Work Performance Measurement of Data Entry Employees in E-Commerce Industry Based on Mental Workload Value

This reseach aimed to measure the mental workload of data entry processing tasks in the e-commerce industry based on mental workload value. It was to determine the factors influencing mental workload mainly induced by the data entry process. The experiments without work instruction and with two types of work instruction were conducted to diagnose the mental workload. The measurement of the initial mental workload condition of data entry employees was conducted in the laboratory. Then, the Electroencephalogram (EEG) measurement using sensors from Emotiv was performed every 30 minutes, and the data of EEG measurements (focus, engagement, and stress) were collected using the laptop. Meanwhile, pulse measurement (heart rate) was measured before and after the work. Raw National Aeronautics and Space Administration Task Load Index (NASA-TLX) and reaction time measurement were conducted after the work. Through these experiments, the researchers identify that mental effort and fatigue are the significant determinants of mental workload value in the data entry process of the e-commerce industry. In respect of the results of work performance analysis, it is recommended that the placement of work instruction should be near the employee. Then, the task demand (minimum completion target) should be adjusted according to each employee’s capacity.

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ANALYSIS OF DETERMINATION THE NUMBER PERSONNEL BASED ON WORKLOAD ACCORDING TO JOB DESCRIPTION (STUDY CASE IN ACCOUNTING INSTITUTIONS)

JOURNAL ASRO ◽

10.37875/asro.v10i1.89 ◽

2019 ◽

Vol 10 (1) ◽

pp. 34

Author(s):

Ahmadi Ahmadi ◽

Wahyu Endriyanto ◽

Benny Sukandari ◽

Agus Makhrowi

Keyword(s):

Mental Workload ◽

Optimal Number ◽

Physical Workload ◽

Job Description ◽

Workload Analysis ◽

Task Load ◽

Workload Measurement ◽

Measurement Analysis ◽

Nasa Tlx

The workload is highly related to efficient and effective human resource utilization in an organization to achieve organizational objectives, vision, and mission. Various methods are used to optimize the number of personnel in an organization so that each task can be completed quickly and precisely. Accounting Institutions are inseparable from problems regarding the lack of workload with the number of personnel working on it. The change of the Policy gives an impact on the change of Job Description and List of Personnel Arrangements of the organization. To overcome these issues, workload measurement, analysis can be used to determine the optimal amount of personnel required in their working units. This study uses a mental workload measurement so called NASA-TLX and physical workload measurement According to the applicable workload regulation that is in accordance with the Administrative Direction of Workload Analysis. Both methods are then carried out to be compared to each other. The results showed that the physical workload is required in the completion of tasks in each work unit. In addition, the determination of the optimal number of personnel using physical workload or appropriate tasks per task position based Job Description is performed. As a result, it is known that there is an excessive workload in the Sub Service Budget Cost work units with personal shortcomings. On the other hand, there is an excessive personnel number in Administrative Work, Sub Department of Finance Administration and Sub Department Financial Control. The overall conclusion of this study is a need for personnel reduction in a List of Personnel Arrangements currently known as Accounting Institutions to be 39 personnel instead of the existing 48 personnel. Keywords: Workload, NASA-TLX (Task Load Index), assignments Per Task title, Number of Optimal personnel

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ALLOCATION OF MARITIME TASK FORCE PERSONNEL UNIFIL CONTINGEN BASED ON ANALYSIS WORK LOADS

JOURNAL ASRO ◽

10.37875/asro.v10i2.112 ◽

2019 ◽

Vol 10 (2) ◽

pp. 11

Author(s):

Ahmadi Ahmadi ◽

Okol Sri Suharyo ◽

Arimbo Arimbo ◽

Aab Abdul Wahab

Keyword(s):

Task Force ◽

Mental Workload ◽

Physical Workload ◽

Index Number ◽

Task Load ◽

Workload Measurement ◽

Physical Burden ◽

Nasa Tlx ◽

The Right

The workload of an organization is related to the efficient and effective utilization of human resources so that it can realize the vision, mission and objectives of the organization. Various methods are used to optimize the number of personnel in an organization, so that each task can be completed effectively and efficiently. KRI Diponegoro-365 personnel as the TNI Maritime Task Force, the Garuda Contingent can not be separated from the problems regarding the lack of conformity to workload with the allocation of the number of available personnel. To overcome this, an analysis of workload measurement is needed which can then be used for determine the allocation of the right number of personnel needed in each division. This study uses the measurement of NASA-TLX mental workload and physical workload according to TNI Roles. Both of these methods are then compared between mental and physical burden that occurs. From the results of the comparison, it was found that physical workload is needed in the completion of tasks in each division. After a comparison, then the determination of the allocation of the number of personnel will be carried out using the physical workload approach based on the description of the tasks in each division. The results of the calculation will then show the division that has excess or lack of personnel. The overall results obtained from this study can be concluded that the number of maritime task force personnel using the Diponegoro class KRI is appropriate, but the allocation of personnel in each division needs to adjust to the existing workload. Keywords: Workload, NASA-TLX (Task Load Index), Number of Military Personnel

