HCI (Human-Computer Interaction) is "The study of how humans interact with computers, and how to design computer systems that are easy, quick and productive for humans to use. " (Dictionary.com, n.d)
The Design Principles for HCI is:
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The Design Principles for HCI is:
- Early focus on user(s) and task(s): Establish how many users are needed to perform the task(s) and determine who the appropriate users should be; someone who has never used the interface, and will not use the interface in the future, is most likely not a valid user. In addition, define the task(s) the users will be performing and how often the task(s) need to be performed.
- Empirical measurement: Test the interface early on with real users who come in contact with the interface on a daily basis. Keep in mind that results may vary with the performance level of the user and may not be an accurate depiction of the typical human-computer interaction. Establish quantitative usability specifics such as: the number of users performing the task(s), the time to complete the task(s), and the number of errors made during the task(s).
- Iterative design: After determining the users, tasks, and empirical measurements to include, perform the following iterative design steps:
- Design the user interface
- Test
- Analyze results
- Repeat
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