Over the past years, the concept of job analysis has been changing dramatically.

The concept of the soil did not change in this survey.

See for a review of how the concept has changed over the years.

They already do, but the concept of universal health care has clearly changed the playing field.

"The concept is 35 years old and has not changed much in that time," he said.

Thus, the concept of marriage is changing widely in many countries.

When we stop discovering new things out there, the concept of the future will change.

In recent years the concept of mission work has changed.

The concepts of good asthma care have also changed in recent years.

The concept changed in other ways as the season progressed.