1. 1 Emerging Issues

2. 2 Enterprise Data Warehouse (EDW)

3. 3 Agenda  Architecture Overview  Project Plan Overview  LodeStar Extract Transition Enterprise Data Warehouse (EDW) Overview

4. 4 The EDW consists of three major architectural components, all optimally designed for stability, security and recoverability. Replicated Source System (RSS)  Captures insert, update, and delete activity in the source system  Maintains a ‘mirror’ of the source system – does not store historical data  Significantly reduces impact on the source system  Provides near real-time reporting

5. 5 Enterprise Data Warehouse (EDW) Overview Operational Data Store (ODS)  Provides ‘As Of’ querying by recording when a record was inserted or updated/deleted in the source system  Enables record versioning via Point-in-Time Selectivity (PITS)  Records intra-day history by loading all record activity from the RSS  Provides an optimized extracting and reporting environment

6. 6 Enterprise Data Warehouse (EDW) Overview Data Warehouse (DW)  Integrates data from multiple source systems  Organizes data by business subject area  Relates data across subject areas  Facilitates effective and efficient reporting solutions for MP support

7. EDW Project: 2004 Deliverables EDW Application Foundation EMMS RSSL* RSS LoadGeneration Settlement & Billing ESIIDRID LODESTAR Ancillary Service EMMS Balancing Energy GenerationOutageCongestion Resource Plan Solution Energy Schedule L* Batch Extracts EMMS Reports Business Intelligence Foundation LODESTAR ODS Siebel ODS SEIBEL ODS EAI ODS EMMS ODS SEIBEL ODS Data Delivery Module 1 2 3 5 4 6 8 7 Ray Chase EDW Delivery Manager 01: EMMS RSS (Q3) Lead: R Chase 03: EDW Application Foundation (Q3) Lead: R Chase 05: BI Foundation (Q4) Lead: C Ryan 02: Data Delivery Module (Q2) Lead: J Messer 04: LodeStar ODS Transition (Q3) Lead: A Sooley PR-40042: Enterprise Data Warehouse PMO and IT PM Director: R Connell PM: A Esenkova 06: LodeStar Extracts (Q4) Lead: J Messer 07: EMMS ODS (Q4) Lead: A Sooley 08: EMMS Reports (Q4) Lead: P Ohlendorf

8. 8 Extract Transition: Data Archive to EDW Approach  Solid collaboration with business users on requirements gathering  Input from market participants to confirm requirements and recommendations for technical implementation  Formation of IT and business team for validation  Simulation of MP loading process to inform technical guidelines  Thorough documentation for MP processing and client services support

9. 9 Extract Transition: Data Archive to EDW Methodology  Logic auditing automated  Posting process auditing with meta data capture (i.e., what records went out to which MPs in a specific extract)  Full recovery built into the logic and processing – enabled through EDW architecture  Designed with reusable foundation for extracting and reporting

10. 10 Thank You

11. 11 Program Area Teams (PAT) Overview

12. 12 Program Area Teams Overview  Program Area Teams (PATs)  The overall goal of the PAT internal organization is to support needs from the ERCOT Market and ERCOT internally related to areas of operation within ERCOT systems.  Specific objectives:  Reduce the number of changes/release to ERCOT systems  Provide a means to affectively managing the change requests received from the market and internal ERCOT  Support Operational Area goals  Support Project Management goals  Support IT goals  Support Program Management goals

13. Sponsor Program Lead Vendor Lead Business LeadRelease Lead IT Lead Program Area Teams “PAT” Composition ITBusiness STRATEGIC TEAM BUS PMO IT Strategic focus 3m-3yr outlook CONTINUOUS ANALYSIS & REQUIREMENTS TEAM BUS Lead PMO IT Lead Market Rules, Vendor, Arch Lead RELEASE TEAM BUS PM - PMO IT Project and Release Focus ERCOT Strategic Review Team Representatives from PATs

14. 14 Program Area Teams Strategic Review Team (All Strategic Team Members) Strategic Team Continuous Analysis and Requirement Team Release Team Systems Operations IT Operations Corporate Operations Market Operations Strategic Team Continuous Analysis and Requirement Team Release Team Strategic Team Continuous Analysis and Requirement Team Release Team Strategic Team Continuous Analysis and Requirement Team Release Team

15. PAT Responsibilities Strategic Review Team Strategic Team BUS PMO IT Continuous Analysis & Requirements Team BUS PMO IT Release Team BUS PMO IT ResponsibilitiesCommunications Prioritize program issues/impacts/projects Develop program goals Monitor program performance Prog Review Market Subcom Cont Req Team Manage project requests Coordinate requirements Detailed impacts Monitor protocol updates Recommend priorities Strategic Team Release Core Coordinate project teams Assess CRs for release projects Cont Req Team Front-line Mgrs Monitor requests: PUC, Market, Internal, PRRs Prioritize cross-functional issues / projects Coordinate X-functional efforts, schedules, $’s Board Officers Program Area

16. PAT Deliverables & Meetings DeliverablesMeetings Yearly goals & performance metrics Manage 3-year Program Plan Roadmap / Release schedule Program Review ( Attend Board, Subcommittees, Program Review ) Program Updates Project Requests Impact Analysis (cost-benefit-resource) Requirements Specification High-level Design Project Charter Tollgate Project Placement, Scheduling and Update Meeting in Conjunction with Tollgate Meeting Release Updates Cash Flow Closure Signoff Release/Project Kickoff Project Team mtgs Peer Review Lessons Learned Program area recommendations Program Updates / Major Committees Programs, Rules and Allocation Program Review (monthly as part of Executive Meeting) Strategic Review Team Strategic Team BUS PMO IT Continuous Analysis & Requirements Team BUS PMO IT Release Team BUS PMO IT Program Area

17. 17 Program Area Teams and Focus Areas Market Operations Data Agg Load Profiling Metering Statements/Billing Registration ESI ID MIMO / TX SET WMS (new CMS or SBS) RMS Systems Operations POS MOS MMS WMS ROS IT Operations Data Warehouse Web Systems Trans Systems Hardware Network / SAN PRS TAC Corporate Operations Legal Finance HR Facilities Planning Strategy PRS TAC BOD Apps Areas Subcommittees & Communications

18. 18 Thank You