Bernard Vukas

Errors in the data, formulas, or manipulation of spreadsheets could be costly, even devastating.

Spreadsheets can be considered to be the world's most successful end-user programming language. Spreadsheet formulas are Turing complete.

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.

Your spreadsheets may be disasters in the making. Strive for spreadsheets that are validated, reliable, and auditable.

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

We are conscious of very few of our errors. When people are confronted with their actual error rates, they are typically shocked.

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