IEC TR 61908:2004

TECHNICAL IEC
REPORT TR 61908
First edition
2004-11
The technology roadmap for industry
data dictionary structure,
utilization and implementation

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IEC/TR 61908:2004(E)
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TECHNICAL IEC
REPORT TR 61908
First edition
2004-11
The technology roadmap for industry
data dictionary structure,
utilization and implementation

 IEC 2004  Copyright - all rights reserved
No part of this publication may be reproduced or utilized in any form or by any means, electronic or
mechanical, including photocopying and microfilm, without permission in writing from the publisher.
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Telephone: +41 22 919 02 11 Telefax: +41 22 919 03 00 E-mail: inmail@iec.ch Web: www.iec.ch
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Commission Electrotechnique Internationale X

International Electrotechnical Commission
МеждународнаяЭлектротехническаяКомиссия
For price, see current catalogue

– 2 – TR 61908 © IEC:2004(E)
CONTENTS
FOREWORD.4
1 Scope.7
2 Normative references .7
3 Overview .7
3.1 Dictionaries and Libraries.7
3.2 The IEC Dictionary .8
3.3 The ECALS Dictionary.9
3.4 The RosettaNet Dictionary.9
3.5 The Global Dictionary situation analysis .9
3.6 The interoperability experiment .11
3.7 Phase I mapping results .12
3.8 Phase II Dictionary Interchange results .12
3.9 Phase III Formal harmonization results.13
4 Background .13
4.1 Evaluation techniques .13
4.2 Proposed participation.14
4.3 Proposed process flow .14
4.4 Reports .14
4.5 Timing .15
5 Introduction of the actual programme experiment .15
6 Procedure used for Section A experiment (RosettaNet to ECALS and MERCI) .15
6.1 Queries (Use case queries) both MERCI and ECALS .17
6.2 Queries (3-level queries) .18
6.3 Output files (created by ECALS).19
6.4 RosettaNet to MERCI (IEC) queries .20
6.4.1 Specific mappings .21
6.4.2 Identification of missing values .22
6.4.3 Qualification properties without mapping .22
6.4.4 Result presentation .22
6.4.5 Mapping problems .24
6.5 Evaluation of RosettaNet to ECALS exchange.24
6.5.1 TRP (transport, routing, packaging) issues .25
6.5.2 Mapping issues (RN->ECALS).25
6.5.3 Query-Response rule differences.25
6.5.4 Mapping issues (RN->ECALS).25
6.5.5 Mapping issues (ECALS – >RN) Preliminary.26
6.5.6 Mapping issues (ECALS – >RN) Preliminary.26
7 Procedure used for Section B experiment (ECALS to RosettaNet and MERCI) .27
7.1 Queries (Use case queries, both RosettaNet and MERCI) .28
7.2 Queries (3-level queries) .28
7.3 Output files (created by RosettaNet).28
7.4 ECALS to MERCI (IEC Queries) .29
7.4.1 Procedure used for Section B experiment (ECALS to MERCI) .29
7.5 Output files (created by MERCI) .30

TR 61908 © IEC:2004(E) – 3 –
7.6 Evaluation techniques (ECALS to RosettaNet) .32
7.6.1 Mapping issues (ECALS to RosettaNet).32
7.6.2 Message translation issues (ECALS to RosettaNet).32
7.6.3 Maintenance of mapping tables (ECALS to RosettaNet) .32
7.6.4 Contents are not provided enough (ECALS to RosettaNet) .33
7.6.5 Additional comments (ECALS to RosettaNet) .33
7.7 Evaluation technique (ECALS to MERCI).33
8 Procedure used for Section C experiment.33
9 Phase III evaluations .35
10 Conclusions.35
10.1 Cooperative spirit statement.35
10.2 Lessons learned.35
10.2.1 Dictionaries vs. Libraries .35
10.2.2 Discontinuity in class structures.36
10.2.3 Product complexity (viewpoints ) .36
10.2.4 Transportation mechanisms (software tools).36
10.2.5 Search engine capabilities.37
10.3 Importance of interoperability .38
11 Recommendations.38
12 Epilogue .39
Annex A (informative) Open and interoperable domain dictionaries initiative.40

Figure 1 – Data element pyramid .11
Figure 2 – Process flow for Phase II, Section A RosettaNet and ECALS .16
Figure 3 – Process flow for Phase II, Section A RosettaNet and MERCI .16
Figure 4 – ECALS response process.19
Figure 5 – MERCI response process.21
Figure 6 – Process flow for Phase II Section B ECALS to RosettaNet .27
Figure 7 – Process flow for Phase II Section B ECALS to MERCI .28
Figure 8 – RosettaNet response process .28
Figure 9 – Process flow for Phase II Section B ECALS to MERCI .30
Figure 10 – Example of a Google search engine finding a microprocessor supplier.37

Table 1 – Dictionary hierarchy and status (January 2003) .10
Table 2 – Selection of classes .15
Table 3 – Example of 3 level query .19
Table 4 – Example of detailed results of ECALS response .20
Table 5 – Selected classes populated in the MERCI database .21
Table 6 – Example of MERCI mapping table for .22
Table 8 – Mapping of properties completed by ECALS.29
Table 9 – Mapping of properties completed by MERCI (Class XJA644, Dynamic RAMs) .31
Table 10 – Section C mapping between RosettaNet and MERCI (IEC).34

– 4 – TR 61908 © IEC:2004(E)
INTERNATIONAL ELECTROTECHNICAL COMMISSION
____________
THE TECHNOLOGY ROADMAP FOR INDUSTRY DATA DICTIONARY
STRUCTURE, UTILIZATION AND IMPLEMENTATION

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