ISOM221+Lecture+19+-+System+Design+II

ISOM221+Lecture+19+-+System+Design+II - Agenda ISOM221...

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ISOM221 Information Systems Analysis and Design Lecture 19: System Design II (User Interface Design) 1 Agenda Understand several fundamental user interface (UI) design principles Understand the process of UI design Understand commonly used principles and techniques for designing navigation, input, and output Overview Interface Design formalizes the interaction of the system with external entities System Interfaces are machine-machine and are ealt with as part of systems integration dealt with as part of systems integration User Interfaces are human-computer and are the focus of this lecture Principles of User Interface Design Layout Content Awareness Aesthetics User Experience Consistency Minimal User Effort
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Layout The first element of design A basic layout consists of navigation, report and form, and status areas reas should have a natural intuitive flow Areas should have a natural intuitive flow Users from western nations tend to read from left to right and top to bottom Users from other regions may have different flows Multiple layout areas are often used (e.g., Web) General Layout Navigation Area Reports & Status Area Forms Area fig_1 Layout with Multiple Navigation Areas 11_02 Content Awareness Refers to the ability of an interface to make users aware of the information it contains with minimum efforts Intuitively answers the users’ questions: here am I? Where am I? What am I supposed to be doing here? Content awareness applies to sub-areas within a form or window Related form fields (e.g. address information) are grouped together Related report information (e.g. records) are grouped together
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Form Content Awareness Name Area Phone Numbers Area Report Content Awareness First Record rea Area Second Record Area Aesthetics Interfaces should be functional, inviting to use, and pleasing to the eye In most cases, less is more (minimalist design) White space is important Acceptable information density is proportional to the user’s expertise Novice users prefer less than 50% density Expert users prefer more than 50% density Bad Aesthetics
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User Experience Ease of learning How quickly users can learn new systems Significant issue for inexperienced users Relevant to systems with a large user population Ease of use How quickly users can use the system once they have learned how to use it Significant issue for expert users Most important in specialized systems
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ISOM221+Lecture+19+-+System+Design+II - Agenda ISOM221...

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