The SAP Open Information Warehouse (OIW) unifies the various information systems within the R/3 System into a single system. It pools various disparate information systems into a single, easy-to-use “information warehouse.” You can use the OIW to gain an overview of information units across the R/3 System. With the OIW you can overcome the boundaries that tend to exist among different information systems by easily combining particularly relevant information units into queries (for example, a sal