08-10-2012, 01:10 PM
HUMAN COMPUTER INTERACTION
HUMAN COMPUTER.ppt (Size: 260 KB / Downloads: 22)
INTRODUCTION
Human factors related to computer can roughly divided into topics related to hardware design & topics related to design of the software interface
Hardware should be designed to maximize task perfomance & minimize ergonomic problems or hazards
Software interface refers to the information provided by the computer and the control mechanisms for information inputting
Interface
A point where two objects meet.
A point where the human can tell the computer what to do.
A point where the computer displays the requested information.
Importance of HCI
Productivity
individual (e.g. installations, word processing)
organisational (changing job content, satisfaction, working environment, power and influence)
Safety (e.g. nuclear plants, flight control)
Disciplines, contributing to HCI
Computer science
Cognitive psychology
Social & organisational psychology
Ergonomics
Artificial intelligence
Linguistics
Philosophy, sociology, anhtropology
Principles of HCI design
Recognise diversity
Strive for consistency
Informative feedback
Error prevention and similar error handling
Reduce short term memory load
Computer Match
A good interface match would include as many senses as possible.
Computer input and output is basically seeing what we enter and what is displayed.
Sound can be added to some programs, either by giving instructions by voice, or listening to a commentary / music.
Touch can be in the form of using the mouse, a joystick, or a drawing tablet.
Virtual Reality
Virtual Reality is a computer interface.
The applications programs combine the interfaces already mentioned to give a simulated three dimensional world of sight, sound, touch and movement.
Interaction may be made through special equipment such as: spectacles, gloves, sound systems, and the computer and monitor.
As these types of interfaces develop and become more advanced (realistic) through high level programming, so the human use will become more common and so it will seem to be similar to communication with other humans.
Natural Language
Normal speech recognised by a computer is Natural Language Interface. Talk to a computer and it recognises what we want.
Natural means human-like, and the technology is leaning towards getting computers to behave in a more natural way.
Graphical User Interface (GUI)
Used on computers first by Apple Macintosh, and afterwards by Microsoft.
The memory and file management are done by the operating system while applications are running – Multi-Tasking.
A mouse is used to point and click on icons instead of typing in a command.
Dialogue boxes, menus, icons, toolbars etc form the window on the computer screen.
HUMAN COMPUTER.ppt (Size: 260 KB / Downloads: 22)
INTRODUCTION
Human factors related to computer can roughly divided into topics related to hardware design & topics related to design of the software interface
Hardware should be designed to maximize task perfomance & minimize ergonomic problems or hazards
Software interface refers to the information provided by the computer and the control mechanisms for information inputting
Interface
A point where two objects meet.
A point where the human can tell the computer what to do.
A point where the computer displays the requested information.
Importance of HCI
Productivity
individual (e.g. installations, word processing)
organisational (changing job content, satisfaction, working environment, power and influence)
Safety (e.g. nuclear plants, flight control)
Disciplines, contributing to HCI
Computer science
Cognitive psychology
Social & organisational psychology
Ergonomics
Artificial intelligence
Linguistics
Philosophy, sociology, anhtropology
Principles of HCI design
Recognise diversity
Strive for consistency
Informative feedback
Error prevention and similar error handling
Reduce short term memory load
Computer Match
A good interface match would include as many senses as possible.
Computer input and output is basically seeing what we enter and what is displayed.
Sound can be added to some programs, either by giving instructions by voice, or listening to a commentary / music.
Touch can be in the form of using the mouse, a joystick, or a drawing tablet.
Virtual Reality
Virtual Reality is a computer interface.
The applications programs combine the interfaces already mentioned to give a simulated three dimensional world of sight, sound, touch and movement.
Interaction may be made through special equipment such as: spectacles, gloves, sound systems, and the computer and monitor.
As these types of interfaces develop and become more advanced (realistic) through high level programming, so the human use will become more common and so it will seem to be similar to communication with other humans.
Natural Language
Normal speech recognised by a computer is Natural Language Interface. Talk to a computer and it recognises what we want.
Natural means human-like, and the technology is leaning towards getting computers to behave in a more natural way.
Graphical User Interface (GUI)
Used on computers first by Apple Macintosh, and afterwards by Microsoft.
The memory and file management are done by the operating system while applications are running – Multi-Tasking.
A mouse is used to point and click on icons instead of typing in a command.
Dialogue boxes, menus, icons, toolbars etc form the window on the computer screen.