A colored petri nets based workload evaluation model and its validation through Multi-Attribute Task Battery-II.
This paper proposed a colored petri nets based workload evaluation model. A formal interpretation of workload was firstly introduced based on the process that reflection of petri nets components to task. A petri net based description of Multiple Resources theory was given by comprehending it from a new angle. A new application of VACP rating scales named V/A-C-P unit, and the definition of colored transitions were proposed to build a model of task process. The calculation of workload mainly has the following four steps: determine token's initial position and values; calculate the weight of directed arcs on the basis of the rules proposed; calculate workload from different transitions, and correct the influence of repetitive behaviors. Verify experiments were carried out based on Multi-Attribute Task Battery-II software. Our results show that there is a strong correlation between the model values and NASA -Task Load Index scores (r=0.9513). In addition, this method can also distinguish behavior characteristics between different people.
State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China. Electronic address: c2t53y48@gmail.com.
Peng
P
Wang
State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China. Electronic address: wnfang@bjtu.edu.cn.
Weining
W
Fang
State Key Laboratory of Rail Traffic Control and Safety, Beijing Jiaotong University, No. 3 Shang Yuan Cun, Haidian District, 100044 Beijing, China. Electronic address: byguo@bjtu.edu.cn.
Beiyuan
B
Guo
D000161:Acoustic Stimulation; D000328:Adult; D001519:Behavior; D003071:Cognition; D005260:Female; D006801:Humans; D008297:Male; D008328:Man-Machine Systems; D008962:Models, Theoretical; D010775:Photic Stimulation; D005082:Physical Exertion; D013647:Task Performance and Analysis; D013997:Time Factors; D016526:Workload / Q000523:psychology; D055815:Young Adult
Colored petri nets; Multi-Attribute Task Battery-II; Workload