A summary of requirements extracted from the Use Case analysis. Note that most of the requirements have already been considered in defining the NGSI-LD API [i.9].