Spreadsheet development must embrace extensive testing in order to be taken seriously as a profession.
Bock (2016)
Every study that has looked for errors has found them... in considerable abundance.
Panko & Halverson (1996)
Spreadsheets are notoriously error-prone.
Cunha, et al (2011)
The quality and reliability of spreadsheets is known to be poor.
Bishop & McDaid (2007)
Developing an error-free spreadsheet has been a problem since the beginning of end-user computing.
Mireault (2015)
Spreadsheet shortcomings can significantly hamper an organization's business operation.
Reschenhofer & Matthes (2015)
The results given by spreadsheets are often just wrong.
Sajaniemi (1998)
Untested spreadsheets are riddled with errors.
Miller (2005)
Spreadsheets are more fault-prone than other software.
Kulesz & Ostberg (2013)
A significant proportion of spreadsheets have severe quality problems.
Ayalew (2007)
Your spreadsheets may be disasters in the making.
Caulkins, Morrison, & Weidemann (2006)
Programmers exhibit unwarranted confidence in the correctness of their spreadsheets.
Krishna, et al (2001)
Spreadsheets are often hard, if not impossible, to understand.
Mireault & Gresham (2015)
Spreadsheets are easy to use and very hard to check.
Chen & Chan (2000)
People tend to believe their spreadsheets are more accurate than they really are.
Caulkins, Morrison, & Weidemann (2006)
Never assume a spreadsheet is right, even your own.
Raffensperger (2001)
Spreadsheets have a notoriously high number of faults.
Rust, et al (2006)
Studies have shown that there is a high incidence of errors in spreadsheets.
Csernoch & Biro (2013)
94% of the 88 spreadsheets audited in 7 studies have contained errors.
Panko (2008)
Despite overwhelming and unanimous evidence... companies have continued to ignore spreadsheet error risks.
Panko (2014)
1% of all formulas in operational spreadsheets are in error.
Powell, Baker, & Lawson (2009)
Errors in spreadsheets are as ubiquitous as spreadsheets themselves.
Colbenz (2005)
...few incidents of spreadsheet errors are made public and these are usually not revealed by choice.
Kruck & Sheetz (2001)
It is irrational to expect large error-free spreadsheets.
Panko (2013)
Every study, without exception, has found error rates much higher than organizations would wish to tolerate.
Panko (1999)
60% of large companies feel 'Spreadsheet Hell' describes their reliance on spreadsheets.
Murphy (2007)
Spreadsheet errors are pervasive, stubborn, ubiquitous and complex.
Irons (2003)
Spreadsheets... pose a greater threat to your business than almost anything you can imagine.
Howard (2005)
Spreadsheets are dangerous to their authors and others.
Durusau & Hunting (2015)
Spreadsheet errors have resulted in huge financial losses.
Abraham & Erwig (2007)
Even obvious, elementary errors in very simple, clearly documented spreadsheets are... difficult to find.
Galletta, et al (1993)
Spreadsheet errors... a great, often unrecognised, risk to corporate decision making & financial integrity.
Chadwick (2002)
The untested spreadsheet is as dangerous and untrustworthy as an untested program.
Price (2006)
Spreadsheets contain errors at an alarmingly high rate.
Abraham, et al (2005)
Spreadsheet errors are still the rule rather than the exception.
Nixon & O'Hara (2010)
Despite being staggeringly error prone, spreadsheets are a highly flexible programming environment.
Abreu, et al (2015)
Most executives do not really check or verify the accuracy or validity of [their] spreadsheets...
Teo & Tan (1999)
Errors in spreadsheets... result in incorrect decisions being made and significant losses incurred.
Beaman, et al (2005)
Overconfidence is one of the most substantial causes of spreadsheet errors.
Sakal, et al (2015)
Spreadsheets are extraordinarily and unacceptably prone to error.
Dunn (2010)
Spreadsheets are the most popular live programming environments, but they are also notoriously fault-prone.
Hermans & van der Storm (2015)
Spreadsheets are alarmingly error-prone to write.
Paine (2001)
It is now widely accepted that errors in spreadsheets are both common and potentially dangerous.
Nixon & O'Hara (2010)
Spreadsheets are commonly used and commonly flawed.
Caulkins, Morrison, & Weidemann (2008)
Spreadsheets can be viewed as a highly flexible programming environment for end users.
Abreu, et al (2015)
The software that end users are creating... is riddled with errors.
Burnett & Myers (2014)
Most large spreadsheets have dozens or even hundreds of errors.
Panko & Ordway (2005)
Research on spreadsheet errors is substantial, compelling, and unanimous.
Panko (2015)
A lot of decisions are being made on the basis of some bad numbers.
Ross (1996)
The issue is not whether there is an error but how many errors there are and how serious they are.
Panko (2007)

Spreadsheet bibliography

Title Spreadsheet hell
Authors Simon Murphy
Year 2007
Type Proceedings
Publication EuSpRIG
Series  
Abstract

This management paper looks at the real world issues faced by practitioners managing spreadsheets through the production phase of their life cycle.

It draws on the commercial experience of several developers working with large corporations, either as employees or consultants or contractors. It provides commercial examples of some of the practicalities involved with spreadsheet use around the enterprise.

Full version Available
Sample
Spreadsheet management

Ideally a program of spreadsheet management would include:

  • Policies on when to use, and when not to use, spreadsheets.
  • Procedures for safe and effective development of valuable spreadsheets.
  • Features to use and those to avoid, with justifications.
  • Adequate training and coaching appropriate to job role.
  • Procedures and policies for managing the modification of live systems.
  • Policies for safely archiving retired spreadsheets.
  • Full consideration of all aspects of the systems life cycle.
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