A system for virtual restructuring of a diversified company, or of a joint business enterprise, allows a plurality of disparate, autonomous business units within the diversified or joint entity that each may have its own business methods and information systems to nevertheless collectively reach, and market to, customers as if they were an integrated business entity. The system provides a common portal and single user interface that, in an illustrated embodiment, are supported by a presentation layer, a legacy applications layer that communicates with the information systems of the disparate business units, and an applications layer that intermediates between the presentation and legacy application layers.
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