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:
Jun. 01, 2010
Filed:
Sep. 30, 2005
Nobuhisa Takezawa, Tokyo, JP;
Katsuhiko Nakahara, Tokyo, JP;
Yuuji Uenohara, Tokyo, JP;
Masayuki Takayama, Tokyo, JP;
Hiroaki Okuda, Tokyo, JP;
Nobuhisa Takezawa, Tokyo, JP;
Katsuhiko Nakahara, Tokyo, JP;
Yuuji Uenohara, Tokyo, JP;
Masayuki Takayama, Tokyo, JP;
Hiroaki Okuda, Tokyo, JP;
Toshiba Solutions Corporation, Tokyo, JP;
Abstract
A system includes an input unit () to which failure information corresponding to failure modes of constituents indicating software and hardware, a system configuration information and a standard value of system availability are inputted, a producing unit () producing a fault tree based on the system configuration information, a calculating unit () calculating unavailability corresponding to the failure modes based on a result of analyzing the failure information, and calculating system availability based on the calculated unavailability and the fault tree, a determining unit () determining whether the system availability meets the standard value, an extracting unit () extracting a basic event related to an increase in the system availability when the system availability is determined to be below the standard value, and resetting units () resetting new unavailability and the like based on whether it is possible to reduce the unavailability of the extracted basic event.