proposing task analysis to identify error on job activity ... presentations/a30_acsel 2015... ·...
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Proposing Task Analysis to Identify
Error on Job Activity in The Lab
By :Roslinormansyah
Soni WidodoFitri Rosyari Nur Afrianthie
Wini Handayani
2nd Asian Conference on Safety and Education in LaboratoryDecember 2nd, 2015
Universitas Indonesia
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Purpose
• Getting a clear picture of the activities of the following support elementsbeing worked
• Knowing the purpose of the activity in detail
• Able to seek alternatives to activities that can be done, especially tofacilitate the work
• Preventing errors when doing activities in the laboratoryidentifying the actual conditions of a particular taskanalyzing the likelihood of error for the working task
• Identifying the source of the error (error) on the issue of performancetask is done, to further look for solutions to problems such performance
• Identification of potential hazards, and appropriate correspondingprotection measures
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Background
• The number of occupational risk in lab
• Error prevention activities in the lab
• Anticipation hazardous event
• Ensure personnel competency lab
• Many incidents in the lab due to an error in the lab work
• According to various sources to 80% due to the sequence of work that does have the potential dangers of its own
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Task Decomposition
Aims:- Describe the actions people do structure them within task subtask hierarchy describe order of subtasks
Focus on Hierarchical Task Analysis (HTA):- Text and diagrams to show hierarchy plans to describe order
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What is Task Analysis?
• what people do
• what things they work with
• what they must know
Methods of analyzing people's jobs:
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Task Analysis
Task analysis is the analysis of how a task isaccomplished, including a detailed description ofboth manual and mental activities, task andelement durations, task frequency, taskallocation, task complexity, environmentalconditions, necessary clothing and equipment,and any other unique factors involved in orrequired for one or more people to perform agiven task
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Who will assess : Safety assessors involved in risk assessments, ergonomists, involved in evaluations, or others who must perform an evaluative function
Method : work safety analysis looks in detail at each step of the task to see what hazards could occur, and to provide a rough quantitative calculation of their relative risks, and hence what barriers are needed.
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Hierarchy description ...
0. in order to clean the house
1. get the vacuum cleaner out
2. get the appropriate attachment
3. clean the rooms
3.1. clean the hall
3.2. clean the living rooms
3.3. clean the bedrooms
4. empty the dust bag
5. put vacuum cleaner and attachments away
... and plans
Plan 0: do 1 - 2 - 3 - 5 in that order. when the dust bag gets full do 4
Plan 3: do any of 3.1, 3.2 or 3.3 in any order depending on which rooms
need cleaning
N.B. only the plans denote order
Textual HTA description
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Diagrammatic HTA
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Advantage of Using Task Analysis
Ensure the competence required in accordance with
the prediction error will occur.
Detect any tendency of the occurrence of errors in the
task undertaken;
Anticipating Hazardous Event while activity in the
Laboratory
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Reference
• Tzu-Hsien Lee, Tzu., Hanr,Chia-Shan., (2013), Analysis of Working Postures at a Construction Site Using the OWAS Method,
International Journal of Occupational Safety and Ergonomics (JOSE), Vol. 19, No. 2, p245–250
• Salvendy, Gavriel., (2001), Handbook of Industrial Engineering : Technology and Operations Management, 3-rd Edition, John
Wiley & Sons, Canada
• Braveman, Brent., Page, J.J., (2012), WORK : Promoting Participation and Productivity Through Occupational Therapy, 1-st
edition, F.A. Davis Company, Philadelphia, USA
• Karwowski, W., Marras,W.S., (1999), The Occupational Ergonomics Handbook, CRC Press, Boca Raton, Florida, USA
• Robertson, S.A., (1994), Contemporary Ergonomics, Proceedings of the Ergonomic Society's 1994 Annual Conference,
University of Warwick, Taylor and Francis Ltd, London
• Eurofound, (2007), European Foundation for the Improvement of Living and Working Conditions, European Working
Conditions Survey (EWCS) 4
• EU OSHA, (2007), European Agency for Safety and Health at Work, E-facts 45 - Checklist for preventing bad working postures,
EU, London
• Steinberg, U., (2012), New tools in Germany: development and appliance of the first two KIM ("lifting, holding and carrying"
and "pulling and pushing") and practical use of these methods', Work: A Journal of Prevention, Assessment and Rehabilitation,
Vol. 41, p3990-3996
• Bao, S., Howard, N., Spielholz, P., Silverstein, B., (2006), Quantifying repetitive hand activity for epidemiological research on
musculoskeletal disorders – Part II: comparison of different methods of measuring force level and repetitiveness, Ergonomics,
Vol. 49, No. 4, p.381-392
• Anonim, 2015, OWAS, (source : http://www.ttl.fi/en/ergonomics/methods/workload_exposure_
methods/table_and_methods/Documents/OWAS.pdf), downloaded on Nov 4, 2015 at 3.00 pm
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Thank You