All these approaches follow the ISO standard Human-centred design for interactive systems (ISO 9241-210, 2010).
The ISO standard describes 6 key principles that will ensure a design is user centred:
- The design is based upon an explicit understanding of users, tasks and environments.
- Users are involved throughout design and development.
- The design is driven and refined by user-centred evaluation.
- The process is iterative.
- The design addresses the whole user experience.
- The design team includes multidisciplinary skills and perspectives.
Taken from: Interaction Design: Beyond Human-Computer Interaction
PREECE, J., ROGERS, Y. & SHARP, H. (2002) Interaction Design: Beyond Human-Computer Interaction. John Wiley & Sons, Inc
“What happens when people are learning and using a system is that they develop knowledge of how to use the system, and, to a lesser extent how the system works. These two kinds of knowledge are often referred to as user’s mental model. (…) The more someone learns about a system and how it functions, the more their mental model develops. (…) Within cognitive psychology, mental modelshave been postulated as internal constructions of some aspect of the external world that are manipulated enabling predictions and inferences to be made. (Craik, 1943). This process is thought to involve the “fleshing out” and the “running” of a mental model (Johnson-Laird, 1983). This can involve both unconscious and conscious mental processes, where images and analogies are activated.” (pp92-93)
Cognition has been described in SIX KINDS OF PROCESSES:
- Attention – selecting things to concentrate on
- Perception / Recognition – how information is acquired from the environment via sense organs and translated into experiences (vision is the most dominant)
- Memory – recalling various knowledge. We filter what knowledge to process / memorize. (most researched area)
- Learning – how to do something (like learning to use a program)
- Reading / Speaking / Writing – using language
- Problem Solving / Planning / Reasoning / Decision Making – involves reflective cognition
Found this statistic here: http://www.socialbakers.com/facebook-statistics/united-kingdom
In January 2013 Facebook has accumulated 1.06 billion monthly active users and 680 million mobile users
Click on Facebook app on home screen
Think of something to say
Type status, curser is automatically in the area for writing a status
Scroll down to share button and click
Wait for it to process
Flaws of updating a status
Can be time consuming
May not be appropriate time to do it e.g., work, driving etc
Hard to think of something to say
Issues with Facebook pages –
Notifications – notifications aren’t even real time (15-20mins after it happens on facebook)
Noises on chat
Join to a group for info but just get spammed
A lot of stuff going on down the sides (recommended pages and sponsors etc)