Other big questions should revolve around potential use patterns for the home, and how realistic they may be.

The test markets are expected to show actual use patterns as they develop.

Switching costs occur due to the inconvenience and risks caused by possible changes in use patterns.

The Government said the maximum risk of someone getting cancer under the current widespread use pattern during a 70-year lifetime was 4 in 10,000.

"There is widespread agreement that we lack reliable data on antibiotic use patterns."

In many parts of the world land use patterns mean that building two or more highways in parallel isn't practicable.

Another approach is a new generation of more intelligent batteries that can modify their behavior to adapt to the computer user's use pattern.

If current use patterns remain unchanged, California faces a water shortage of four to six million acre-feet a year for the next 20 years.

Some users show a compulsive use pattern and they are frequently part of a network where drug use is very common.

You get caught in the complex use pattern of legal and illegal drugs," says Clark.