Unit 9 - Navigation & Faceted Search.ppt - Navigation Dr....

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NavigationDr. Victor OndegoIS 674:Information Architecture for the Web
Elements of Information ArchitectureWhat constitutes the IA of a website?Organizing informationLabeling informationNavigating the organized informationUser-centered design of IA
Pathway PagesGinny Reddish refers to pages mostly consisting of navigation as“pathway pages” in Letting Go of the WordsHere it is even more important that web users do not read, butskim and scanPathway pages should be like a table of contents: give anoverview of the site and allow visitors to choose where to goquickly and easilyShort descriptions may help if link name is not enoughMore than three clicks are ok, if those are well designedBe aware that many people often choose the first option available(Remember from Steve Krug? We muddle through and satisfice)
NavigationFinding your way in a hypertext space is difficultand getting lost is a bad thingHow do you make sure your users do not getlost? Websites should answer these questions:Where am I? What is this?Where have I been?How do I get back?Where can I go?Websites answer these questions for users withvarious navigation systems
Where am I?Relative to the Web as a wholeAlways display logo or brandingUse consistent page layout and designUse consistent interaction methodsGood example:The Library of CongressRelative to the siteShow the structure of the site in global and localnavigationHighlight the section the user is in,BBCBreadcrumbs,Yahoo
Where have I been?BreadcrumbsBrowser Back buttonAre all of the pages you visited in the Backbutton?Very popular browsing tool, but wrong mentalmodelBrowser history better, but less frequentlyusedUse consistent visited link colors
Where can I go?Make the site structure visibleWell-designed information organization andnavigation will help:Users can guess what is under a headingAll pages can only go under one headingUse multiple navigation techniques:Structural links: global and local site structuresContextual links: more information about particularchunks of contentAssociative links: Links to similar content, suggestionsbased on interest
Types of Navigation SystemsEmbedded NavigationGlobal (site-wide)Local (subsite)Contextual (in-text)Supplemental NavigationSitemapsIndexesGuides
Global NavigationReflects the information organizationThree main types:Linear (each item in one location, sequential access):Best for Web applicationsHierarchical (each item in one location, direct access)If well designed, easy to use, good for novice, infrequentusersFaceted (each item in multiple locations)Very powerful, good for expert usersGood for indiscriminate driftnetting and undefined informationneeds
The Site Structure…Should be developed consciouslyShould be clearly reflected through theglobal navigationShould reflect users’ needsShould not reflect the organizationalstructure

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Term
Fall
Professor
LUTTERS
Tags
Facet, Automotive navigation system, Faceted classification, Satellite navigation system, Faceted search

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