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MENTAL WORKLOAD AND ERGONOMIC ANALYSIS ON PRODUCTION DEPARTEMENT AT PT. XYZ

Journal of Industrial and Information Technology in Agriculture ◽

10.24198/jiita.v2i1.17720 ◽

2019 ◽

Vol 2 (1) ◽

Author(s):

Pashya Yafi Dhiya ◽

Devi Maulida Rahmah

Keyword(s):

Mental Workload ◽

Upper Body ◽

Entire Body ◽

Mental Work ◽

Task Load ◽

Work Posture ◽

Nasa Tlx ◽

Processing Division ◽

Ergonomic Analysis ◽

Rapid Entire Body Assessment

This research aims to identify mental workload on NASA-TLX for mental workload and packaging division and work posture on processing division at PT. XYZ. This research uses RULA and REBA methods for work posture. NASA-TLX (Task Load Index) is used to determine mental work in packaging division. RULA (Rapid Upper Limb Assessment) is used to determine the upper body musculoskeletal disorders (MSDs) injury in the process of production (which consists of weighing and processing station) at PT. XYZ and REBA (Rapid Entire Body Assessment) is used to determine entire body MSDs injury in the production process. Those methods are applied to indicate that the workers are in fact working above the safety limit. Based on NASA-TLX method, it is clear that 21 of 30 workers feel that the work is very heavy. Another case, two unusual postures are found, one is determined by the action level of worker who lifting 20 kgs sack of powder is 10, so the action level of REBA in this case is hardly dangerous. The other one is determined by a worker who entering an ingridient to the machine, weight of the ingridient is 17,05 kgs. It means more than 10 kgs, and thus it can affect body posture. Keywords: Ergonomics, NASA-TLX, REBA, RULA

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Redesain Metode Kerja Guna Reduksi Workload Fisik Dan Mental Pekerja Di Pt. Spu Palembang

Jurnal Tekno ◽

10.33557/jtekno.v17i2.1081 ◽

2020 ◽

Vol 17 (2) ◽

pp. 44-58

Author(s):

Heri Setiawan ◽

Christofora Desi Kusmindari

Keyword(s):

Heart Rate ◽

Calculation Method ◽

Mental Workload ◽

Physical Workload ◽

Task Load ◽

Process Measurement ◽

A Value ◽

Nasa Tlx ◽

Almost All ◽

Industrial Company

PT. SPU Palembang is an industrial company that produces Hospital Furniture and Rehabilitation products with the trademark SHIMA. This study aims to reduce the physical and mental workload received by workers in the Machine Shop Department. This research is focused on the production process .Measurement of physical workload uses the calculation of the worker's heart rate by calculating the percentage of Cardiovascular Load (CVL). Measurement of mental workload using the National Aeronautics and Space Administration Task Load Index (NASA-TLX) score calculation method. The results obtained based on the aspect of NASA-TLX before the proposal almost all workers receive a mental workload with a value of > 80 that is included in the category of heavy mental workloads except Milling-Drilling Workers (4) have a score < 80 in the category of moderate mental workload. After the proposal all workers have a score < 80 so that the mental workload received falls into the medium category. Based on the proposals applied to the Lathe Worker (1) and the Milling-Drilling Worker (4) namely the improvement of work methods in the process of turning, punching, and the proposed holding of a reminder as a tool to remember, the results obtained %CVL from both workers < 30%. Three other workers, although experiencing a decline, remained at > 30%. The category of mental workload received by workers from previously included in the category of heavy mental workload dropped to moderate

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Ageing drivers’ mental workload in real-time driving tasks based on subjective and objective measures

Journal of Engineering Research ◽

10.36909/jer.v9i3b.9205 ◽

2021 ◽

Vol 9 (3B) ◽

Author(s):

Nurul Izzah Abd Rahman ◽

◽

Siti Zawiah Md Dawal ◽

Nukman Yusoff ◽

◽

...

