1. A method in a computer system for managing a plurality of types of enterprise portfolio data as investment items, each investment item having an investment type and associated with a transition from a source investment type to a destination investment type, comprising: presenting on a presentation device associated with the computer system a representation of a one of the investment items including a representation of the associated transition; receiving an indication to perform the associated transition to transform the one of the investment items from the source investment type to the destination investment type; and transparently performing the indicated transition to transform the one of the investment items to the destination investment type such that the one of the investment items now appears as the destination type of investment item.