Simon Murphy simon.murphy@codematic Developer – Codematic Ltd
Eusprig 2007 Management Paper Spreadsheet Hell Simon Murphy [email protected] Developer –...
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Eusprig 2007 Management Paper Spreadsheet Hell Simon Murphy [email protected] Developer – Codematic Ltd With contributions from www.smurfonspreadsheets.co.uk
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Transcript of Eusprig 2007 Management Paper Spreadsheet Hell Simon Murphy [email protected] Developer –...
Eusprig 2007
Management Paper Spreadsheet Hell
Simon [email protected] – Codematic LtdWith contributions fromwww.smurfonspreadsheets.co.uk
Eusprig 2007
Question
• Who knows of an organisation that may be suffering from Spreadsheet Hell?
Eusprig 2007
Spreadsheet background• Over 1 trillion dollars ($
1,000,000,000,000)• Often linked to other technologies such
as OLAP, ADO, COM or .net etc.• Finance, Banking and Sales and
Marketing areas
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Agenda• Spreadsheet use• Micro spreadsheet hell• Macro spreadsheet hell• Summary• Formulas• Questions
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Spreadsheet useTechnology
Spreadsheets - 100%
Source:CFO (2004): http://www.cfo.com/article.cfm/3014451?f=related
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Spreadsheet use 2
Organisations with 'some' spreadsheet hell
Admit hell - 60% Deluded? - 40%
Stats source:CFO (2004): http://www.cfo.com/article.cfm/3014451?f=related, interpretation mine
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Spreadsheet Lifetimes
0 12 24 36 48 60 72 84 96 108 120
Months
Development 4
Development 3
Development 2
Development 1
Some spreadsheet development times v Lifetimes
Development Live- in use
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Spreadsheet hell types
• Micro
•Macro
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Frankensheet
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Frankensheet
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Frankensheet
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Micro Spreadsheet hell
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Micro Spreadsheet hell 2
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Demo
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Micro Spreadsheet hell 3
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Macro Spreadsheet hell
• 100% considered (mis)management the key factor (SOS)
Biggest Spreadsheet Risk
Management - 100%
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Organisational management
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Common Folder Structure
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Duplicate history
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Spreadsheet forest
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Common end user computing
Primary data sources
WorkbookWorkbook
Workbook
Workbook
Workbook
Workbook
Workbook
Primary data sources
WorkbookWorkbook
Workbook
Workbook
Workbook Workbook
Workbook
Eusprig 2007
Better end user computing
Primary source data
Reporting data
sources
Workbook
Workbook
Workbook
Reporting data
sources
Primary source data
Reporting data
sources
Workbook
Workbook
Workbook
Reporting data
sources
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Summary• Micro spreadsheet hell
– Individual spreadsheet quality– Reasonably well documented– Limited consensus on quality
• Macro spreadsheet hell– Organisational issue– Being replaced(?) by database hell– Effective infrastructure investment helps
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Formula Fun
• =SUM(#REF!)• =Cost*50%*1000• =((Area/Floors+IF(Levels>0,gArea/
Levels,0))*200%/2)^0.5*6• ='Standard Cost.xls'!DUMPSTER• =GetExtData(“Some Criteria")
+181970242+5989278
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Formula Fun
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Formula Fun
Eusprig 2007
Questions?
• Email– [email protected]
• Websites– www.codematic.net– www.xlanalyst.co.uk
• Blog– www.smurfonspreadsheets.co.uk
