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!

10-Mar-04 2Making Better Standards

…was The Word

In the beginning . . .

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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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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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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 It is out of date now!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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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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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?!!

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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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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Market Expectations

What is “The Market” in standardization terms?

Market factors affecting the success of a standard

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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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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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Non-behavioural Standards

Physical characteristics

Tolerances

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Protocol Standards

Protocol engineering within a standards environment:

Layered modelling

Other modelling and visualization methods

3 stage design approach

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Using Specification Languages

SDL Including Descriptive SDL

MSC

ASN.1

UML

TTCN(-3)

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Test Specifications

Conformance Testing

Interoperability Testing

Comparison of Interoperability and Conformance Testing

Development Cycle

Certification

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Validating Standards

Validation methods

Walk-Through (Design Review)

Formal validation methods

SDL model simulation

SDL model exploration

Prototyping & Early Implementation

Test Development

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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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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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

10-Mar-04 21Making Better Standards

After All That, Where Is It??

http://portal.etsi.org/mbs/home.asp