1. A step-wise path to e61850 with UML IEC TC 57 WG10
Laurent Guise (France) - leading
Thierry Coste (France), Henry Dawidczak (Germany),
Thierry Dufaure (Germany),
Herb Falk (US)
Tanja Kostic (Swiss), Hubert Kirrmann (Swiss),
Wolfgang Wimmer (Swiss)
Eric Lambert (France) Hervé Sabot (France), Jean-Luc Sanson (France),
Karlheinz Schwarz (Germany)

2. Main objectives and expected benefits
A single location for all IEC modeling, and associated documentation
100% of the documentation is in the model (including diagrams, pictures, ..)
Improve the quality and maintainability of the standard (only the UML model needs to be maintained)
Automatic checking of models consistency
Avoid manual translation and possible error sources
Multiple publication outputs – 100% consistent
Automatic production of namespaces “standard” word documents
Automatic generation of the HTML code to browse the model
From the model, we can derive many profiles
automatically generate the SCL schemas
Future extensions will be introduced :
ACSI modeling (with diagrams)
SCL support
From the model, we can strengthen harmonization with CIM, (as active contributor to the TC57 initiative)
We can improve the standard spreading to better serve Smart Grid
CIM Users group – Prague – 11th May 2011

3. CIM Users group – Prague – 11th May 2011
TF Short term objectives (agreed at Moscow IEC TC 57 WG10 meeting – Oct 2010)
Main deliverables
Produce a UML model of the IEC standard
Sharing the same tools than CIM environment (EA, model manager tool, ..)
Sharing the same philosophy (Namespace management)
Feeding web-access task with namespace description
Propose & Prepare(*) the ad’hoc processes to manage its content
The model will get provisions in order to, in next stages:
Support the modeling of ACSI dynamic behavior modeling
Support the harmonization with the CIM model (IEC ) as defined in IEC 62357
Support the SCL language format (XSD “serialization”)
Support conformance tests definition
Support interoperability and functional tests definition
(*) -> decision for implementing relies on TC57 decision
CIM Users group – Prague – 11th May 2011

4. The main steps of the UML 61850 TF are :
Target the soonest the switch of the “master reference for edition” to the UML model
Validate the model content based on 7-4, 7-3, 7-2 contents
Validate and Set-up the requested processes to manage the model, including versioning rules
Proceed to switching
Target the soonest the production of the content to be used for the publication through the Web
Produce a serialised UML model (of the master reference) to feed the IEC web site
Procedures and process, by IEC, need to be in place before anything can be published on the web.
Target the extension of the model content to embrace other facets
Integrate ACSI and 7-410, 7-420, data model
Set-up a path to SCL XML-based description (and pave the road for CIM harmonisation)
CIM Users group – Prague – 11th May 2011

5. What can be derived from UML (parallel view CIM-61850) 1/2
In case of CIM, each profile is a relatively small subset from UML
CIM UML (.eap)
Profile
(.xmi)
Profile
Profile
Profile
jCleanCim
UML validation
UML statistics
UML doc gen
Profiling tool
definition
schema generation
profile doc gen
Product1 /
XMLEditor
Product2 /
XMLEditor2
Profile
Instance (.xml)
IEC (.doc/.pdf/.html/.xml)
IEC (.rdf/.owl/.ddl/...) configuration
Validation tool
UML validation and statistics (.log)
IEC (.xsd/.ddl/...) configuration & on-line
IEC ,-4,...,-9,-13 (.html)
CIM Users group – Prague – 11th May 2011

6. What can be derived from UML (parallel view CIM-61850) 2/2
In case of 61850, each section of SCL schema defines a profile, the union should be in UML
61850 UML (.eap)
Profile
(.xmi)
jCleanCim
UML validation
UML statistics
UML doc gen
Profiling tool
definition
schema generation
profile doc gen
Product1 /
XMLEditor
Product2 /
XMLEditor2
Profile
Instance (.icd,.scd,.???)
Validation tool
IEC ,7-3,... (.doc/.pdf/.html)
IEC (SCL.xsd - configuration)
UML validation and statistics (.log)
IEC ? (.??? – on-line exchange, e.g. Web service)
NS schema (NS.xsd)
SCL instance file validation
Web or paper publication of 7-4, 7-3, 7-2, ...
NS instance (IEC nsd)
CIM Users group – Prague – 11th May 2011

7. What can be derived from UML (parallel view CIM-61850) 2/2
In case of 61850, each section of SCL schema defines a profile, the union should be in UML
61850 UML (.eap)
(.xmi)
jCleanCim
UML validation
UML statistics
UML doc gen
Profiling tool
definition
schema generation
profile doc gen
Product1 /
XMLEditor
Product2 /
XMLEditor2
Profile
Instance (.icd,.scd,.???)
Validation tool
IEC ,7-3,... (.doc/.pdf/.html)
Step 1
IEC (SCL.xsd - configuration)
UML validation and statistics (.log)
IEC ? (.??? – on-line exchange, e.g. Web service)
Step 2
Step 1b
Feed SCL with
IEC data model from UML
Paper
publication
Web
publication, ...
CIM Users group – Prague – 11th May 2011

8. CIM Users group – Prague – 11th May 2011
Roadmap for e61850 with UML
Today
Pre-analysis
Validate the model extractions (Word)
Ready to switch of master reference
Prepare switch of master ref
Web-access
Make UML model to include part 7-2 (ACSI) and other standards such as 7-410, 7-420, ,
Define links with SCL and CIM
TC57 (CAG)
Choose a way to build
a common model management
A project
Set at IEC level
TC 57 WG10
TC57 WG17, WG18, WG19
TC88
CIM Users group – Prague – 11th May 2011 8

9. CIM Users group – Prague – 11th May 2011
Where we are ?
TC57 WG10 Task force meet on a weekly basis
A huge work was achieved, and IEC part 7-4 data model (LN and objects) is almost “transfered” to UML
Total of 391 issues: 340 closed, 27 ready to close, 24 open. (87/ 7/ 6%)
In many cases, the UML modelling faced fuzzy specification of the IEC standard and then provided clearer and cleaner definitions
With no doubt the overall IEC data model has already gained higher level of quality thanks to this comprehensive modelling assessment.
Next: Part 7-3 – CDCs – data types
Much smaller, UML better aligned with original Ed. 2, will take less time
Next: Part 7-2 – basic data types and ACSI interface  tricker
Some modelling choices still to be made
Provide a path to SCL -> still a lot of difficult points to fix.
CIM Users group – Prague – 11th May 2011

10. CIM Users group – Prague – 11th May 2011
Conclusion
The building-up a UML model of IEC is a huge achievement :
To improve IEC quality
To ensure the needed consistency, requested by today’s and future evolutions
To confirm IEC as one of the pillars of Smart Grids and will by sure help the management of seamless “translations” with CIM semantic domain
It is requesting huge investment of modelling experts and the IEC editors, but return is already high
It also enables IEC to better address systemic approach requested by Smart Grids
CIM Users group – Prague – 11th May 2011