Latest in open geospatial standards and pilot projects

July 16th, 2018, Published in Articles: PositionIT

The last few weeks have been busy for the Open Geospatial Consortium (OGC), an international consortium that develops publicly available geospatial standards, which has announced a number of initiatives and candidate standards to support interoperable solutions that geo-enable the web, wireless and location-based services, and mainstream IT.

Borehole and associated data interoperability experiment

Interested parties are invited to participate in the consortium’s borehole and associated data interoperability experiment – the Borehole IE. Despite various geoscientific domain using boreholes to directly measure subsurface features, each have their own set of methods and interests. Even though several standards already exist to describe a borehole, its associated data and their position along it, they all restrict themselves to a specific viewpoint. Based on a variety of use cases, Borehole IE will define a domain-neutral semantic (vocabulary) for a general concept of borehole and produce an OGC Engineering Report summarising the overall cross-domain, inter-standard findings and recommendations for a best practice implementation.

Indoor mapping and navigation pilot

The OGC welcomes proposals for its Indoor Mapping and Navigation Pilot Initiative, set to benefit first responders in particular. The initiative leverages standardised, open GIS frameworks, data models, and data exchange formats (e.g. CityGML, IndoorGML, Web Processing Service, Web Feature Service) to stimulate the rapid generation of prototypes and demonstrations that address the key activities. In addition, best practices and lessons learned from the pilot will be captured in engineering reports and forwarded to the standards committees under the OGC and ISO for consideration.

Underground infrastructure pilot project

The Model for Underground Data Definition and Interchange (MUDDI) ETL-Plugfest Workshop takes place in the US from 24 to 25 July 2018. MUDDI is being developed as an integration model to support a range of critical underground infrastructure and environment information. The workshop aims to evaluate the model through data modelling and transformation exercises using datasets of varying formats and schemas from several municipal locations. Outcomes will include an updated MUDDI model, model implementation guidance, feedback on feasibility and utility from software developers, and refined data application scenarios for incorporation into subsequent OGC Pilot activities. The workshop will also review a draft version of a Cost Benefit Assessment of Subterranean Information Management.

Urban-themed location powers event

The OGC’s Location Powers event takes place in Singapore from 25 to 26 September 2018. The capacity to collect and share high-quality location data is key to understanding urban environments and helping improve the lives of citizens. This event will explore areas such as transport, public safety, resilience and sustainability, building modelling, underground infrastructure, sensors and the IoT, as well as big data and analytics. Outcomes of the workshop will feed an OGC white paper or discussion paper.

Tile matrix set candidate standard

A tile matrix set is useful across many applications for sharing geospatial information. The Tile Matrix Set candidate standard, which is open for comment until 26 July 2018, decouples the concept of a tile matrix set from the WMTS standards. This candidate standard also adds an informative list of commonly used tile matrix sets with XML and JSON schemas and examples. A future tile matrix set standard is anticipated to impact revisions of other OGC standards such as GeoPackage and the next version of WMTS.

3D tiles candidate standard

The 3D Tiles Specification 1.0 candidate community standard, which is designed for streaming large heterogeneous 3D geospatial datasets for visualisation, is open for comment. 3D Tiles support 3D models such as point clouds, 3D buildings, trees, imagery, BIM/CAD models, and terrain. The standard defines a spatial data structure and a set of tile formats designed for 3D and optimised for streaming and rendering. The tile formats are Batched 3D models (3D buildings, terrain, BIM/CAD models, and more); Instanced 3D models (for trees, bolts, valves, and so on); Point clouds (including per-point attributes) and Composite (a tile of tiles to allow aggregation). Comments due by 1 August 2018.

Standard for geographic information in datasets and databases

The OGC seeks public comment on Part 1 of the Features and Geometry candidate standard. Derived from and extending ISO 19109, it describes how geographic information held in datasets and databases using a “feature model” are structured, created, stored, queried, and manipulated. The candidate standard describes semantically-structured datasets aimed to represent reality, not the specific needs of a single application. This shifts the support of interoperability from creating transfer formats, to creating interoperable data stores that are usable by a range of applications. The multiple-part standard is being developed in conjunction with ISO / TC 211 and will impact or replace ISO 19107, 19109, and 19125. Comments are due by 27 July 2018.

Web feature service modernised

The latest version of the Web Feature Service standard is open for public comment. WFS 3.0 aligns with the current architecture of the web and the joint OGC-W3C Spatial Data on the Web Best Practices. It offers the capability to retrieve, create, modify and query spatial data on the web. Key changes relate to its architecture, encodings, reuse, modularisation, schemas, and security. The standard is a multi-part document. This first part specifies the core capabilities that every WFS has to support and is restricted to read-access to spatial data. Additional parts will address additional capabilities. An overview of the WFS3.0 modernisation is available in the GitHub repository: The next version of WFS – an overview. Submissions are open until end of 2018.

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