| Paper Abstract and Keywords |
| Presentation |
2006-07-14 16:10
Disappointment probability of software system in operational use
Koichi Tokuno, Shigeru Yamada (Tottori Univ.) |
| Abstract |
(in Japanese) |
(See Japanese page) |
| (in English) |
We discuss the software availability modeling from the viewpoint of the user who uses the system intermittently. The existing software availability measures pay attention to only whether or not the system is operating at a given time point. However, from the viewpoint of users, occurrence of a system failure is recognized when the following events arise: (i) a software failure occurs when the system is being in use, or (ii) a usage demand occurs when the system is under restoration. In this paper, several new measures for software availability assessment are derived; these are called the disappointment probabilities in use, due to demand rejection, and under restoration, respectively. These measures are given as the functions of time and the number of debuggings. It is supposed that the usage demand of the system occurs randomly and that the user's demand duration is also random. The time-dependent behavior of the system itself alternating between up and down states is described by a Markov process. Then the software reliability growth process, the upward tendency in difficulty of debugging, and the imperfect debugging environment are also considered. Furthermore, we describe the difference of the software failure-occurrence and the restoration characteristics between the testing phase of the software development process and the user operation phase with the idea of the accelerated life testing model. |
| Keyword |
(in Japanese) |
(See Japanese page) |
| (in English) |
Software availability / Intermittent use / Disappointment probability / Markov process / Software reliability growth / / / |
| Reference Info. |
IEICE Tech. Rep., vol. 106, no. 159, R2006-26, pp. 43-48, July 2006. |
| Paper # |
R2006-26 |
| Date of Issue |
2006-07-07 (R) |
| ISSN |
Print edition: ISSN 0913-5685 |
| Download PDF |
|
| Conference Information |
| Committee |
R |
| Conference Date |
2006-07-14 - 2006-07-14 |
| Place (in Japanese) |
(See Japanese page) |
| Place (in English) |
Wakkanai-shi-Sougou-Bunka-Kaikan |
| Topics (in Japanese) |
(See Japanese page) |
| Topics (in English) |
Reliability Engineering |
| Paper Information |
| Registration To |
R |
| Conference Code |
2006-07-R |
| Language |
Japanese |
| Title (in Japanese) |
(See Japanese page) |
| Sub Title (in Japanese) |
(See Japanese page) |
| Title (in English) |
Disappointment probability of software system in operational use |
| Sub Title (in English) |
|
| Keyword(1) |
Software availability |
| Keyword(2) |
Intermittent use |
| Keyword(3) |
Disappointment probability |
| Keyword(4) |
Markov process |
| Keyword(5) |
Software reliability growth |
| Keyword(6) |
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| Keyword(7) |
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| Keyword(8) |
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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 |
2006-07-14 16:10:00 |
| Presentation Time |
25 minutes |
| Registration for |
R |
| Paper # |
R2006-26 |
| Volume (vol) |
vol.106 |
| Number (no) |
no.159 |
| Page |
pp.43-48 |
| #Pages |
6 |
| Date of Issue |
2006-07-07 (R) |