In his painting the artist duccio pioneered the use of architecture to define space and direct movement.

In his painitng Christ Entering Jerusalem, the artist Duccio pioneered the use of architecture to define space and direct movement.
In art, Define space is a technique to left some part of the canvas unoccupied and direct movement is a technique that try to capture a moving subject/object into artform, and both of these techniques could be seen on the painting.