1. Spreadsheet Errors Kyle Sandburg Spring 2010 DFMW | Homework #1 | Part 1 Source: http://www.j-paine.org/eusprig2005_pres/before.gif

2. How to remove the human from the equation Humans are prone to cause errors and thus the process for developing spreadsheets should remove this error prone element

3. Almost all spreadsheets have errors The larger the spreadsheet the more likely to find errors Source: Strategy at Risk website

4. The most common errors Hard coded cells Reference the wrong cell Incorrect Logic Lack of data or calculation Too complex Not enough assumptions / sources

5. Design your spreadsheet to be used Too many spreadsheets can never be used again or are too difficult to use – think first Source: bokardo.com/archives/comic-content-or-design/