Keyword(s):

Mental Workload ◽

Control Group ◽

Complex Situation ◽

The Road ◽

Task Load ◽

Significant Difference ◽

Nasa Tlx ◽

On The Road ◽

Nasa Task Load Index ◽

And Control

The ageing drivers’ population is increasing rapidly, and they are exposed to disabilities due to degenerative processes, thus affecting their driving performance. The main objective of this study is to determine the mental workload of ageing drivers, while the second objective is to compare the mental workload between ageing drivers and control group. The methodology consisted of on-the-road experimental driving tasks that comprised three levels of situation complexity. The NASA-Task Load Index (NASA-TLX) and electroencephalogram (EEG) were measured on 30 drivers. The NASA-TLX scores revealed that the ageing drivers’ mean physical demand score was the highest compared to others in moderately complex situation and very complex situation, scoring 37.25 and 43.50, respectively. Meanwhile, for electroencephalogram signals’ fluctuation, results showed that situation complexity had significant effects on RPθ and RPα of channel locations FZPZ and O1O2. There was a significant difference in the weighted workload scores for the ageing drivers and control group in simple situation, while there was no significant difference found in RPθ and RPα bands at all channel locations. The findings would be beneficial as a guideline for designers, manufacturers, developers, and policy makers in designing better driving environment for ageing drivers.

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THE WORKLOAD ANALYSIS OF EMPLOYEE BY USING NATIONAL AERONAUTICS AND SPACE ADMINISTRATION-TASK LOAD INDEX METHOD (NASA-TLX)

Dinamika Rekayasa ◽

10.20884/1.dr.2017.13.2.181 ◽

2017 ◽

Vol 13 (2) ◽

pp. 81

Author(s):

Nur Azemil

Keyword(s):

Human Resources ◽

Mental Workload ◽

Educational Institutions ◽

Chi Square ◽

Index Method ◽

Workload Analysis ◽

Task Load ◽

High Workload ◽

Nasa Tlx ◽

And Performance

Development of manufacturing and service institutions can not be separated from the role of human resources. Human resources have an important role in fulfilling vision and mission. University of A is one of the private educational institutions in East Java to achieve the goal must be managed properly that can be utilized optimally, this can be done by analyzing workload and performance or optimizing the number of employees. The purpose this research is measure workload and effect the employee’s performance. Measurement of workload is using National Aeronautics and Space Administration-Task Load Index (NASA-TLX) method, NASA-TLX method is rating multidimentional subjective mental workload that divides the workload based on the average load of 6 dimensions, and the measurement of performance is using questionnaire with 5 scales by likert scale. The results showed that employees who have Medium workload is 8%, High workload is 84% and Very high workload is 8%. The result of the questionnaire showed the category of employee’s performance, simply performance is 24% and satisfactory performance is 76%. From the statistical test by using Chi Square method, it is known that the value = 5,9915 and = 2,2225, the result shows < , then is accepted and is rejected. Thus, there is influence between the workload of employees and the employees’s performance.

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Pengaruh Proses Bubut Baja AISI 4140 terhadap Mental Workload dengan Metode NASA-TLX

Jurnal Rekayasa Mesin ◽

10.21776/ub.jrm.2021.012.02.13 ◽

2021 ◽

Vol 12 (2) ◽

pp. 361-369

Author(s):

Meri Rahmi ◽

◽

Rachmatulllah Rachmatulllah ◽

Casiman Sukardi ◽

Keyword(s):

Work Performance ◽

Manufacturing Industry ◽

Mental Workload ◽

Important Variable ◽

Turning Process ◽

Steel Material ◽

Aisi 4140 ◽

High Workload ◽

Work Shifts ◽

Nasa Tlx

This study aims to analyze the mental workload with the experimental method when operating a lathe under two different conditions, namely by using cooling and without cooling. The material used as the specimen in this research is AISI 4140 material. Another important variable is the timing of the experiment in the morning and evening. This is related to the division of work shifts that often occurs in the manufacturing industry. The working time factor greatly affects work performance and vigilance at work. Based on the experimental results taken from 20 participants and processed with the NASA-TLX method, it shows that the mental workload in the lathe process with the addition of cooling is more significant than the lathe process without the addition of cooling, even though the data collection time is different. It is also directly proportional to the duration of the lathe process. So it can be concluded that the turning process is better to use cooling even on AISI 4140 Steel material because it does not require a high workload.

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Breakfast high in whey protein or carbohydrates improves coping with workload in healthy subjects

British Journal Of Nutrition ◽

10.1017/s0007114513000779 ◽

2013 ◽

Vol 110 (9) ◽

pp. 1712-1721 ◽

Cited By ~ 2

Author(s):

Nora Sihvola ◽

Riitta Korpela ◽

Andreas Henelius ◽

Anu Holm ◽

Minna Huotilainen ◽

...

