The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 12, 1999
Filed:
May. 30, 1995
Shuji Nishiyama, Hitachi, JP;
Hiroaki Nakanishi, Hitachi, JP;
Hideki Sato, Katsuta, JP;
Hiroshi Kobayashi, Katsuta, JP;
Shigeru Endo, Ibaraki-ken, JP;
Toshimasa Saika, Hitachiota, JP;
Teruyasu Nakahashi, Hitachi, JP;
Hiroyuki Hori, Hitachi, JP;
Tomohito Ebina, Hitachi, JP;
Keiichi Sannomiya, Hitachi, JP;
Shimako Tanno, Hitachi, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Process Engineering, Inc., Hitachi, JP;
Abstract
A computer system is so configured as to be divided into a control system which should have high reliability and high responsiveness and an information system which does not access the control system. They are connected via a transmission path (transmission path of control system and transmission path of information system). Centralized management of development and maintenance is performed from a software maintenance system. In development and maintenance of software, management according to the feature of each software such as processing contents of each software, demanded reliability, and version up frequency is performed from a maintenance system for exclusive use by using a transmission path of information system. Thereby, development and maintenance having high reliability and expandability is realized.