Principles of HCI.pptx

Principle of Human Computer Interaction PRESENTED BY: MARINO B. BARTOLOME JR The HCI Challenge HCI is about Understanding the users Understanding users tasks Understanding the surrounding environment GUI requirements gathering and analysis Design prototype...

Principle of Human Computer Interaction PRESENTED BY: MARINO B. BARTOLOME JR The HCI Challenge HCI is about Understanding the users Understanding users tasks Understanding the surrounding environment GUI requirements gathering and analysis Design prototype Evaluate the system The goals of HCI The goal of HCI “is to develop or improve the safety, utility, effectiveness, efficiency and usability of system that include computers.” (Interacting with computers, 1989, p3) What is Usability? A usable system is: easy to use easy to learn easy to remember how to use effective to use efficient to use safe to use enjoyable to use A Bad user-interface can: 1. be annoying, embarrassing, frustrating, and even deadly. 2. Increase mistakes in data entry and system operation. 3. Makes functions become completely inaccessible. 4. System failure because of user rejection. Why HCI is Important in the Context of WWW? It is not Simple to Make Good User Interfaces Basic misconceptions: 1. If I (the developer) can use it, everyone can use it 2. If our non-technical staff can use it, everyone can 3. Good user interfaces are applied common sense 4. A system is usable if all style guidelines are met Examples of good and bad design The End