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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Yasmeen, A. Gunter, E.L. |
| Copyright Year | 2011 |
| Description | Author affiliation: Department of Computer Science, University of Illinois, Urbana, 61801, USA (Yasmeen, A.; Gunter, E.L.) |
| Abstract | Safety critical systems can suffer severe and even fatal consequences due to aberrant behavior of human operators. Human operators are unique in their decision making capability, judgment and nondeterminism. There is a need for analyzing the interactions among computer systems and human operators where the operators are allowed to deviate from their prescribed behaviors for executing a task. In this paper we wish to examine the ability of a system to remain safe under broad classes of variations of the prescribed human task. To facilitate this concept we consider the concept of a protection envelope giving a wider class of behaviors than strictly prescribed by the human task while providing guarantees of restrictions on human operator to the system. We develop methods for addressing two issues. The first issue is: given a human task specification and a protection envelope, will the protection envelope properties still hold under standard variations as described by Hollnagel [10]. The second issue is: in the absence of a protection envelope, can we approximate a protection envelope that will at least have the property of being robust against the aforementioned variations. We present methodology and tool for assisting in this regard. |
| Starting Page | 1809 |
| Ending Page | 1816 |
| File Size | 648922 |
| Page Count | 8 |
| File Format | |
| ISBN | 9781457706523 |
| ISSN | 1062922X |
| e-ISBN | 9781457706530 |
| DOI | 10.1109/ICSMC.2011.6083934 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2011-10-09 |
| Publisher Place | USA |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Humans Computers Robustness Computational modeling Safety Analytical models Radiofrequency identification human action variations task analysis human operator system robustness protection envelope |
| Content Type | Text |
| Resource Type | Article |
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