Abstract: The efficiency of interprocess communication within a computer system, as well as the efficiency of webservice calls and responses over a network between several computers or other information processing systems, is improved by means of three innovations: A general-purpose data format which can be parsed much more efficiently than XML by computer programs, because each data value is preceded by an integer number that allows the parser to determine how much memory needs to be allocated to store the data value. A general-purpose data transport protocol achieves performance improvements through allowing multiple webservice requests and responses to be transmitted over a single connection. On top of that, a general-purpose webservice protocol provides additional flexibility not available in traditional webservice protocols, because it supports redirection of webservice responses, signals, exceptions and asynchronous as well as synchronous execution.