1. IASC Foundation XBRL Team Technical Issues Madrid, 5-6 October 2006

2. 2 Madrid: XBRL & IFRS Issues List of issues Taxonomy management & development Versioning What kind of versioning solution should IFRS-GP provide? What’s the scope of versioning?versioning solution Taxonomy modularisation What should be the scope of modularisation? How “deep” to modularise?modularisation Taxonomy architecture How to create consistent IFRS-GP & IFRS-SME schema architecture? Is atomisation a good solution?consistent IFRS-GP & IFRS-SME schema architecture Translation issues How to foster the adoption of IFRS-GP? How to provide multilingual taxonomy? Lack of language attribute on extended links.multilingual taxonomy Taxonomy Element Search Demo Accounting issues Restated labelRestated label, Debit / CreditDebit / Credit Technical XBRL issues discovery of IFRS-GP linkbases in extensions discovery of IFRS-GP linkbases in extensions – How to allow (force) software to discover “old” IFRS-GP linkbases in extensions (AU case)? References Reuse Use attribute

3. 3 Madrid: XBRL & IFRS Issues List of issues (cont’d) Extensibility issues IFRS-GP Taxonomy relation to other international taxonomies Convergence Taxonomy Extension Framework How to provide a comprehensive and consistent framework for extensions? Should the IASCF team provide one?framework for extensions Tuple extension Tuple content model extension Instance collection Rounding issues How to avoid rounding errors / issues in IFRS-GP and extension instances?rounding errors / issues XBRL PL CL Issues Structualisation & cross-context calculation Context Mapping Tools issue and demo

4. 4 Madrid: XBRL & IFRS Issues Versioning Issues: Introduction How to capture differences Detail of data collection Equality of concepts Modularisation Default values Complex XML elements content Dependencies of changes Arcs and locators of linkbases Structure of a diffing linkbase Visualisation of a diffing linkbase

5. 5 Madrid: XBRL & IFRS Issues Versioning Issues: Solution INDEX

6. 6 Madrid: XBRL & IFRS Issues Taxonomy Modularisation: Issues Taxonomy should be modularised to allow easier extensibilty Question: what should be the level / base of modularisation? Structures? (e.g. Assets, Liabilities) IASs / IFRSs? (IAS 1, IAS 14) Concepts? Financial report modules? (e.g. Balance sheet, Income statement)

7. 7 Madrid: XBRL & IFRS Issues Taxonomy Modularisation: Current Solution INDEX

8. 8 Madrid: XBRL & IFRS Issues Taxonomy Modularisation: Solution INDEX

9. 9 Madrid: XBRL & IFRS Issues Taxonomy Architecture: Issue Atomisation

10. 10 Madrid: XBRL & IFRS Issues Taxonomy Architecture: Solution This issue is currently under discussion Various solutions are investigated in XBRL Lab INDEX

11. 11 Madrid: XBRL & IFRS Issues Translation Issues: Aim Provide a small sample of some of the issues faced when translating taxonomy labels

12. 12 Madrid: XBRL & IFRS Issues Issue #1: Label linkbase files Single Combined File Separate Files

13. 13 Madrid: XBRL & IFRS Issues IFRS-GP taxonomy uses standard labels – which aren’t really standard Restated labels; and Opening/closing balances only Issue #2: Types of Labels

14. 14 Madrid: XBRL & IFRS Issues RoleLabel for item NetResultForeignCurrencyTranslations (period type = duration) standard labelCurrency Translations, Net terse labelF/X Net verbose labelForeign Currency Translations, Net Result positive labelCurrency Translations Gain positive terse labelF/X Gain positive verbose labelForeign Currency Translations, Net Gain negative labelCurrency translations, Loss negative terse labelF/X Loss negative verbose labelForeign Currency Translations, Net Loss zero label zero terse label zero verbose label total labelTotal Currency Translations, Net Similes ??? Label for item FinishedGoodsInventory (period type = instant) period start labelFinished Goods Inventory, Beginning of Period period end labelFinished Goods Inventory, End of Period

15. 15 Madrid: XBRL & IFRS Issues Issue #3: Case All nouns, verbs and adjectives appear with an initial capital; But, conjunctions and prepositions do not Names are formed by Label CamelCase Concatenation (LC3).

