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HCI
BY:
ASAD KHAN
LECTURER IN CS GPGC LAKKI MARWAT
1
Ergonomics
2
Ergonomics (ergon=work nomoi= natural laws/study)
 Ergonomics is the study of optimizing the interface between human beings and the designed
objects and environments they interact with.
 An ergonomically designed product implies that the device blends smoothly with a person’s body
or actions.
 It is also the science of people- machine relationships.
Cont..
3
 Study of the relationship between people and the furniture,
 tools, and
 machinery they use at work.
 The object is to improve work performance by removing sources of muscular stress and general
fatigue,
 For example by presenting data and control panels in easy-to-view form,
 making office furniture comfortable,
 and creating a generally pleasant environment.
Cont..
4
 It is the applied science of equipment design as for workplace, intended to maximize productivity
by reducing operator fatigue or discomfort.
 Also called biotechnology, human engineering, human factors engineering.
Ergonomics (or Human Factors):
 Is the scientific discipline concerned with the understanding of interactions among humans and
other elements of a system,
 and the profession that applies theory,
 principles,
 data and methods to design in order to optimize human well-being and
 overall system performance.
Physical Ergonomics
5
 Deals with the human body’s responses to physical and physiological loads.
 Relevant topics: Manual materials handling Workstation layout Job demands Risk factors such as
repetition, vibration, etc.
Cognitive Ergonomics
6
 Also known as engineering psychology concerns mental processes such as
 perception,
 attention,
 cognition,
 motor control, and
 memory storage and retrieval as they affect interactions.
Relevant topics:
 –Mental workload
 –Decision-making
 –Human-computer interaction
 –training
Organizational Ergonomics
7
 Also known as macro-ergonomics is concerned with the optimization of sociotechnical systems,
including their
 Organizational structures,
 Policies and processes.
 Relevant topics:
 Shift work
 Scheduling Job
 satisfaction
 Supervision
 Teamwork.
Contribution of Ergonomics
8
Ergonomics contributes to the design and evaluation of:
 tasks,
 jobs,
 products,
 environments
 and, systems in order to make them compatible with the needs,
 abilities and limitations of people (IEA, 2000).
Goals of Ergonomics
9
 Occupational injury and illness reduction
 Worker’s compensation costs containment
 Productivity improvement
 Work quality improvement
 Absenteeism reduction
 Government regulation compliance
Methods of achieving the goals
10
 Evaluation and control of work site risk factors
 Identification and quantification of existing work site risk conditions
 Recommendation of engineering and administrative controls to reduce the identified risk conditions
 Education of management and workers to risk conditions.
Human Factors
11
 Human factors is a set of structured methods and principles for identification, quantification and
evaluation of the user’s needs and tasks for the development of systems, products, services and
environments
 Human Factors is a term mainly used in the United States.
 In Europe and the rest of the world, the term ergonomics is more prevalent.
 It is the study of how humans behave physically and psychologically in relation to particular
environments, products, or services.
 The term usability is sometimes used as an alternative to ERGONOMY.
 Although human factors is really a larger area of study, including responses that are unrelated to
usability, such as reactions and preferences in relation to visual and other sensory stimuli.
Benefits gained by implementing Human Factors in a development and a
modification project 12
 Increased safety
 Reduced possibility of human error
 Increased user value, satisfaction and user friendliness
 Faster learning
 Lower rate of failure
 Improved stability
 Reduced probability of redesign
 Reduced costs in design and operation
 Improved communication between professions.
13

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HCI_Lec-15.pptx

  • 1. HCI BY: ASAD KHAN LECTURER IN CS GPGC LAKKI MARWAT 1
  • 2. Ergonomics 2 Ergonomics (ergon=work nomoi= natural laws/study)  Ergonomics is the study of optimizing the interface between human beings and the designed objects and environments they interact with.  An ergonomically designed product implies that the device blends smoothly with a person’s body or actions.  It is also the science of people- machine relationships.
  • 3. Cont.. 3  Study of the relationship between people and the furniture,  tools, and  machinery they use at work.  The object is to improve work performance by removing sources of muscular stress and general fatigue,  For example by presenting data and control panels in easy-to-view form,  making office furniture comfortable,  and creating a generally pleasant environment.
  • 4. Cont.. 4  It is the applied science of equipment design as for workplace, intended to maximize productivity by reducing operator fatigue or discomfort.  Also called biotechnology, human engineering, human factors engineering. Ergonomics (or Human Factors):  Is the scientific discipline concerned with the understanding of interactions among humans and other elements of a system,  and the profession that applies theory,  principles,  data and methods to design in order to optimize human well-being and  overall system performance.
  • 5. Physical Ergonomics 5  Deals with the human body’s responses to physical and physiological loads.  Relevant topics: Manual materials handling Workstation layout Job demands Risk factors such as repetition, vibration, etc.
  • 6. Cognitive Ergonomics 6  Also known as engineering psychology concerns mental processes such as  perception,  attention,  cognition,  motor control, and  memory storage and retrieval as they affect interactions. Relevant topics:  –Mental workload  –Decision-making  –Human-computer interaction  –training
  • 7. Organizational Ergonomics 7  Also known as macro-ergonomics is concerned with the optimization of sociotechnical systems, including their  Organizational structures,  Policies and processes.  Relevant topics:  Shift work  Scheduling Job  satisfaction  Supervision  Teamwork.
  • 8. Contribution of Ergonomics 8 Ergonomics contributes to the design and evaluation of:  tasks,  jobs,  products,  environments  and, systems in order to make them compatible with the needs,  abilities and limitations of people (IEA, 2000).
  • 9. Goals of Ergonomics 9  Occupational injury and illness reduction  Worker’s compensation costs containment  Productivity improvement  Work quality improvement  Absenteeism reduction  Government regulation compliance
  • 10. Methods of achieving the goals 10  Evaluation and control of work site risk factors  Identification and quantification of existing work site risk conditions  Recommendation of engineering and administrative controls to reduce the identified risk conditions  Education of management and workers to risk conditions.
  • 11. Human Factors 11  Human factors is a set of structured methods and principles for identification, quantification and evaluation of the user’s needs and tasks for the development of systems, products, services and environments  Human Factors is a term mainly used in the United States.  In Europe and the rest of the world, the term ergonomics is more prevalent.  It is the study of how humans behave physically and psychologically in relation to particular environments, products, or services.  The term usability is sometimes used as an alternative to ERGONOMY.  Although human factors is really a larger area of study, including responses that are unrelated to usability, such as reactions and preferences in relation to visual and other sensory stimuli.
  • 12. Benefits gained by implementing Human Factors in a development and a modification project 12  Increased safety  Reduced possibility of human error  Increased user value, satisfaction and user friendliness  Faster learning  Lower rate of failure  Improved stability  Reduced probability of redesign  Reduced costs in design and operation  Improved communication between professions.
  • 13. 13