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Open Geospatial Data, Software and Standards

, 2:18

Geospatial Sensor Web - Concepts, Technologies and Applications

Abstract

The Open Geospatial Consortium OGC has conducted much work in the past on event-based models and architectures. However, the current OGC standard baseline only supports synchronous web service capabilities, which have insofar primarily addressed the request-reply model, where a client makes a request and the server usually responds synchronously, with either the requested information or a failure. Recently, the OGC Publish-Subscribe 1.0 Standard has introduced an abstract model for publish-subscribe message exchange, a long-awaited building block in the OGC suite of geospatial standards. The publish-subscribe pattern is distinguished from the request-reply one by the asynchronous delivery of messages and the ability for a client to specify an ongoing, persistent expression of interest. In this work, we report on the experimentation of the new OGC Publish-Subscribe 1.0 Standard in the context of the OGC Testbed-12 initiative and related fields of work, particularly in the application domains of Sensor Web and Aviation. We illustrate and discuss the enhancements in comparison to previous OGC service architectures, highlighting the benefits of introducing the PubSub 1.0 Standard into the considered systems and their workflows.

AbbreviationsAIXMAeronautical Information Exchange Model

AMQPAdvanced Message Queuing Protocol

AMXMAerodrome Mapping Exchange Model

ATMAir Traffic Management

CSWOGC Catalogue Service for the Web

ESEvent Service

FAAFederal Aviation Administration

FIXMFlight Information Exchange Model

HTMLHypertext Markup Language

JMSJava Message Service

KVPKey-Value Pair

LSALarge-Scale Analytics

MEPMessage Exchange Pattern

NASNational Airspace System

OAI-PMHOpen Archives Initiative Protocol for Metadata Harvesting

OGCOpen Geospatial Consortium

OWSOGC Web Services

PubSubOGC Publish-Subscribe 1.0 Standard

SESOGC Sensor Event Service

SOSOGC Sensor Observation Service

SSEServer-Sent Events

SWESensor Web Enablement

SWIMSystem Wide Information Management

WCSOGC Web Coverage Service

WFSOGC Web Feature Service

WNSOGC Web Notification Service

WPSOGC Web Processing Service

WS-NOASIS Web Services Notification

XMLExtensible Markup Language

XMPPExtensible Messaging and Presence Protocol

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Author: Lorenzo Bigagli - Matthes Rieke

Source: https://link.springer.com/







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