Ernst Goss

"Oh My God" my formulas are not working! This article covers most of the reasons for Excel formulas not working. And how to fix them.

Research concludes unanimously that spreadsheet errors are both common and non-trivial. We must seek ways to reduce spreadsheet errors.

Once information is loaded into a spreadsheet, it acquires properties that it may not deserve – a process called reification.

The cascading structure of typical spreadsheet formulae means that just about every spreadsheet is almost certainly wrong.

Spreadsheet errors are reduced by using good design. Our students do three assignments to acquire good spreadsheet design skills.

Do you document your spreadsheets? We use the FizzBuzz word game to illustrate the importance of documenting your spreadsheets.

Only a quarter of survey participants were satisfied with their spreadsheet testing. Their techniques are largely manual and lack formalism.

Our spreadsheet methodology has criteria for designing, building, and validating spreadsheets to ensure that they work correctly.