TY  - JOUR
PY  - 2014//
TI  - On-the-fly scheduling as a manifestation of partial-order planning and dynamic task values
JO  - Human factors
A1  - Hannah, Samuel D.
A1  - Neal, Andrew
SP  - 1093
EP  - 1112
VL  - 56
IS  - 6
N2  - OBJECTIVE: The aim of this study was to develop a computational account of the spontaneous task ordering that occurs within jobs as work unfolds ("on-the-fly task scheduling"). <br><br>BACKGROUND: Air traffic control is an example of work in which operators have to schedule their tasks as a partially predictable work flow emerges. To date, little attention has been paid to such on-the-fly scheduling situations. <br><br>METHOD: We present a series of discrete-event models fit to conflict resolution decision data collected from experienced controllers operating in a high-fidelity simulation. <br><br>RESULTS: Our simulations reveal air traffic controllers' scheduling decisions as examples of the partial-order planning approach of Hayes-Roth and Hayes-Roth. The most successful model uses opportunistic first-come-first-served scheduling to select tasks from a queue. Tasks with short deadlines are executed immediately. Tasks with long deadlines are evaluated to assess whether they need to be executed immediately or deferred. <br><br>CONCLUSION: On-the-fly task scheduling is computationally tractable despite its surface complexity and understandable as an example of both the partial-order planning strategy and the dynamic-value approach to prioritization.<p /> <p>Language: en</p>
LA  - en
SN  - 0018-7208
UR  - http://dx.doi.org/
ID  - ref1
ER  -