TWiki> IVOA Web>IvoaEvents>InterOpNov2025>SessionDetails (2025-10-31, MarkTaylor) EditAttach

DSP Sessions:

15th November 2025 9:00-10:30 CET

LocationSorted ascending Time
Beijing, China Sat, 15 Nov 2025 at 4:00 PM
Bristol, United Kingdom Sat, 15 Nov 2025 at 8:00 AM
Paris, France Sat, 15 Nov 2025 at 9:00 AM
Perth, Australia Sat, 15 Nov 2025 at 4:00 PM
UTC, Time Zone Sat, 15 Nov 2025 at 8:00 AM
Victoria, Canada Sat, 15 Nov 2025 at 00:00 AM
Washington DC, USA Sat, 15 Nov 2025 at 4:00 AM

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Wednesday June 4 @09:00 EDT: Room 2309
Speaker Title Time Abstract Material
Dave Morris Defining ExecutionBroker Interfaces with OpenAPI: Lessons from Machine-Readable IVOA Standards

15'

9:00-9:15

 		The ExecutionBroker protocol is central to distributed job execution in the IVOA ecosystem. Traditionally, IVOA protocols are described in textual standards, which can leave room for interpretation. We are exploring the use of OpenAPI to define ExecutionBroker interfaces in a machine-readable way, enabling clearer, more precise specifications and potential automatic validation. While this approach has significant benefits, it also poses challenges in ensuring that real-world implementations align with the standard. In this talk, we will share our experience defining and testing ExecutionBroker with OpenAPI, highlighting successes, difficulties, and lessons learned for the wider IVOA community.  
Dave Morris ExecutionBroker in SRCNet: Implementation Status Update

5'

9:15-9:20

 		We provide a brief update on the implementation of the ExecutionBroker protocol within the SKA Regional Centres Network (SRCNet). This short talk summarizes current progress, deployment milestones, integration with distributed infrastructure, and practical experiences from the ongoing rollout. The update aims to inform the community about the readiness of ExecutionBroker for real-world federated workflow execution and highlight next steps for broader adoption.  
Sara Bertocco and Dave Morris Discussion: ExecutionBroker in Context: Lessons from Distributed Workflow Execution

15'

9:20-9:35

 		ExecutionBroker defines a protocol for offering and managing workflow executions or interactive sessions across distributed and federated systems, such as those in the IVOA. In this talk, we place ExecutionBroker in a broader context by examining experiences from related efforts, including WLCG, pivot jobs, execution queues, and interface translations. We discuss how these examples inform best practices, highlight common challenges in distributed workflow execution, and draw lessons that can guide the ongoing development and adoption of ExecutionBroker within the IVOA ecosystem.  
Mark Taylor AuthVO Document Status

15'

9:35-9:50

 		The AuthVO document describes how VO services can advertise authentication methods to VO clients, especially non-browser clients. We briefly recap its content, presented at the last Interop, and note minor changes since then. The main unsolved issue with the current draft is support for OAuth 2.0-based authentication. We introduce the problem and outline progress so far in addressing it.  
Jesus Salgado Security Challenges in AuthVO: Managing Authorization Across Methods

15'

09:50-10:05

 		AuthVO defines multiple authorization methods to support secure access to IVOA services in distributed environments. This talk examines the security challenges across these methods, including bearer tokens, delegated credentials, and other approaches standardized in AuthVO. We highlight practical considerations for token issuance, lifetimes, revocation, and secure handling. The session aims to provide guidance for ensuring robust, interoperable security while adopting the full range of AuthVO authorization mechanisms.  
All AuthVO Security and Standardization: Open Discussion and Brainstorming

25'

10:05-10:30

 		This session invites the community to explore security aspects of AuthVO and reflect on the standard as a whole. Topics for discussion include emerging threats, best practices for secure implementation, potential improvements to authorization methods, and strategies for broader adoption across IVOA services. The goal is to foster an open exchange of ideas, share experiences, and identify priorities for strengthening both the security and usability of AuthVO in the distributed virtual observatory ecosystem.  
Notetakers: Collaborative

notes: _( live notes, should expire around end of ****)_*

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Topic revision: r4 - 2025-10-31 - MarkTaylor
 
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