Requirements :

Requirements : In previous versions of Configuration Manager it was common practice to build collections of systems matching specific criteria or filters and then to target advertisement(s) to those collections. In Configuration Manager 2012, collections remain a requirement for deployment targeting, but the need to build a new collection or multiple new collections to provide filtering for a single deployment should be reduced. Administrators now have the ability to specify deployment requirements per deployment type. These requirements ensure a specific deployment type is not executed unless specific criteria are met. Once
defined, requirement rules are reusable.