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Exam Overview Revision - Coggle Diagram
Exam Overview Revision
Components of a flow chart are:
decision, line. input/output, start/end and process
Mind maps:
Advantages of a mind map are
: you can add information whenever you want, can help focus on the ideas and links between them
Disadvantages of a mind map are
: it can be difficult for others to understand, The correct type of mind map has to be used
Components of a mind map are:
branches, nodes, sub-nodes, colour, images and key words
Types of mind maps:
Library mind map, tunnel timeline mind map and presentation mind map
Hardware:
Display Configuration
: touch screen, LCD- Liquid crystal display, OLED- Organic light emitting diode, LED- light emitting diode
Resources
: Memory, Processing power, Size and Display
Software Consideration:
Operating system:
allows the hardware to communicate with the different applications that the device has.
Examples include:
Windows, Mac OS/iOS, Android, Chrome, Ubuntu, Linux and Unix
Designing an HCI
: Excel and Access
HCI on mobile devices:
impacts the size
impacts the memory
impacts type of display
impacts processing power
Disadvantages on entrants using touch HCI:
If you have a medical condition like Arthritis in your fingers it can be difficult to use. If your disabled, for example, you don't have any fingers or your paralysed you wouldn't be able to use touch screen.
User interaction methods:
Touch and Gesture.
By using this as a user interaction method, the HCI can be less cluttered as fewer buttons will be needed.
Key board and mouse.
Many people are familiar with the layout of a standard keyboard which always has the same basic layout. Using a mouse to select the option required can be precise, meaning the chance of selecting the incorrect option is reduced.
Voice.
Activating voice interaction means that all actions with the HCI can be completed by just speaking. This can benefit those who need assistive technology due to a disability.
Data:
Data-
Raw facts and figures before they have been processed.
Data Type:
Alphanumeric, Boolean, Date, Numeric, Currency, Decimal, Integer, Percentage, Real and Text.
Advantages of Online Surveys
Large numbers of people can be asked to fill in the same survey. Cheaper than interviews for larger numbers of people.
Disadvantages of Online Surveys
People need the technology and stable connection to be able to complete it. A badly designed question may not get the data required in the right format.
Data Collection Methods
Email, interviews, online questionnaires and surveys, books and magazines, government statistics, websites
Physical Storage Devices.
Internal-
Primary Hard Drive, Network Drive.
External-
Portable USB Flash drive, Portable solid- state drive, Network attached storage device, Portable wireless charger.
Cloud Storage
Cloud services are accessed through a web browser.
Testing Types
Extreme, Valid, Invalid, Technical, User