Abstract: A method of communicating data objects includes the steps of assembling at least one business object by a request server (225) from data held in a data store (230) in a remote information system (240) and storing a corresponding business object in a cache (210) in a local information processing device (235). A business object update message updates data held in the data store (230) or the cache (210). Furthermore, the cache stores at least one business object comprising a plurality of data objects as one retrievable entity. In this manner, business logic may be removed from an application and a cache, thereby making them easier to implement and increase the portability between the cache (210) and different data stores (130). Additionally, an improved cache management communications protocol removes the need for an application to recover from network problems, making the application easier to write.