Are SAP's REST/JSON APIs Real?
… an overall implementation work better.
This allows SAP to not compete on the actual application but to compete as part of an ecosystem.
The Outcome for SAP Customers
The paragraph above has been the long-term SAP strategy, and most SAP customers believe it, using non-SAP systems only when they find a huge hole in SAP’s offering. This has lead to deleterious effects for SAP customers as they have loaded up on weak applications ranging from the SAP BW to SAP APO. These applications continually consume large amounts of IT resources and deliver low levels of business value.