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

Spreadsheet bibliography

Title Multi-paradigm spreadsheet for end users
Authors Jong-Myung Choi & Young-Chul Kim
Year 2006
Type Article
Publication International Journal of Computer Science and Network Security
Series Volume 6, Number 4, April, pages 30-35
Abstract

Spreadsheets are widely used in various areas by end users because they are easy to use. However, due to the lack of the methodology for analysis and design for spreadsheet applications, users suffer with problems such as high error rates, low reusability, and maintenance difficulties.

To mitigate these problems, we introduce a multi-paradigm spreadsheet that allows end users to analyze their problems and design for the solutions. Our multi-paradigm spreadsheet supports object-oriented programming, flowchart, XML, and spreadsheet. While writing the XML document, they analyze the problems by grouping similar things into one concept, and the concept develops into a class in object-oriented programming. The flowchart and spreadsheet are used for describing operations or methods of the class.

Our multi-paradigm spreadsheet is so simple that even end users can analyze and design for their applications.

Full version Available
Sample
Multi-paradigm spreadsheet system
Multi-paradigm spreadsheet system

This figure shows the appearance of the multi-paradigm spreadsheet.

When end users key in data into the cell, a new instance is created at first, and the value of the member field is assigned by calling the setter method. While keying in data, the calculation is performed automatically.

The viewing of the member fields on the spreadsheet is done by the calling getter methods.

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