Abstract: A system and method enable a person to visually identify sites where construction of an object or other activity can occur. The method involves associating with each of a plurality of sites a corresponding object that is to be constructed or other activity is to occur, and a priority. Objects are formed from items defined in a catalog; The method includes visually outputting a report that includes, for one or more of the sites, an availability of the various items that are needed at the one or more sites. The availability is representative of a potential that a corresponding object can be built or other activity can occur at a given site. If the priority of a site is changed, an updated report is generated that includes an updated availability representative of a potential that a corresponding object can be built or other activity can occur at a particular site.