| タイトル | Latent-failure risk estimates for computer control |
| 著者（英） | Dunn, William R.; Folsom, Rolfe A.; Green, Owen R. |
| 著者所属（英） | NASA Ames Research Center |
| 発行日 | 1991-01-01 |
| 言語 | eng |
| 内容記述 | It is shown that critical computer controls employing unmonitored safety circuits are unsafe. Analysis supporting this result leads to two additional, important conclusions: (1) annual maintenance checks of safety circuit function do not, as widely believed, eliminate latent failure risk; (2) safety risk remains even if multiple, series-connected protection circuits are employed. Finally, it is shown analytically that latent failure risk is eliminated when continuous monitoring is employed. |
| NASA分類 | QUALITY ASSURANCE AND RELIABILITY |
| レポートNO | 92A42087 |
| 権利 | Copyright |
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