How do you do very quick (and dirty) estimations for coding tasks? [closed]

Answer 1

The best way is to try a quick breakdown of all of the major sub-components, e.g.

1. Update data model script (3 items in 2 tables)
2. Change input screen (3 new inputs)
3. Check Input (3 new inputs)
4. Update Data.
5. Display results etc...
6. Build unit test

Assign a rough guess on each of these and if you can't think of one put down at least 2 hours, because even the simplest item will probably take at least an hour, but the 2x will allow for uncertainty.

At least you will have thought of all the items you will have to do so it will be in the right order of magnitude as was requested.