Software application integration including providing a multiplicity of predefined data communications receivers, each receiver specific to a software application and a communications protocol; providing a multiplicity of predefined data communications senders, each sender specific to a software application and a communications protocol; providing one or more transports, each transport having the capability of configuring itself, in dependence upon configuration parameters from a profile, with a receiver and a sender; providing a multiplicity of predefined transfer managers; providing an adapter profile identifying communications transports, including receivers and senders, and, optionally, one or more transfer managers, wherein the adapter profile includes configuration parameters for the data communications transports and the transfer managers; and constructing an application integration adapter in dependence upon the profile, wherein the adapter comprises the transports, receivers, senders, and the transfer managers identified in the profile.