16. 16 Madrid: XBRL & IFRS Issues Issue #4: Sentence Structure Unique sentence structure Accommodates searching on concept labels

17. 17 Madrid: XBRL & IFRS Issues Issue #5: Minimum Context Using the other linkbases for information, in particular the presentation linkbase

18. 18 Madrid: XBRL & IFRS Issues Issue #6: IFRS-GP Number of Elements 4000+ Repetition Artificial terms Compound terms Terminology list/force translation

19. 19 Madrid: XBRL & IFRS Issues Issue #7: Tools Maturity Creation a separate Italian IFRS-GP label linkbase. 1.To make the import of ifrs-Italian labels into the ifrs taxonomy creating a separate label linkbase, I have opened the ifrs-gp-2004-09-15 taxonomy without loading the label linkbase with English labels; 2.Then I made an import of the excel worksheet with Italian labels. The “Import type” I have chosen was “Labels” and in the “Key Field” I selected “Name”, in addition in correspondence of the row “Italian Label” of “Import field” view pane I have selected “Label” for the “Taxonomy field”. (I did not know which was the correct import type, but making an export from the file with English labels linkbase I tried to build an excel file with Italian labels) 3.I have saved the Taxonomy (ifrs-gp-2004-09-15.xsd) with the new imported excel file so that a new label linkbase has been created (ifrs-gp-2004-09-15-label.xml). But the file ifrs-gp-2004-09-label.xml is the label linkbase with the Italian labels; 4.Then I have changed the name of the file in ifrs-gp-2004-09-15-label-italian.xml; 5.I have opened with “Notepad” the schema file ifrs-gp-2004-09-15.xsd and I have changed also in the schema the name of the label linkbase file into ifrs-gp-2004-09- 15-label-italian.xml; 6. http://www.xbrl.org/2003/role/labelLinkbaseRef 7.I have saved the Taxonomy and copied into the folder the label linkbase file ifrs-gp-2004-09-15-label.xml, but the original file with the English labels; 8.Then I have opened again in “Notepad” the schema ifrs-gp-2004-09-15.xsd, I have added manually the code for the label linkbase ifrs-gp-2004-09-15-label-xml; 9. 10.Finally I have saved the Taxonomy with Italian and English labels in two separate link bases. Unicode Issue

20. 20 Madrid: XBRL & IFRS Issues Issue #8: Completing the Translation Can’t translate extended links which group elements

21. 21 Madrid: XBRL & IFRS Issues Issue #9: Cooperation on Translation Required IFRS-GP – English, German, French, Japanese, Portuguese, Polish, Spanish, Dutch, Hungarian & Italian CRAS FLIPA – Italian, Spanish, Japanese & English US GAAP – Japanese & English German GAAP – German & English Dutch GAAP – Dutch & English Belgium GAAP – French, Dutch & English

22. 22 Madrid: XBRL & IFRS Issues

23. 23 Madrid: XBRL & IFRS Issues Review: (GermanAP Version 1.0) INDEX

24. 24 Madrid: XBRL & IFRS Issues Taxonomy Search

25. 25 Madrid: XBRL & IFRS Issues Restated Issue Restated values are often reported in financial statements (especially movements in equity) How should restatement be defined? As an element in the taxonomy? As a separate context? Is the restatedLabel role required?

