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DEV09: Date/Time: Wednesday, December 6 from 10:00 to 10:30 am Session Leader: Bill Palmer, R W Palmer Consulting Interactive Spreadsheets Formats and.

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Presentation on theme: "DEV09: Date/Time: Wednesday, December 6 from 10:00 to 10:30 am Session Leader: Bill Palmer, R W Palmer Consulting Interactive Spreadsheets Formats and."— Presentation transcript:

1 DEV09: Date/Time: Wednesday, December 6 from 10:00 to 10:30 am Session Leader: Bill Palmer, R W Palmer Consulting Interactive Spreadsheets Formats and Working Designs 14th International XBRL Conference

2 Interactive Spreadsheets Formats and Working Designs 14th International XBRL Conference

3 Barriers and Solutions 14th International XBRL Conference

4 XBRL files difficulties using common Excel XML import schema and linkbases files Default loading of XML works using File-Open Read only - saved changes not original XML XML Data features of Excel 2003 fail for schemas XSD substitutionGroups not allowed ! instance files Default loading of XML using File-Open fails ! XBRL tags mapped as columns - max 255 ! Applies XSLT 1.0 from embedded processing instructions on load. 14th International XBRL Conference

5 Loading xml esp. XBRL instances 14th International XBRL Conference

6 ...XSLT can column-ize and clean up Transform elements with as generic element with an attribute holding element names. Element names will then all be in the new attribute column. 14th International XBRL Conference

7 Taxonomy processing ? DTS “discovery” extension logic and use=“prohibit” 14th International XBRL Conference

8 …do DTS before Excel load...do extension logic by “lookup” A simple... is sufficient for all XSLT 1.0 extension processing. A cell formula may look or a matching arc that is flagged as “prohibited” 14th International XBRL Conference

9 Spreadsheet showing tree view of linkbase is too complex 14th International XBRL Conference

10 …do not use tree...use list with links 14th International XBRL Conference

11 … xlink:to=“Revenue” weight=“ +1 ”... … xlink:to=“CostOfSales” weight=“ -1 ”... … xlink:from=“GrossProfit”... Same as linkbase … work with a set of arcs for a particular FROM summation in a particular ROLE 14th International XBRL Conference

12 Map each xlink arc to a single Excel row? Simplest summation spreadsheet concept? 14th International XBRL Conference

13 Simplest summation spreadsheet concept? role summationweightitem Arc? Map each xlink arc to a single Excel row? 14th International XBRL Conference

14 Map each xlink arc to a single Excel row? Simplest summation spreadsheet concept? role summation weight item role summationweightitem Arc? 14th International XBRL Conference

15 Map each xlink arc to a single Excel row? Simplest summation spreadsheet concept? role summation weight item 14th International XBRL Conference

16 Simplest summation spreadsheet concept? role summation weight item A larger example in Excel - including arcs for the px_CostOfSales summation. Map each xlink arc to a single Excel row? 14th International XBRL Conference

17 Simplest summation spreadsheet concept? This example is greatly simplified by ignoring other attributes such as use, order, priority, xlink:arcrole, xlink:href etc. We will mark use=“prohibited” arcs with a “P” so that extension processing formulas can be used. The amount columns will need to be blanked out for prohibited arcs and the arcs that they match. Map each xlink arc to a single Excel row? 14th International XBRL Conference

18 Simplest summation spreadsheet concept? More rows added by text formulas. Calculated Control Map each xlink arc to a single Excel row? 14th International XBRL Conference

19 Simplest summation spreadsheet concept? Map each xlink arc to a single Excel row? Note use of calculation number on prohibited extension arc. This allows unique VLOOKUP without listing long combined FROM and ROLE names. 14th International XBRL Conference “P” as first character means “prohibited”. Previous “W” arc also via “lookup”.

20 Simplest summation spreadsheet concept? Map each xlink arc to a single Excel row? Another format example spreadsheet. Note numeric column headings … “r1c1” mode allows identical standard formulas on any row. 14th International XBRL Conference

21 SINGLE “summation” concept ( assigned to a “role” and annotated with calculation “arcs” ) MANY “instance” concepts ( at top to be found first by lookups ) MANY “leaf” concepts Summation section is arcs above a calculated total, a control total, the difference. 14th International XBRL Conference

22 SINGLE “summation” concept ( assigned to a “role” and annotated with calculation “arcs” ) MANY “instance” concepts ( at top to be found first by lookups ) MANY “leaf” concepts SINGLE “summation” concept ( assigned to a “role” and annotated calculation “arcs” ) Sheet is “summation” section above “leaf” values for lookup 14th International XBRL Conference

23 SINGLE “summation” concept ( assigned to a “role” and annotated with calculation “arcs” ) MANY “instance” concepts ( at top to be found first by lookups ) MANY “leaf” concepts SINGLE “summation” concept ( assigned to a “role” and annotated calculation “arcs” ) 14th International XBRL Conference

24 SINGLE “summation” concept ( assigned to a “role” and annotated with calculation “arcs” ) MANY “leaf” concepts SINGLE “summation” concept ( assigned to a “role” and annotated calculation “arcs” ) 14th International XBRL Conference

25 SINGLE “summation” concept ( assigned to a “role” and annotated with calculation “arcs” ) MANY “leaf” concepts 14th International XBRL Conference

26 MANY “leaf” concepts 14th International XBRL Conference

27

28 Full featured example in PDF with annotations The spreadsheet is created by a non-xslt processor that collects all arcs for the entire taxonomy and is able to discern which are LEAF nodes and to document where they are used. The program writes all formulas and need not understand “row” addresses by using the “r1c1” mode. A single program step in Excel activates the formulas. 14th International XBRL Conference

29 See file xmsft _calSPREADSHEET.pdf 14th International XBRL Conference


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