Maxwell Anderson | KERA News

Maxwell Anderson

Jerome Weeks / KERA News

Maxwell Anderson, who’s been director of the Dallas Museum of Art since 2012, is leaving to join the New Cities Foundation.

Dallas Museum of Art

The Dallas Museum of Art is teaming up with four museums -- the Art Institute of Chicago, the Los Angeles County Museum of Art, the National Gallery in Washington, D.C. and the Whitney Museum of American Art -- to take part in "the largest outdoor art show ever conceived."

But how big are we talking here?

The headlines since last week's announcement have focused on how the Dallas Museum of Art is offering free admission starting next month. But KERA's Jerome Weeks zooms in on the parts of the plan -- free membership and sophisticated geographic data mining -- that could prove to be long-term game changers for museums.