26. 26 Madrid: XBRL & IFRS Issues Restated Issue: Solution Further issues: cross-context calculation not allowed Issue under discussion – XBRL Germany: Thomas Klement INDEX

27. 27 Madrid: XBRL & IFRS Issues Debit / Credit Issue XBRL rules allow only certain combinations of debit / credit values for balance attribute that are valid according to calculation linkbase validation Various approaches are however possible to model calculation linkbase (weights) SummationItem Target Summation Item Source

28. 28 Madrid: XBRL & IFRS Issues Debit / Credit Contra Entries A particular set of rules was applied in the IFRS-GP Taxonomy according to most common accounting rules 3 – level algorithm was applied to define balance attributes consistently with calculation linkbase Contra entries Example: COGS INDEX

29. 29 Madrid: XBRL & IFRS Issues Discovery of IFRS-GP Linkbases How to force discovery of “old” IFRS-GP linkbases in IFRS- GP extensions?

30. 30 Madrid: XBRL & IFRS Issues Discovery of IFRS-GP Linkbases: Solutions INDEX

31. 31 Madrid: XBRL & IFRS Issues References Reuse - Issue On AssetsDisclosures On HedgingAssetsNonCurr ent Pointing to IAS 1 68 d Pointing to IAS 1 68 c From AssetsDisclosure s to its reference resources IAS 1 68 d From HedgingAssetsNon Current to its reference resource Pointing to IAS 1 68 d IAS 1 68 c IFRS GP Elements locatorsArcs between element locators and resources Resource for referencesIAS/ IFRS Bound Volume

32. 32 Madrid: XBRL & IFRS Issues References Reuse - Solution INDEX On AssetsDisclosures On HedgingAssetsNonCur rent Pointing to IAS 1 68 d Pointing to IAS 1 68 c From AssetsDisclosure s to its reference resource IAS 1 68 d From HedgingAssetsNon Current to its reference resource IAS 1 68 c From AssetsDisclosure s to its reference resource Elements locatorsArcs between element locators and resources Resource for referencesIAS/ IFRS Bound Volume

33. 33 Madrid: XBRL & IFRS Issues Use Attribute: Issue Inconsistency in the “use” attribute (FRTA vs Spec schema)

34. 34 Madrid: XBRL & IFRS Issues Use Attribute: Solution a possible solution to this issue might be to set a default value for use, according to 3.2.2 XML Representation of Attribute Declaration Schema Components INDEX

35. 35 Madrid: XBRL & IFRS Issues Convergence How to converge IFRS-GP & US GAAP taxonomies?

36. 36 Madrid: XBRL & IFRS Issues

37. 37 Madrid: XBRL & IFRS Issues Convergence: Solution INDEX

38. 38 Madrid: XBRL & IFRS Issues Taxonomy Extension Framework: Issue How to provide consistent Taxonomy Extension Framework? Extensions repository Supporting software Guidance …

39. 39 Madrid: XBRL & IFRS Issues Taxonomy Extension Framework: Issue INDEX

40. 40 Madrid: XBRL & IFRS Issues Tuple Content Model Issue It is impossible to extend tuple content model

41. 41 Madrid: XBRL & IFRS Issues Tuple Content Model: Solution Recreation of tuples (and renaming) is required INDEX

42. 42 Madrid: XBRL & IFRS Issues Rounding Issues XBRL Spec’s issues with rounding (decimals, precision) Mapping issues while using external software (MS Excel)

43. 43 Madrid: XBRL & IFRS Issues Rounding Issues: Solution Excel option: “Precision as displayed” (Tools -> Options -> Calculations) XBRL attributes: decimals=“INF” (FRTA rule), precision not used ??? Values need to be input as originally stated (rounding / truncating not recommended)

44. 44 Madrid: XBRL & IFRS Issues Presentation & Calculation Issues Presentation linkbase Does not work as a “presentation” linkbase – rather works as “structuralisation” linkbase Calculation linkbase Does not allow cross-context calculations Does not allow calculations other than adding, subtracting INDEX

45. 45 Madrid: XBRL & IFRS Issues Demo Solution of Context Mapping