SCN Blog: Comparison of SAP PI/PO and SAP AIF
The following SCN article, by SAP’s Agasthuri Doss, provides a detailed comparison of the features and functionality of SAP PI/PO and SAP AIF. The article is a good start to evaluate your end-to-end integration landscape, especially in the case you are planning to upgrade your PI environment in the near future.
SCN Blog: “Comparison on Application Interface Framework (AIF) and Process Orchestration (PO)“