Hitachi, Ltd.

Hitachi Seibu Soft Ware Co., Ltd.

Masaaki Hatano

Tetsuya Watanabe

Hiromichi Ishikawa

In a distributed system having a plurality of interconnected computer systems each having an application program, a process manager which determines the need for a communication process, determines an identifier of a destination system and a protocol and issues a communication process request in response to a process request for database access from the application program, and a virtual communication user for determining an application context in response to the communication process request from the process manager are provided, and a communication path a protocol machine establishes for the virtual communication user. A plurality of virtual communication users for managing the communication process are provided and each virtual communication user manages a plurality of protocol machines so that a plurality of protocols and application programs are simultaneously used for a plurality of destination systems from one application program.

Growing community of inventors

Osaka, Japan

Masaaki Hatano