Co-existence approach implies that a customer is not upgrading but they will keep adding Fusion Application solutions (see diagram about Fusion Topology). In that case customers will always look for opportunities that Fusion brings that address their critical needs while minimizing the risk to their current Applications investment. This is the focus of the co-existence adoption model.

A question that has been coming often lately is about integrating multiple non Oracle financial systems to fusion accounting hub. Below is a visual architecture example How to implement Fusion Accounting Hub by utilizing your current as is systems - multiple sources with different formats and loading it with SQL Loader. into FAH. The main advantage of this approach is that you can continue using your E-Business Suite or PeopleSoft applications for your procurement, supply chain, payables, receivables without disruptions.

Below is an example of an integration with multiple inputs: