Internet of Things Architecture

Appendices

A Terminology

This appendix aims at defining the new terminology introduced by this
document and at updating the existing terms if their meaning has been refined
during the editing of this document. The changes introduced by this document
will be applied to the IoT-A terminology webpage at http://www.iot-
a.eu/public/terminology. Please, always refer to the online version of the
glossary, since it contains a more complete version of the glossary and, after
new deliverables got released, new definitions may have superseded these
ones.

Also, words written in italic in the Definition column own an entry in the table
providing their specific definition in IoT context.

Term Definition^ Source

Active Digital
Artefact

Active Digital Artefacts are running software

applications, agents or Services that may access other

Services or Resources.

Internal

Active Digital Entity Any type of active code or software program, usually
acting according to a Business Logic. Obsolete: the
term to be used is Active Digital Artefact

Internal

Actuator Special Device that executes a change in the physical
state of one or more Physical Entities.

Internal

Address An address is used for locating and accessing – ―talking
to‖ – a Device, a Resource, or a Service. In some
cases, the ID and the Address can be the same, but
conceptually they are different.

Internal

Application
Software

―Software that provides an application service to the

user. It is specific to an application in the multimedia

and/or hypermedia domain and is composed of

programs and data‖.

[ETSI- ETR173]

Architectural
Reference Model

The IoT-A architectural reference model follows the

definition of the IoT reference model and combines it

with the related IoT reference architecture.

Furthermore, it describes the methodology with which

the reference model and the reference architecture are

derived, including the use of internal and external

stakeholder requirements.

Internal

Architecture ―The fundamental organization of a system embodied in
its components, their relationships to each other, and to
the environment, and the principles guiding its design
and evolution‖.

[IEEE

Architecture]

Architecture Vision ‖A high-level, aspirational view of the target
architecture.‖

[TOGAF 2008]

Aspiration ―Stakeholder Aspirations are statements that express [E-FRAME]