See also: IRC log
<trackbot> Date: 20 May 2015
<Sebastian> trackbot-ng, start meeting
<trackbot> Meeting: Web of Things Interest Group Teleconference
Meeting Minutes
Souleiman to prepare a presentation on the JSON-LD and send by email
Soumya presented on IETF CoRE Link Format
which could be seen as a thing description language
CORE is for constrained RESTful environments
so it realizes REST over constrained nodes
CORE describes web linking via a link format
it can be used to describe hosted resources, and relationships between them
an interesting concept in CORE is its directory of resources
definitions in CORE are: resource type, interface definition, and function sets
the software implementation can be done in JSON
a description file is < 1 KBin size (lightweight)
The presentation by Soumya is based mainly on IETF RFC 6690, https://www.rfc-editor.org/rfc/pdfrfc/rfc6690.txt.pdf
Some questions on the actual attributes such as name, and what their values could be
Soumya to send some more explaining materials via email
Danh: the description should constitute both the protocols and the data with its context
So data should be self-describing
A point from Sebastian is on the actuators which is a point we could discuss later.
Danh presented on the OpenIoT project
the background for OpenIoT is the need to provide a unified data presentation across systems related to IoT
the barrier is that systems use their own data presentation
The approach is based on Web standards such as RDF, and HTTP as protocols
Nodes or things are described by URIs
and then RDF triples add facts about these things
Data can be serialized in various formats includeing JSON-LD, text, XML
Global schema as a common understanding: e.g. schema.org, SKOS, sensor ontology
related community groups: RDF stream processing
RDF with temporal semantics
a core concept in OpenIoT is that dynamic data and static data are combined using the unified data representation
An example is the use of the SSN ontology which allows the description of sensors meta data and also of sensor readings
Danh mentioned the Spatial Data on the Web Working Group which would be good to have a presentation about later on
Sebastian to contact Kerry Taylor on that topic
Conclusions and progress in the task force which would be published on the web page
<rkawada> Thank you