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|Definitionskos:definition||OGC Web Feature Service (WFS) 3.0 is a revision of the WFS standard that proposes a modernized service architecture, that follows the current Web architecture, has a focus on the developer experience, supports the OpenAPI specification, and modularizes WFS into building blocks for fine-grained access to spatial data that can be used by an Application Programming Interface (API) for data.This document reviews the work that proposes a next generation of OGC web services (NextGen services or Next Generation APIs) from the perspective of supporting complex three-dimensional (3D) data or complex data schemas. The goal is to identify the best service solution for these particular needs, whether the results are WFS 3.0 extensions or other approaches. In this context the approach of the NextGen services is not of monolithic web services, but Web API building blocks. This is an important point. The same API should be able to support requirements that currently require separate OGC web services, e.g. a WFS and a 3D Portrayal Service (3DPS).The purpose of this work is not to preempt other next-generation discussions taking place in OGC but rather to inform and complement that work.The report includes proposals on how to extend the NextGen service architecture with API building blocks for complex data, complex queries and 3D portrayal. WFS 3.0, Part 1, is used as the starting point for the NextGen service architecture. The proposals are based on existing requirements and use cases as well as existing support for developers to simplify implementation.The work has found no general issues with migrating current WFS, 3DPS, Web Map Tile Service (WMTS) and Web Map Service (WMS) capabilities to the NextGen architecture. On the contrary, the NextGen approach improves the consistency of the interface and removes redundancies (e.g., between the feature access in WFS and the feature info requests in the other standards).|
|labellabel||OGC Testbed-14 Next Generation APIs: Complex Feature Handling Engineering Report|
|Alternative LabelaltLabel||Next Generation APIs: Complex Feature Handling Engineering Report|
|OGC document typedoctype||Public Engineering Report|