This trial-and-error process, with the accompanying feedback, is absent when people give money to a distant charity.

In practice, though, figuring out where to place the readers and the tags to get data reliably has proved to be an expensive trial-and-error process.

But as he goes through this trial-and-error process, Cone is vulnerable.

This report replaced the existing trial-and-error process with a strong scientific approach.

The trial-and-error process so integral to Sanaa operates better on small commissions.

The trial-and-error process of taking countless shots is possible without the expense of developing film.

Obviously, finding the best combination of quality, service and price is a trial-and-error process.

As a relatively new technique, for most, the stutter edit is a trial-and-error process.

He began the laborious trial-and-error process of determining how she wanted to move.

Fribbs, however, had been trying chance combinations, laboring long with a trial-and-error process.