CIS 1250 Lecture Notes - Lecture 23: Golden Ratio, Unix Philosophy

• School: University of Guelph
• Department: Computing and Information Science
• Course: CIS 1250
• Professor: Luiza Antonie

Document Summary

Garbage in garbage out: the quality of the system"s output is dependent on the quality of the input. Incorrect inputs without proper error checking will causes errors. Good continuation: elements in a straight line or smooth curve are perceived as a group people have a tendency to fill in gaps between elements; something to consider in graphic design and logo design. Dr. luiza antonie: the time it takes to make a decision increases as the number of choices increases. Hierarchy: hierarchical organisation is the simplest structure for understanding complexity, used in menu structures, file system organisation, etc, less specific -> more specific as you traverse down the tree. Iconic (symbolic) representation: the use of images to improve recognition and recall of sign and controls. Dr. luiza antonie: when focused on a task, the ability to not notice something obvious, e. g. why you should never text and drive. Interference effects: when competing information slows mental processing.