Zusammenfassung der Ressource
User Interfaces
- Types
- Menu Driven
- Provide users with set of option to chose from
- No need to enter text
- No need to navigate around screen
- Uncluttered fashion
- Graphical User Interface
- Labelled icons, images and folders
- W.I.M.P.
- Pull down menus avoid clutter, shortcut keys
- Easy for people with little ICT skill
- Natural Language Interface
- Search Engines - tries to find and
match key words
- Ability to communicate in
same language as used
day to day
- Language can be
misinterpreted giving wrong
answers
- Voice recognition
technology
- Human Computer Interaction (HCI)
- Concerned with design, evaluation and
implementation of interactive computer
systems. If it is good it can improve
productivity but if poor it will reduce job
satisfaction
- Psychological
- Human Behaviour
- Variable and needs to allow for
users of all levels and changing
demands
- Social Psychology
- Influence a group will have on how
people feel. Can make system
popular or unpopular
- Stress
- Caused by badly laid out menus,
lack of consistency. Results of
serious mental & physical issues
- Ergonomic
- Other Workers
- Attitude of others
affects attitude
- Task Should Be Made Easier
- Good HCI should make job
easier and user feel better
- Screen Glare
- Headaches from UV glare
off VDU - causes
discomfort
- RSI
- Poor input device design
causes strain to joints
- Physical Factors
- Obvious Design
- Buttons and Icons obvious
- Familiarity
- Easy to use for first time
users. Icons relate to purpose.
- Hardware Config.
- Must be easy to use
- Features of HCI
- Menus
- Screen Design
- In users control
- Error Messages
- Availability of help
- User-Friendliness
- Easy to Learn
- Online help facility
- GUI
- Multiple Navigation Options
- Multi-Tasking
- Fast File Searching
- Resource Implications of
Sophisticated HCI's
- Processor - stretched to limit
so they can cope with
graphics
- IAS - Large
memory allows
many windows
without loss of
speed