Identification of task demands and usability issues in police use of mobile computing terminals

Zahabi, Maryam; Kaber, David B.

doi:10.1016/j.apergo.2017.08.013

Cited by 26 publications

(23 citation statements)

References 9 publications

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“…As the nature of crime changes and multiplies, public security institutions must adapt and train their workers, also known as ‘tactical professionals’ to meet these challenges [ 2 , 3 , 4 ]. Daily tasks performed in police work may range between low-intensity activities (i.e., prolonged time sitting in the police car or querying databases) to dynamic high-intensity physical tasks (i.e., a foot pursuit negotiating obstacles, such as fences, and subsequently restraining a non-compliant offender) [ 2 , 5 , 6 ]. The diversity of these tasks requires a combination of physical capabilities by police officers [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Profile of Self-Reported Physical Tasks and Physical Training in Brazilian Special Operations Units: A Web-Based Cross-Sectional Study

Marins

Barbosa

Machado

et al. 2020

IJERPH

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There is limited research examining the physical tasks that Brazilian special policemen groups can perform in the line of duty. The aims of this study were to (a) identify the occupational tasks of specialist police personnel serving in the Rapid Response Group (GRR) and Tactical Operations Command (COT), and to profile the frequency, difficulty, and importance of these tasks, and (b) to explore the current physical training these special operations police units (SOPUs) officers undertake to maintain their operational fitness. Univariate analysis for numerical variables (mean and standard deviation (SD)), as well as the absolute and relative frequencies for categorical variables were performed. Two Brazilian SOPUs performed a questionnaire with demographic, performance, and physical training sections. A total of 78 respondents (24 of the GRR and 54 of the COT) completed the survey. “Standing and/or sitting with complete equipment for long periods in different climatic conditions”, and “lifting/pushing/pulling heavier objects” were the most frequent and difficult occupational tasks of both SOPUs, respectively. “Shooting a long weapon” and “breaking a door” were the most important for GRR and COT, respectively. All officers undertook regular physical training (~9 h/week), in an unstructured manner, without supervision, and planning of physical training is carried out autonomously (COT) or a mixture of autonomously and directed (GRR), with the main objectives of developing aerobic endurance and muscle strength. It is important that SOPUs teams train their members’ physical capabilities to perform the tasks identified in this study, as well as follow a structured, supervised, and planned physical training program.

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Section: Introductionmentioning

confidence: 99%

Profile of Self-Reported Physical Tasks and Physical Training in Brazilian Special Operations Units: A Web-Based Cross-Sectional Study

Marins

Barbosa

Machado

et al. 2020

IJERPH

View full text Add to dashboard Cite

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“…For example, in an early investigation and using Goals, Operations, Methods, and Selection rules (GOMS) modeling, Callander and Zorman (2007) found that using the MCT required significantly higher off-road glances as compared to the use of radio for the same task. In our previous study (Zahabi & Kaber, 2018a), it was found that some MCT tasks are more visually and cognitively demanding (e.g., reading plate information) while driving as compared to other MCT modules (e.g., orientation on map). Using heuristic evaluation, it was found that the principles of "simple and natural dialog" and "minimizing cognitive workload" were violated in the current MCT design.…”

Section: Mct Usability Evaluationmentioning

confidence: 94%

“…To address the identified usability issues and using human factors principles, we designed an enhanced MCT interface. Our initial comparison of the enhanced MCT design with the original design using human performance modeling approach showed improvements in terms of reducing cognitive and perceptual demands (Zahabi & Kaber, 2018a).…”

Section: Mct Usability Evaluationmentioning

confidence: 99%

“…MCTs are not originally designed to be used while driving; however, due to the job requirements, many police officers confirm using the technology while the vehicle is in motion (Callander & Zorman, 2007). Prior studies found the MCT to be the most important and frequently used in-vehicle technology for police officers (Zahabi & Kaber, 2018a). Police MVCs caused by in-vehicle technologies have motivated researchers to evaluate the usability of these systems especially the MCT.…”

Section: Introductionmentioning

confidence: 99%

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An Application of Machine Learning for Police Mobile Computer Terminal Usability Evaluation

Zahabi

McCollum

2019

Proceedings of the Human Factors and Ergonomics Society Annual

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Police in-vehicle technologies especially mobile computer terminals (MCTs) are the major cause of motor vehicle crashes for law enforcement officers. Previous studies have found several usability issues with the design of MCT interfaces. The objective of this study was to develop an algorithm for classification of MCT interface usability based on a combination of officer performance, visual attention allocation, and subjective measures. It was found that speed deviation, secondary task completion time, off-road fixation frequency and glance duration are informative features that associate with MCT usability. The developed algorithm has the potential to be used in MCT design and development process to ensure efficient interaction in multi-tasking situations of driving and using the MCT.

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“…For example, the provider might have difficulty in looking at the patient and reading information from the EMR as both tasks require visual system resources. Previous studies used working memory (WM) chunk count in GOMS models as an indicator of cognitive demands (e.g., Zahabi and Kaber, 2018). It was found that cognitive overload may occur when more than five chunks of information must be maintained in WM at any given time (Kieras et al, 1999).…”

Section: Cognitive Task Performance Modelingmentioning

confidence: 99%

Impact of Electronic Medical Records on Patient-Provider Communication

Zahabi

Lyman

2019

Proceedings of the International Symposium on Human Factors and

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Previous research found electronic medical records (EMRs) to have negative impact on patient-provider (PP) communication. However, very few studies were focused on specific age ranges especially young generation. The objectives of this study were to: (1) assess the perception of young adults and healthcare providers regarding the effect of EMRs on PP interaction; and (2) investigate the use of cognitive modeling as an analytical tool to predict the impact of EMRs on PP communication. Findings suggested that young adults have positive opinion regarding the use of EMRs during outpatient visits. Cognitive task perfor-mance modeling has the potential to predict visual, cognitive, and motor demands associated with using EMRs. Future studies should be conducted to improve the generalizability of findings.

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Identification of task demands and usability issues in police use of mobile computing terminals

Cited by 26 publications

References 9 publications

Profile of Self-Reported Physical Tasks and Physical Training in Brazilian Special Operations Units: A Web-Based Cross-Sectional Study

Profile of Self-Reported Physical Tasks and Physical Training in Brazilian Special Operations Units: A Web-Based Cross-Sectional Study

An Application of Machine Learning for Police Mobile Computer Terminal Usability Evaluation

Impact of Electronic Medical Records on Patient-Provider Communication

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