T 4 Alrashidi

Effective Interface Design By Avoiding Cognitive Overload – Addressing issues with Visual Design Abdullah ALRASHIDI EDGE903 - 2011

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• Graphical User Interface (GUI) – is the user visual interface that allow users to interacting with a computer using items such as windows and icons (Norman 2004). • Design considerations principles: organize, economize and communicate. It should take into account human factors and cognitive ability.

• Organize – consistency, screen layout, relationships and navigability are important concepts • Consistency – match with the real world – what users are used to. • Screen layout – the general 7+/-2 rule is essential to considered to avoid information overload. Designing visual representation can designed according to CLT to avoid overload • CLT to properly design learning materials  avoid cognitive overload

If Attended to LONG-TERM MEMORY ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],Stimuli in the Environment SENSORY MEMORY Elaborative Rehearsal Sweller, et al.,1998 Cognitive Architecture & Instructional Design WORKING MEMORY If toattended

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CLT: 3 types of CL ,[object Object],[object Object],[object Object],Intrinsic Load (Irreducible by instructional design) Extraneous Load (Reducible by Instructional Design) Germane Load (Increasable by instructional design) Free Capacity Fig 2 A visual representation of the assumptions underlying cognitive load theory (Plass, Moreno & Brünken 2010; p18) Total Working Memory Capacity Total Cognitive Load

CLT Instructional techniques The principal of CLT is applied to develop training material that efficiently make use of the available cognitive processing capacity  Instructional design Techniques. ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Cognitive load Theory ,[object Object],[object Object],[object Object]

Instructions and suggestions for interface designers ,[object Object]

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T 4 Alrashidi

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