interoperability issues and challenges for iot services and resources

Interoperability issues and challenges for IoT

Services and Resources

Payam Barnaghi

Centre for Communication Systems Research

University of Surrey

Guildford, UK

IoT Interoperability workshop

26th March 2012, Paris

IoT.est – a quick snapshot

• IoT.est will develop a test-driven service creation environment

(SCE) for Internet of Things enabled business services.

• The SCE will enable the acquisition of data and

control/actuation of sensors, objects and actuators.

• The project will provide the means and tools to define and

instantiate IoT services that exploit data across domain

boundaries;

• IoT.est will facilitate run-time monitoring and will enable

autonomous service adaptation to environment/context and network parameter (e.g. QoS) changes.

IoT.est: The Key issues

• IoT enabled Business Services: Semantic Description

• Service Composition: A Knowledge based Approach

• Service Components: Re-usable, Interoperable and Adaptive

• Abstraction: Mapping to Heterogeneous Platforms and Large

Scale Deployment

• Testing (Design Time): Automated Generation of Tests

• Monitoring (Run-Time): Context-aware Service Adaptation

Requirements

• Structured representation of identified IoT concepts

– Machine-interpretable descriptions

– Reasoning mechanisms

• Homogeneous access mechanism to heterogeneous objects

with diverse capabilities

• Automated interactions and horizontal integration with existing

applications

Modelling Things and IoT Resources

• Resource model

– Gateway, sensors, processing resources

• Entity model

– Physical world objects

• Features of interest for each entity

• Service model

– IoT services and interfaces

What are the challenges?

• The models provide the basic description frameworks, but

alignment between different models and frameworks are

required.

• Semantics are the starting point, reasoning and interpretation

of data is required for automated processes.

• Real interoperability happens when data/services from

different frameworks and providers can be interchanged and used with minimised intervention.

What are the practical steps?

• Linked data approach is a promising way of integrating data

from different sources and interlinking semantic descriptions.

• Alignment between different description models for IoT

Services/Resources/Entities;

• Proposing reference and abstract models for semantic

descriptions in IoT (e.g. similar to W3C SSN approach).

IoT.est ontology- first draft

3/29/2012 Confidential 8

9

W3C SSN Ontology

makes observations

of this type

where it is

What it

measures

units

SSN-XG ontologies

SSN-XG annotations

Thank you!

IoT.est project: Internet of Things Environment for Service Creation and Testing

http://ict-iotest.eu/iotest/