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Paper Abstract and Keywords
Presentation 2012-03-16 17:40
Proposal and Evaluation of Risk Quantification Method for Configuration Changes in Virtualized IT Systems
Tatsuya Sato, Masahiro Yoshizawa, Yoshio Suzuki, Ken Naono (Hitachi) ICM2011-74
Abstract (in Japanese) (See Japanese page) 
(in English) System engineers must review new configuration when configuration changes are applied to IT system. The amount of configuration information in the IT system increases when virtualization technologies are adopted in the IT system. In the case, the time required for reviewing new configuration also increases. In this paper, we propose a risk quantification method for configuration changes, to reduce the time of review with accuracy of the review. This method calculates the risk of design errors included in the configuration changes based on trends of past changes, and highlights the high risk parts in the changes. An evaluation on the time and accuracy of review with 6 examinees was conducted. The result of evaluation shows that the proposed method can reduce the time of review by 51 percent without almost any increase in operational errors, compared to a traditional method highlighting the difference between the configuration before and after change. The result suggests the possibility that the proposed method is effective for actual operations required for configuration changes in virtualized IT systems.
Keyword (in Japanese) (See Japanese page) 
(in English) Operations and Management / Configuration Management / Configuration Change / Review Support / Risk Quantification / / /  
Reference Info. IEICE Tech. Rep., vol. 111, no. 488, ICM2011-74, pp. 155-160, March 2012.
Paper # ICM2011-74 
Date of Issue 2012-03-08 (ICM) 
ISSN Print edition: ISSN 0913-5685  Online edition: ISSN 2432-6380
All rights are reserved and no part of this publication may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopy, recording, or any information storage and retrieval system, without permission in writing from the publisher. Notwithstanding, instructors are permitted to photocopy isolated articles for noncommercial classroom use without fee. (License No.: 10GA0019/12GB0052/13GB0056/17GB0034/18GB0034)
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Conference Information
Committee ICM  
Conference Date 2012-03-15 - 2012-03-16 
Place (in Japanese) (See Japanese page) 
Place (in English) Dan-jo Kyoudou Sankaku Center 
Topics (in Japanese) (See Japanese page) 
Topics (in English) Element Management, Management Functionalities, Operations and Management Technologies 
Paper Information
Registration To ICM 
Conference Code 2012-03-ICM 
Language Japanese 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Proposal and Evaluation of Risk Quantification Method for Configuration Changes in Virtualized IT Systems 
Sub Title (in English)  
Keyword(1) Operations and Management  
Keyword(2) Configuration Management  
Keyword(3) Configuration Change  
Keyword(4) Review Support  
Keyword(5) Risk Quantification  
1st Author's Name Tatsuya Sato  
1st Author's Affiliation Central Research Laboratory, Hitachi, Ltd. (Hitachi)
2nd Author's Name Masahiro Yoshizawa  
2nd Author's Affiliation Central Research Laboratory, Hitachi, Ltd. (Hitachi)
3rd Author's Name Yoshio Suzuki  
3rd Author's Affiliation Strategy Planning & Development Office, Information & Telecommunication Systems Company, Hitachi, Ltd (Hitachi)
4th Author's Name Ken Naono  
4th Author's Affiliation Central Research Laboratory, Hitachi, Ltd. (Hitachi)
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Date Time 2012-03-16 17:40:00 
Presentation Time 20 
Registration for ICM 
Paper # IEICE-ICM2011-74 
Volume (vol) IEICE-111 
Number (no) no.488 
Page pp.155-160 
#Pages IEICE-6 
Date of Issue IEICE-ICM-2012-03-08 

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