1. GSN Quality Assurance System Concepts of Operations GSN-QC Coordination Meeting IRIS DMC - 11/16/2011

2. GSN QAS Implementation Plan Detect, Document, Rectify, Share Monitor Data, Metadata, and Operations Standardized across GSN Detect, document and rectify using documented, objective, reproducible procedures Review procedures and metrics Inward facing (operations) and outward facing (users) components User Feedback mechanism Community monitoring (GSN and DMS SC’s) Strategic guidance on operations

3. Roles and Responsibilities GSN Management Network Operators Data Management Center IRIS Governance (GSN, DMS SC’s)

4. GSN Management Review Monthly and Quarterly QC reports Review Maintenance plan with NetOps Report to SC biannually Coordinate with SC on Budgets and Strategies required for QA system Report to IRIS Board (w/SC chair) on GSN Quality Coordinate with IS and DS directors GSN and DMS SC guidance on metrics and DMC-hosted QC tools

5. Network Operators ASL and IDA Operations and DCC’s Provide “inward” facing QC metrics Operations driven Archive QC time series (metrics) Propose, review and update metrics Incorporate metrics into maintenance action plan metrics feed the station management process Coordinate action plans with GSN Mgt and GSN SC Standardize across NetOps and DCC’s Share with DMC “outward” facing data, as appropriate

6. Data Management Center Provide “outward” facing QC metrics Provide framework for QC metric calculations Share metrics with “inward” operations Archive time history of metrics Incorporate input from GSN mgt, NetOps, and SC’s on metrics Provide user feedback mechanism

7. IRIS Governance Review Quarterly and Biannual QC reports Biannually: Generate written summary of recommendations to GSN mgt and Net Ops Annually: Provide strategic guidance to GSN management and Network Operators on GSN data quality issues – particularly with chronic/expensive stations. Do these stations contribute to meeting the goals of the GSN? SC Chair: Report to the Board of Directors (SC chair and GSN program manager) on the state of the GSN Quality.

8. Multi-track process Track 1: “Grab the low hanging fruit” Begin work immediately and incorporate tools as they exist or come online Track 2: As new framework comes online, look to changes in implementation required ie MUSTANG and associated post- processing that may be required Process evolution As new tools, metrics, goals evolve, so must the QAS