Tufts needs to commit to specifics with how it will use the building proposed to replace the Powder House School on Broadway.

In the second of a series of public meetings last week seeking community input on the building and how the open space near the site and the Tufts Administration Building (TAB) behind the current school on Holland will be designed and what recreational features will be included, a representative from Tufts said the university wanted to maintain flexibility with how it will use the new building.