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 * The Ocean InfoHub Project

Introduction

 * Structured Data on the Web
 * Personas
 * Publisher
 * JSON-LD Foundation

Getting Started

 * Connecting to the ODIS Federation

Profiles

 * Thematic Patterns
 * Core 1: Experts and Institutions
 * Core 2a: Documents
 * Core 2b: Datasets
 * Core 3: Spatial Maps
 * Core 4: Projects
 * Core 5: Training
 * Core 6: Vessels
 * Support 1: Spatial Geometry
 * Support 2: Services
 * Support 3: Keywords & Defined Terms
 * Support 4: Languages
 * Support 5: Linking To Principles
 * Support 6: Identifier
 * Support 7: EOVs
 * Support 8: Licenses
 * Support 9: Depth

Aggregation

 * Aggregator
 * Indexing with Gleaner
 * Gleaner CLI Docker
 * Indexing Services
 * Data Services
 * Graph First Approach
 * Indexing Activity Prov
 * Alternatives

Tooling

 * Tooling

Validation

 * Validation

Interfaces

 * Users
 * SPARQL
 * OIH SPARQL
 * APIs

Appendix

 * Appendix
   * Known Issues
   * References
   * Registries
   * Controlled Vocabularies



 * Repository
 * Open issue

 * .md
 * .pdf


THE OCEAN INFOHUB PROJECT


CONTENTS

 * Introduction
 * Guidance for the implementation of the ODIS-architecture
 * Key links to the OIH GitHub repository
   * Authoring Thematic Patterns
   * Publishing
   * Indexing
   * Interfaces and Services




THE OCEAN INFOHUB PROJECT#


INTRODUCTION#

The Ocean InfoHub aims to build a sustainable, interoperable, and inclusive
digital ecosystem for all Ocean data centres. Existing and emerging data systems
are linked, with the ultimate goal of coordinating action and capacity to
improve access to Ocean data and knowledge.

The following video provide brief high level context to the Ocean InfoHub
project.



(read the original ODIS Proposal)

Organizations are increasingly exposing data and resources on the Web. A popular
approach to this is using web architecture to expose structured data on the web
using the schema.org vocabulary. Doing this makes resources discoverable by a
range of organizations leveraging this architecture to build indexes. These
include major commercial indexes, large domain focused groups and community
focused services.

The Ocean Data and Information System (ODIS) will provide a schema.org based
interoperability layer and supporting technology to allow existing and emerging
ocean data and information systems, from any stakeholder, to interoperate with
one another. This will enable and accelerate more effective development and
dissemination of digital technology and sharing of ocean data, information, and
knowledge. As such, ODIS will not be a new portal or centralized system, but
will provide a collaborative solution to interlink distributed systems for
common goals. Together with global project partners and partners in the three
regions, a process of co-design will enable a number of global and regional
nodes to test the proof of concept for the ODIS.

The ODIS-architecture development is being supported by the Ocean InfoHub
Project, and it has been tested initially on IOC and partner databases. However,
the system and standards are open for any institution or initiative that is
interested in accessing the global data ecosystem to adopt and implement.


GUIDANCE FOR THE IMPLEMENTATION OF THE ODIS-ARCHITECTURE#

OIH is providing guidance on the various stages of such an architecture
including authoring, publishing, indexing and interfaces.

The basics of this approach can be described as:

 * Providers publish HTML pages for a resource. This may be a publication,
   course description, research instrument or other. The core themes for OIH are
   described in the Authoring section below.

 * A HTML page then has a small JSON based snippet added to the HTML. This is
   described in the Including JSON-LD in your resource page in the Publishing
   resource below.

 * If you wish a resource to be included in the OIH index, then you need to
   include it in a sitemap file. This is a small XML document that lists links
   to the resources you wish to be part of the index. This approach is shown in
   the sitemap.xml section of the Publishing resource.

 * Once the above is done the publishing phase is over. At this point, OIH or
   other groups can now access and index your resources. OIH is using some
   existing software to index and generate the graph and expose a simple
   reference interface to them. This software is open and available and others
   are free to implement the approach with other software. Links to other
   software are at the repository.

 * The OIH index/graph and a simple interface is current at a development site
   and in a later phase of OIH a production interface will be developed.



Additionally, software to aid in validating and checking the resources is under
development and will be available at the repository. This will aid providers in
expressing the information needed to address interfaces and services of interest
to the community.

The result is a sustainable architecture to address discovery and access to
various resources published by the community and a shared graph of these
resources. That shared graph can be used by all members to link and discover
across groups.


KEY LINKS TO THE OIH GITHUB REPOSITORY#

Interested groups can review material addressing these stages at the OIH GitHub
repository. Links and descriptions of these stages are described below.


AUTHORING THEMATIC PATTERNS#

The ODIS OIH is working across five major thematic areas; Experts and
Institutions, Documents, Projects, Training, Vessels. Examples of these thematic
concepts are being hosted and developed with input from the community.
Additionally, methods for validation and simple tooling for authoring and
testing are hosted at this repository. Alongside these five thematic topics
guidance on connecting services and spatial context on resources.


PUBLISHING#

Guidance on implementation the web architecture approach is also available. This
includes approaches on leveraging robots.txt and sitemaps.xml file for
expressing hosted resources to the net.


INDEXING#

The architecture approach is open and standards based. As such, many
organizations will be able to leverage the authoring and publishing approaches
above to index a providers resources. OIH will be providing reference
implementations of software that can generate the index.


INTERFACES AND SERVICES#

During the development of the OIH a basic reference implementation for an
interface has been generated. This is a development site meant to test and
exercise the above elements. It serves to demonstrate how others could also
implement this approach and how future interfaces could be developed.

An example of the value of implementing a lightweight can be seen with the
Government of Canada:

 * The Federal Geospatial Platform is a intra-governmental data catalogue
   implementing the Harmonized North American Profile of ISO 19115 (HNAP), with
   content exposed externally via OGC CSW (Catalogue Services Web).

 * This content is harvested by the public facing Open Maps platform, which
   includes a catalogue component that is fed in part by the Federal Geospatial
   Platform. DCAT-based metadata is derived from the original ISO 19115 based
   metadata. As this markup is recognized by web crawlers such as those hosted
   by Google, content is harvested and is subsequently visible through Google
   Dataset Search. Furthermore, the cited publication for the data is also link
   via a complementary link to Google Scholar.












next

Structured Data on the Web

Contents
 * Introduction
 * Guidance for the implementation of the ODIS-architecture
 * Key links to the OIH GitHub repository
   * Authoring Thematic Patterns
   * Publishing
   * Indexing
   * Interfaces and Services

By IODEPO

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