Keyword(s):

Heart Rate ◽

Task Performance ◽

Whey Protein ◽

Healthy Subjects ◽

Mental Workload ◽

Controlled Study ◽

Task Load ◽

Plasma Tryptophan ◽

Nasa Tlx ◽

Nasa Task Load Index

Dietary components may affect brain function and influence behaviour by inducing the synthesis of neurotransmitters. The aim of the present study was to examine the influence of consumption of a whey protein-containing breakfast drink v. a carbohydrate drink v. control on subjective and physiological responses to mental workload in simulated work. In a randomised cross-over design, ten healthy subjects (seven women, median age 26 years, median BMI 23 kg/m2) participated in a single-blinded, placebo-controlled study. The subjects performed demanding work-like tasks after having a breakfast drink high in protein (HP) or high in carbohydrate (HC) or a control drink on separate sessions. Subjective states were assessed using the NASA Task Load Index (NASA-TLX), the Karolinska sleepiness scale (KSS) and the modified Profile of Mood States. Heart rate was recorded during task performance. The ratio of plasma tryptophan (Trp) to the sum of the other large neutral amino acids (LNAA) and salivary cortisol were also analysed. The plasma Trp:LNAA ratio was 30 % higher after the test drinks HP (median 0·13 (μmol/l)/(μmol/l)) and HC (median 0·13 (μmol/l)/(μmol/l)) than after the control drink (median 0·10 (μmol/l)/(μmol/l)). The increase in heart rate was smaller after the HP (median 2·7 beats/min) and HC (median 1·9 beats/min) drinks when compared with the control drink (median 7·2 beats/min) during task performance. Subjective sleepiness was reduced more after the HC drink (median KSS − 1·5) than after the control drink (median KSS − 0·5). There were no significant differences between the breakfast types in the NASA-TLX index, cortisol levels or task performance. We conclude that a breakfast drink high in whey protein or carbohydrates may improve coping with mental tasks in healthy subjects.

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THE MEASUREMENT OF NURSES’ MENTAL WORKLOAD USING NASA-TLX METHOD (A CASE STUDY)

Malaysian Journal of Public Health Medicine ◽

10.37268/mjphm/vol.20/no.special1/art.705 ◽

2020 ◽

Vol 20 (Special1) ◽

pp. 60-63

Author(s):

Nur I ◽

Iskandar H ◽

Ade RF

Keyword(s):

Mental Workload ◽

Task Load ◽

Average Value ◽

Mental Demand ◽

High Workload ◽

Nasa Tlx ◽

Years Of Service ◽

Primary Groups ◽

Very High

Nurse is a profession that has a quite high workload. It can be seen from how often they should encounter situations which compel them to undergo precisely right decision in saving patients’ lives. Various environmental conditions increase the frustration rate of the nurses, such as noise of the crowds and medical equipment, as well as smell of medicines and wounds at once. Moreover, demands from the patients’ family make it even tougher for them. Therefore, this study aims to measure the mental workload of the nurses at Intensive Care Unit (ICU) and emergency unit (IGD) in the Hospital ZA based on their years of service. The study was conducted using the method of NASA-TLX (National Aeronautics and Space Administration – Task Load Index). It measured the workload in six dimensions: Mental Demand (MD), Physical Demand (PD), Temporal Demand (TD), Own Performance (P), Effort (EF), and Frustration Rate (FR). The results of the study show that the average value of the nurses’ workload at ICU and IGD is in the category very high (respectively 80 and 83) for the nurses with 0-3 years of service, and the most contributing factor for both the primary groups is the effort (EF).

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Ergonomic Assessment of the Mental Workload Confronted by Surgeons during Laparoscopic Surgery

The American Surgeon ◽

10.1177/000313481808400964 ◽

2018 ◽

Vol 84 (9) ◽

pp. 1538-1543

Author(s):

Jianyang Zhang ◽

Shenglin Liu ◽

Qingmin Feng ◽

Jiaqi Gao ◽

Ju Cheng ◽

...

Keyword(s):

Eye Movement ◽

Pupil Diameter ◽

Mental Workload ◽

Subjective Evaluation ◽

Correlation Coefficients ◽

Established Method ◽

P Values ◽

Task Load ◽

Nasa Tlx ◽

Diameter Change

Although the mental workload confronted by laparoscopic surgeons is rather high, there is presently no reliable, established method for evaluating this workload. In the present study, four evaluation indices of eye movement metrics were applied to evaluate surgeons’ mental workload. Correlations between these indices and National Aeronautics and Space Administration Task Load Index (NASA-TLX) scores were also explored. Sixteen participants were recruited to complete four laparoscopic procedures. Eye movement was recorded during the tasks, and NASA-TLX scales were also introduced for subjective evaluation. The data were analyzed using R 3.3.2. Significant differences in the mental workload of each task were observed. Statistically significant correlations between mean pupil diameter change and NASA-TLX scores were also observed. The correlation coefficients were 0.763, 0.675, 0.405, and 0.547, and the P values correspondingly were 0.001, 0.004, 0.12, and 0.028, respectively. The results clarify that the mental workload of laparoscopic surgeons is dependent on the specific demands of the operation. Appropriate objective physiological indices can be used to identify the mental workload state of the surgeon.

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