making better standards 10-mar-041 making better standards steve randall, stf217 or youve read the...
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10-Mar-04 1Making Better Standards
Making Better Standards
Steve Randall, STF217
orYou’ve read the book now see the web You’ve read the book now see the web
site!site!
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10-Mar-04 2Making Better Standards
…was The Word
In the beginning . . .
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10-Mar-04 3Making Better Standards
How did it start?
In 1994 MTS was generally viewed as ‘Academic’
Output from MTS was becoming more practical with guides rather than strict rules
Something was needed to get these guides used and to improve the MTS image
PT69V set up to promote new methodologies
The “Making Better Standards” book was the outcome
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10-Mar-04 4Making Better Standards
Why “Making BETTER Standards”?
This is not the best wording. The implication is that our standards aren’t so hot and need improving!
Alternatives could have been: Making Even Better Standards
Making Good Standards
Making The Best Standards
Making High Quality Standards
Editorially, “Making Better Standards” sounded right
Now we are stuck with it!
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10-Mar-04 5Making Better Standards
So Why Bother with an Update?
The MBS book was a remarkable success Sent to all members Demand means no spares left in ETSI now Even hardened standards writers STILL use it - and are
prepared to admit it!
BUT . . . . It is out of date now! Based on MTS Rules rather than Guidelines Reflects a much stricter regulatory regime in Europe No Interoperability Testing No TTCN-3 No Descriptive SDL No UML Nothing substantial on MSC and ASN.1
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10-Mar-04 6Making Better Standards
MBS 2
New and revised guidelines available
Different thinking on the role of MTS
New and improved specification languages available
Changed emphasis on conformance testing
Increased emphasis on interoperability testing
Testing and regulation not so closely coupled
What about publishing on a web site?
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10-Mar-04 7Making Better Standards
Why a Web Site?
More Hi-Tech than a book – the right image for ETSI
Lower cost Publication
Easier to search and navigate
Much easier to maintain
Available to a much wider audience
Distribution on CD if something “physical” needed
Simpler language is possible
And anyway, why NOT a web site?!!
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10-Mar-04 8Making Better Standards
So What’s On It?
Introduction
Market Expectations
What Makes a Standard “Better”
Planning
Non-behavioural Standards
Protocol Standards
Using Specification Languages
Test Specifications
Validating Standards
European Regulatory Regime
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10-Mar-04 9Making Better Standards
Introduction
Introduction to the MBS site How to use the MBS site
Simple guide to navigating MBS
Introduction to standardization What to standardize?
Why Standardize?
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10-Mar-04 10Making Better Standards
Market Expectations
What is “The Market” in standardization terms?
Market factors affecting the success of a standard
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10-Mar-04 11Making Better Standards
What Makes a Standard “Better”
Characteristics of a good standard
Accurate and complete technical content
Standard is easy to read
Clear and unambiguous requirements
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10-Mar-04 12Making Better Standards
Planning
Planning Validation and Testing activities
Which Validation method to choose
How much Validation to include in the plan
Estimating the effort involved
Building a plan
Some example scenarios
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10-Mar-04 13Making Better Standards
Non-behavioural Standards
Physical characteristics
Tolerances
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10-Mar-04 14Making Better Standards
Protocol Standards
Protocol engineering within a standards environment:
Layered modelling
Other modelling and visualization methods
3 stage design approach
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10-Mar-04 15Making Better Standards
Using Specification Languages
SDL Including Descriptive SDL
MSC
ASN.1
UML
TTCN(-3)
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10-Mar-04 16Making Better Standards
Test Specifications
Conformance Testing
Interoperability Testing
Comparison of Interoperability and Conformance Testing
Development Cycle
Certification
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10-Mar-04 17Making Better Standards
Validating Standards
Validation methods
Walk-Through (Design Review)
Formal validation methods
SDL model simulation
SDL model exploration
Prototyping & Early Implementation
Test Development
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10-Mar-04 18Making Better Standards
European Regulatory Regime
R & TTE Directive and its implications for Operators and Manufacturers:
Harmonized Standards
Interface Descriptions
Declarations of Conformity
Other important Directives
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10-Mar-04 19Making Better Standards
Overall Approach
Original MBS book reproduced text from a number of standards and reports
MBS 2 gives limited introductory text then links to the necessary standards and guides
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10-Mar-04 20Making Better Standards
Who Has Been Involved?
TC-MTS STF217
Jonathan West Michael Andersson Scott Moseley Steve Randall
PTCC Milan Zoric Anthony Wiles Emmanuelle Jouan
M&D Paul Reid
FAS Reynolds Dugenne Maya Ayache
TB Support Mike Sharpe
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10-Mar-04 21Making Better Standards
After All That, Where Is It??
http://portal.etsi.org/mbs/home.asp