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Paper Abstract and Keywords
Presentation 2010-05-28 15:45
Software Service Availability Modeling with Operation-Oriented Restoration Scenario
Koichi Tokuno, Shigeru Yamada (Tottori Univ.) R2010-14
Abstract (in Japanese) (See Japanese page) 
(in English) This paper discusses the stochastic model for measuring software service availability; this is one of the customer-oriented attribute and defined as the attribute that the software system can successfully satisfy the end users' requests. From the viewpoint of a user, occurrence of a system failure is recognized when either one of the following two events arises: a software failure occurs when the user is using and operating the system, or a usage request occurs when the system is down. We propose and derive three kinds of novel service-oriented software availability assessment measure. The time-dependent behaviors of the system alternating between up and down state and the user's request are described by a Markov process. Then we incorporate the operation-oriented restoration scenario into the model, i.e., we consider the following two types of restoration: one is the restoration with debugging and the other is without debugging. Furthermore, the dynamic software reliability growth process, the upward tendency in difficulty of debugging, and the imperfect debugging environment are also included in software service availability modeling. Finally, we present several numerical examples of these measures for software service availability analysis.
Keyword (in Japanese) (See Japanese page) 
(in English) Service availability / User-perceived system down / Operation-oriented restoration scenario / Software reliability growth, / Markov process / / /  
Reference Info. IEICE Tech. Rep., vol. 110, no. 62, R2010-14, pp. 43-48, May 2010.
Paper # R2010-14 
Date of Issue 2010-05-21 (R) 
ISSN Print edition: ISSN 0913-5685    Online edition: ISSN 2432-6380
Copyright
and
reproduction		 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 R  
Conference Date 2010-05-28 - 2010-05-28 
Place (in Japanese) (See Japanese page) 
Place (in English)  
Topics (in Japanese) (See Japanese page) 
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Paper Information
Registration To R 
Conference Code 2010-05-R 
Language English (Japanese title is available) 
Title (in Japanese) (See Japanese page) 
Sub Title (in Japanese) (See Japanese page) 
Title (in English) Software Service Availability Modeling with Operation-Oriented Restoration Scenario 
Sub Title (in English)  
Keyword(1) Service availability  
Keyword(2) User-perceived system down  
Keyword(3) Operation-oriented restoration scenario  
Keyword(4) Software reliability growth,  
Keyword(5) Markov process  
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1st Author's Name Koichi Tokuno  
1st Author's Affiliation Tottori University (Tottori Univ.)
2nd Author's Name Shigeru Yamada  
2nd Author's Affiliation Tottori University (Tottori Univ.)
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Speaker Author-1 
Date Time 2010-05-28 15:45:00 
Presentation Time 25 minutes 
Registration for R 
Paper # R2010-14 
Volume (vol) vol.110 
Number (no) no.62 
Page pp.43-48 
#Pages 6 
Date of Issue 2010-05-21 (R) 

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