GeoBliki's Blog: Tag workflows

OWS-5 Interoperability Demo

Patrice Cappelaere — Fri, 28 Mar 2008 17:17:00 +0000

St Louis, Mar 28, 2008

Just completed a full week of OGC meetings in St Louis. This is the conclusion of OWS-5 (OGC Web Services Interoperability Demo #5) with more than 30 participants.

The NASA SensorWeb is deeply involved in Earth Observation, Natural Resources & Environment. We presented our current ROA-based architecture used to support many pilots and operational demonstrations.

Flip through the presentation on Slideshare and

Watch the first 7mn video here

or this one here as a more technical oriented version (10mn .mov)

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Workflows, RESTful OGC Services and Identity 2.0

Patrice Cappelaere — Sun, 25 Nov 2007 15:33:00 +0000

Generating just-in time data products for first responders require the chaining of many web services using workflows.

Our interesting challenge is multi-fold. First responders from various organizations will need access to data provided by other organizations in case of emergencies. Single sign-on is a must. Trusted relationships between organizations is critical to grant access of sensitive data or assets to remote users in a seamless manner.

Access profiles may need to be exchanged at login to determine the access rights of those incoming users.

With the OGC, we are working on RESTful APIs for SensorWeb Enabled Data Nodes. Fairly sophisticated workflows will access remote web services to task satellites, process the data and deliver custom products to the end-users. This needs to be done securely on behalf of the end-users that may grant temporary or permanent access to costly resources to those workflows.

As part of OWS-5, we will be demonstrating that capability fairly shortly. This will require the tight integration of Identity standards such as OpenID 2.0 and the emerging OAuth.

This is part of our effort to provide a simpler but secure resource oriented architecture (ROA) that will scale up to support a broader community in a federated environment.

Transforming Disruption into Advantage (TM)

Patrice Cappelaere — Tue, 30 Oct 2007 21:22:00 +0000

This is the trademark of Transformation + Innovation. i had the priviledge to present a few slides during a breakfast presentation on a RESTful WfXML: A User Centric Resource-Oriented Approach to Workflows as they apply to the orchestration of OGC services with some examples taken during the recent South California fires.

A very interesting talk from Dennis Wisnosky, CTO of the DoD Business Mission Area on Agile Architectures…talking about a challenge for DoD!

This current work is sponsored by the OGC (as part of OWS-5) and NASA. It is also getting a lot of attention from the Workflow Management Coalition (WfMC) as a complementary approach to the existing SOAP-based WfXML API for Workflow Interoperability.

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