Elements Of Web Design


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Lecture 1 for 2008/09 Web Design Principles class.

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Elements Of Web Design

  1. 1. The elements of web design
  2. 2. Duality • Technology • Semester 1 • Design • Semester 2
  3. 3. Design
  4. 4. A basic duality: The Web was originally conceived as a hypertextual information space; 30 March 2000 but the development of increasingly sophisticated front- and back-end technologies has fostered its use as a remote software interface. This dual nature has led to much confusion, as user experience practitioners have attempted to adapt their terminology to cases beyond the scope of its original application. The goal of this document is to define some of these terms within their appropriate contexts, and to clarify the underlying relationships among these various elements. Web as software interface Concrete Completion Web as hypertext system Visual Design: visual treatment of text, Visual Design: graphic treatment of interface elements (the quot;lookquot; in quot;look-and-feelquot;) Visual Design graphic page elements and navigational components Interface Design: as in traditional HCI: Navigation Design: design of interface design of interface elements to facilitate elements to facilitate the user's movement user interaction with functionality Interface Design Navigation Design through the information architecture Information Design: in the Tuftean sense: designing the presentation of information Information Design Information Design: in the Tuftean sense: designing the presentation of information to facilitate understanding to facilitate understanding Interaction Design: development of Interaction Information Information Architecture: structural design time application flows to facilitate user tasks, defining how the user interacts with Design Architecture of the information space to facilitate intuitive access to content site functionality Functional Specifications: quot;feature setquot;: detailed descriptions of functionality the site Functional Content Content Requirements: definition of content elements required in the site must include in order to meet user needs Specifications Requirements in order to meet user needs User Needs: externally derived goals User Needs: externally derived goals for the site; identified through user research, ethno/techno/psychographics, etc. User Needs for the site; identified through user research, ethno/techno/psychographics, etc. Site Objectives: business, creative, or other internally derived goals for the site Site Objectives Site Objectives: business, creative, or other internally derived goals for the site task-oriented Abstract Conception information-oriented This picture is incomplete: The model outlined here does not account for secondary considerations (such as those arising during technical or content development) that may influence decisions during user experience development. Also, this model does not describe a development process, nor does it define roles within a user experience development team. Rather, it seeks to define the key considerations that go into the development of user experience on the Web today. © 2000 Jesse James Garrett http://www.jjg.net/ia/ JJG - elements of web design
  5. 5. JJG - elements of web design
  6. 6. Web as hypertext • Information oriented
  7. 7. Web as software • Task oriented
  8. 8. The surface - visual design • Colour • Typography • Visual elements • Branding ➡ Emotion
  9. 9. Skeleton - layout • Interface design • Navigation design • Information design ➡ Readability ➡ Understandability
  10. 10. Structure • Information Architecture • Interaction Design
  11. 11. Scope - requirements NCE • Functional specification • What will it do? • Content requirements • What information does it hold? in which the various features and Just what those features and func-
  12. 12. Just what those features and func- Strategy of the site. Some sites that sell books s to save previously used addresses uestion of whether that feature—or • User needs te is a question of scope. • Who will be using it and why? • Site objectives • Who is creating it and why? ermined by the strategy of the site. nly what the people running the site
  13. 13. Exercise • Get into pairs • Look at exercise 1 on Blackboard
  14. 14. Technology
  15. 15. Technology • HTTP • Servers & Browsers • (X)HTML • CSS • Document Object Model • Javascript • AJAX
  16. 16. Standards • HTTP • (X)HTML • CSS • ECMAscript (javascript)
  17. 17. Servers & Browsers • Web Servers • Web Clients • Browsers, RSS readers, other sites • Proxies and Firewalls
  18. 18. HTML • HyperText Markup Language • Structurally describes content •
  19. 19. XML • Data exchange SGML • Description XML HTML • Dynamic RSS 2.0 XHTML formats
  20. 20. (X)HTML <ul id=quot;oParentquot;> <li>Node 1</li> <li id=quot;oNodequot;>Node 2</li> <ul> <li>Child 1</li> <li ID=quot;oChild2quot;>Child 2</li> <li>Child 3</li> </ul> <li>Node 3</li> </ul>
  21. 21. Document Object Model
  22. 22. Document Object Model • Use for Javascript • Use for CSS • DOM scripting is NOT DHTML
  23. 23. CSS • Cascading Style Sheets • Separate style from content • Cascade • Inherit
  24. 24. Standards based design • Using XHTML, CSS and javascript to deliver usable, accessible and beautiful sites • Open, and understandable to other designers and developers
  25. 25. Javascript
  26. 26. AJAX
  27. 27. Validation • HTML • http://validator.w3.org/ • CSS • http://jigsaw.w3.org/css-validator/ • Javascript • Tools > Console • FIREWALLS & PROXIES
  28. 28. View Source • View Source • View Source • View Source • View Source • View Source • View Source • View Source
  29. 29. Exercise • Get into pairs again • Look at exercise 2 on Blackboard
  30. 30. Exam question • Explain the differences between web sites as hypertext systems or as software applications. What are the key differences between designing for these two different kinds of sites?
  31. 31. Images JJ Garrett, Elements of Web Design Wikimedia, creative commons images ICHC for the image above.