a disaster waiting to happen
1
ERRORS ERRORS ERRORS A DISASTER WAITING TO HAPPEN : Out of 25 operational spreadsheets studied by S.G. Powell, Sources 1. KPMG Management Consulting, "Supporting the Decision Maker: A Guide to the Value of Business Modeling" 2. Journal of Accountancy, "How to Make Spreadsheets Error-Proof" 3. Olson, Judith Reitman and Nilsen, Erik. “Analysis of the Cognition Involved in Spreadsheet Interaction. ”Human-Computer Interaction, Volume 3 Issue 4, December, 1987 1 2 A B C D E Why Risk Your Most Important Calculations to Spreadsheets? 4 A D C B ERRORS Spreadsheet developers miss more than 80 % of their own errors, 3 A C B A study by Olson & Nilsen found a 21 % cell error rate (the ratio of cells with errors to all cells) among experienced spreadsheet users 3 KPMG OLSON & NILSEN ERROR 2 A C B Similarly, Price Waterhouse Coopers found 90 % of all spreadsheets comprised of more than 150 rows contained errors 2 KPMG OLSON & NILSEN PRICE WATERHOUSE COOPERS ERROR KPMG PRICE WATERHOUSE COOPERS PRICE WATERHOUSE COOPERS OLSON & NILSEN 1 A C B A study taken by KPMG found 91 % of 22 spreadsheets taken from an industry sample contained errors 1 ERROR 34 % of application errors. 3 4 A C B ERRORS Engineers who use a spreadsheet-based approach spend 15-25 % 5 A C B ERROR of their time just manipulating data 6 A C B ERROR 4 A B C D 50 % of design logic errors and ERRORS and outside testers miss over But don’t expect that being careful will prevent all errors! And this costs the company money! 10 had an error impact ranging from $216,806 to $110,543,305 2 2013, PTC Inc. (PTC). All Rights Reserved. Information described herein is furnished for informational use only, is subject to change without notice, and should not be construed as a guarantee, commitment, condition or offer by PTC. All other product or company names are property of their respective owners. The timing of any product release, including any features or functionality, is subject to change at PTC’s discretion. PTC Mathcad J1400 - 7/2/12 - Infographic ???!!! ???!!! To learn more about the solutions that can help you work more efficiently with engineering calculations, visit PTC.com/product/mathcad
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Transcript of a disaster waiting to happen
ERRORS
ERRORS
ERRORS
A DISASTER WAITING TO HAPPEN:
Out of 25 operational spreadsheets studied by S.G. Powell,
Sources1. KPMG Management Consulting, "Supporting the Decision Maker: A Guide to the Value of Business Modeling"2. Journal of Accountancy, "How to Make Spreadsheets Error-Proof"3. Olson, Judith Reitman and Nilsen, Erik. “Analysis of the Cognition Involved in Spreadsheet Interaction. ”Human-Computer Interaction, Volume 3 Issue 4, December, 1987
1
2
A B C D E
Why Risk Your Most Important Calculations to Spreadsheets?
4
A DCB
ERRORS
Spreadsheet developers miss more than 80% of their own
errors,
3
A CB
A study by Olson & Nilsen found a 21% cell error rate (the ratio
of cells with errors to all cells) among experienced spreadsheet users3
KPMG OLSON & NILSEN
ERROR
2
A CB
Similarly, Price Waterhouse Coopers found 90% of all spreadsheets comprised
of more than 150 rows contained errors2
KPMG OLSON & NILSENPRICE WATERHOUSE COOPERS
ERROR
KPMG PRICE WATERHOUSE COOPERS
PRICE WATERHOUSE COOPERS
OLSON & NILSEN
1
A CB
A study takenby KPMG found 91% of 22 spreadsheets
taken from an industry sample contained errors1
ERROR
34% of applicationerrors.3
4
A CB
ERRORS
Engineers who use a spreadsheet-based approach spend 15-25%5
A CB
ERROR
of their time just manipulating data
6
A CB
ERROR
4
A B C D
50% of design logic errors andERRORS
and outside testers miss over
But don’t expect that beingcareful will prevent all errors!
And this costs the company money!
10 had an error impact ranging from
$216,806 to $110,543,305 2
2013, PTC Inc. (PTC). All Rights Reserved. Information described herein is furnished for informational use only, is subject to change without notice, and should not be construed as a guarantee, commitment, condition or offer by PTC. All other product or company names are property of their respective owners. The timing of any product release, including any features or functionality, is subject to change at PTC’s discretion.
PTC Mathcad J1400 - 7/2/12 - Infographic
???!!!
???!!!
To learn more about the solutions that can help you work more efficiently with engineering calculations, visit PTC.com/product/mathcad
