Discuss the four (4) Human Computer Interface (HCI) highlighting their merits and demerits.
Answers
The concept of Interaction Styles refers to all the ways the user can communicate or otherwise interact with the computer system. The concept belongs in the realm of HCI or at least have its roots in the computer medium, usually in the form of a workstation or a desktop computer. These concepts do however retain some of their descriptive powers outside the computer medium. For example, you can talk about menu selection (defined below) in mobile phones.
Advantages and disadvantages of Command Language
Some of the following points are adapted from Shneiderman (1997) and Preece et al. (1994)
Advantages
Flexible.
Appeals to expert users.
Supports creation of user-defined "scripts" or macros.
Is suitable for interacting with networked computers even with low bandwidth.
Disadvantages
Retention of commands is generally very poor.
Learnability of commands is very poor.
Error rates are high.
Error messages and assistance are hard to provide because of the diversity of possibilities plus the complexity of mapping from tasks to interface concepts and syntax.
Not suitable for non-expert users.
Answer:
no idea
Explanation: