1. A method for planning the use of resources in order to satisfy demand as defined by a group of one or more orders, comprising the steps of: creating one or more SKU attributes groups, wherein said SKU attribute groups are associated with one or more orders by said attributes; prioritizing said orders based on one or more of said SKU attribute groups; selecting a slice of said orders based on said priority of said orders to be loaded into a window; loading into said window one or more configurations associated with one of said orders loaded into said window; selecting an order from said window; and planning use of resources for fulfilling said selected order from said window using one or more of said configurations.