Modelling is used to describe the physical aspect of the business.

It might not be physically possible to transition from current state to envisioned future state.

Several intermediary stages/states might be required to take into consideration dependencies and physical limitations of moving directly to the envisioned end state.

Each of the transition stages is modelled to illustrate the configuration of the business as it traverses towards the envisioned future state.

Enterprise architecture modelling enables the business to manage the change by being crystal clear about what has to be managed.

Models can be used to communicate and motivate role players to support and implement the changes in the physical realm as described by the models.
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