Download - Creating a Common Information Foundation
© 2005 San Diego Gas and Electric Company and Southern California Gas Company. All copyright and trademark rights reserved
Semantic Modeling at Sempra Utilities:
Creating a Common Information Foundation
EPRI CIM Workshop - September 8, 2010
David Gillespie – IT Program Manager
California
Southern CaliforniaGas Company
San Diego Gas & Electric
Sempra Energy Utilities
Southern California Gas Company - 6,600 Employees• 5.6 million natural gas meters• 23,000 square miles, from San Luis Obispo to the Mexican border and 535
cities.• USA’s largest natural gas distribution utility• Serving over 20 million consumers in 20,000 square mile service territory
San Diego Gas & Electric - 4,500 Employees
• 1.4 million electric meters & 800,000 natural gas meters• 4,100 square miles, covering two counties and 25 cities.• Serving 3.4 million consumers in San Diego region
Combined Utilities • Regulated by the California Public Utilities Commission
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Key Business Efforts
SDG&E Smart Metering program• Meter installations began Q4 2008• Mass deployment nearing completion
SCG AMI program • Approval granted, will touch 5M meters
Sunrise Power link 500 kV
OpEx 20/20 Initiative• Field Force M&I and Construction work• OMS/DMS/GIS, CBM, Asset Management
SmartGrid Initiatives• Gridcomm, HAN, Regulatory planning responses, …
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Enterprise Information Management Key Business Driver
Requirement to Share Information• Creating a shared structure and terminology involves an upfront
investment.• Simplify integration, increase interoperability and most importantly
expose the information the business manages.
Past
ProvisioningBilling
Inventory
CRM1
TT
CRM2
CallCenter
DataW/house Inventory TT
ProvisioningBillingCRM1 CRM2
CallCenter
DataW/house
Provision-ingBilling
Inventory
CRM1
TT
CRM2
CallCenter
Common Data Model
Current FutureNo one can figure outWho is talking to whom?
Great! You are using SOA but,Can we reuse this investment?
We know what investments we havemade in automating the business andwe know what we can reuse to buildfuture applications cheaper.
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Semantic Modeling Information Efforts: Background
Vision:Provide a common view of enterprise dataUnderstood by business as well as technical usersEnable a common vocabulary
Realities:Challenging to understand … needs to be “summarized”
Need business involvementNeed diverse IT involvementThe results must be easily understood
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Project Goals & Objectives
Goals:Create broad communication of Information Assets (Awareness)Facilitate discussions of what is being captured for validation (i.e. in-use and planned) (Understanding)Support different “views” of Sempra Information Model. (Management)
Objectives:Deliver a consistent enterprise approach for modeling & metadataDevelop a baseline integrated EIM solutionEnable the ability to exchange data in a consistent mannerLeverage external as well as internal standards6
Enables ownership, responsibility and accountability for the improvement of data quality and information accuracy and consistency
Establishes and promotes a single version of truth for data
over time.
Reduces the number and effort of integrations over time
Enables the control of unnecessary data duplication and
proliferation
Improves data quality, consistency, availability, and
accessibility over time.
Maximizes the return on investment in SOA technologies
Why is this important?
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Influencing factors in Information Standards
Results:• Evaluate and reference relevant
industry standards or open models:– IEC TC57 CIM– NRECA MultiSpeak– OGC GML– PODS– Open ADE (automated data exchange)
• Adopt Model-Driven principles and approach for information modeling, management and services. Look for references in MDA and SOA standards.
• Adopt semantic data modeling approach for enterprise information model development.
• Adopt a SOA reference model for data and information architecture and management.
OLEProcessControl(OPC)
WG14DMS
Coordination
WG19
WG13EMS
WGs 10Substations
OpenApplication
Group
WG7ControlCenters
TC57WG9
DistributionFeeders
EPRIUCA2ProjectEPRI
CCAPIProject
W3C
CIM/61850
ebXMLObjectMgmt.Group
WG17
WG16
WG18
OASIS
UCA : User groups
MultiSpeak(NRECA)
MultiSpeak(NRECA)
CIM
Industry standards, best practices, and frameworks were reviewed to evaluate their value and applicability.
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What is our approach?
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Subject areas are defined as: A related group of data “summarized” from the detailed Sempra Information Model (SIM). Development of subject areas are needed in order to quickly understand and manage the SIM.
What does the SIM contain? Defined as data passed around the
Enterprise.
Industry Standard Utility Modeled data.
What is the value of the SIM and Subject Areas?
Use common data exchanges in SOA payloads to reduce software development costs.
Quickly assess data/information scope of projects in order to facilitate reuse
Example Subject Area
Sempra Information Model (SIM)
Consumer Application
Consumer Application
Consumer Application
ProviderApplication
ProviderApplication
RICEF_I
Requiremen
ts
EMF
Subject Area Levels
Level 0 - These are the Enterprise Subject AreasUseful Overview for Management and Business UsersStarting point to understand the contents of each Subject Area
Level 1- This next level of detail is one specific Subject Area – Work. Represents main related subject areas and Entity Groups. This level is useful for deciding if you need the semantic models in the next level to design new applications and interfaces
Level 2 - Here you can see the Semantic Model for the Subject area as well as the Metadata Entity Definitions
There may be additional levels of detail below that can be displayed, for each attribute
Metadata Entity Definitions
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Major Information Subject Areas – Level 0
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Relationships – Level 1
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Subject Area Management / Governance
Enhance and maintain the subject area models and ensure that it is easily accessible by those that need the information.
Ensure that we are treating information as a shared business
assetCollaborate with the following groups to ensure the validity and integrity of its contents:
• Data Owners and Stewards• IT Data Architects• Data Warehouse• Business Process Owners• Others?
Have We Arrived?
No, but our Vision is much clearer…Our roadmap:
Support Data Governance initiative
Acquire Metadata tool to extend subject area portal
Develop Master data management for subject areas
Assess emerging information ‘standards’ affecting Smart Grid objectives
Enterprise Information Management Models evolves incrementally and iteratively. It’s a journey, rather than a destination.
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