Abstract: Conventional resource management systems often merely assign resource data to accounts determined on a yearly basis, which does not provide an efficient means of planning for changes at a more granular level, or for making adjustments if an allocation needs to be modified during a budget period. An embodiment of the invention provides a method for managing modifications to an allocation. Modifications to an allocation may be represented as deltas, and the deltas may be evaluated against a set of rules to determine a precedence for selectively applying the deltas. The deltas may be selectively applied to the allocation according to the precedence to generate an allocation instance, and the allocation instance may be adapted into a location of a user interface.