Instructions — Conceptual model

Instructions form a simple conceptual model, wherein the user issues commmands which are carried out by a system. For example, a user might request that a computer save or open a file.

Commands might also be issued in multiple ways, for example through a GUI menu, or through a command line, etc...

The main benefit of this model is that it supports quick and efficient interaction, and can be particularly good for repetitive actions carried out on multiple objects.

Pros:

• All commands are provided.
• Straightforward way of selecting options.
• Quick and efficient.
• Good for repetitive tasks.

Cons:

• Limited number of commands.
• No flexibility.
• Need to learn the instructions.