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Random Thoughts on Web Usability and the W3C: A View from a Practioner’s Perspective. W3C/NIST Workshop on Web Usability November 4, 2002. Thomas S. Tullis, Ph.D. Senior Vice President, Human Interface Design Fidelity Investments tom.tullis@fidelity.com. Outline.
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Random Thoughts on Web Usability and the W3C:A View from a Practioner’s Perspective W3C/NIST Workshop on Web Usability November 4, 2002 Thomas S. Tullis, Ph.D. Senior Vice President, Human Interface Design Fidelity Investments tom.tullis@fidelity.com
Outline • Very quick background on Fidelity and our web usability work. • Overview of four areas I think a W3C Usability Working Group could play a significant role: • Usability of the W3C site itself • Usability of the W3C guidelines documents • Possible Usability Guideline document • Helping set a Practical Usability Research Agenda
Fidelity Investments • The largest mutual fund company in the U.S. and one of the world’s largest providers of financial services. Managed assets of $732.4 billion. • Fidelity offers investment management, retirement planning, brokerage, human resources and benefits outsourcing services to 18 million individuals and institutions. • Some stats as of September 2002: • 4.572 million online accounts • $266 billion assets held in online accounts • 70,955 online trades (buy or sell) daily, on the average
For most individual investors For retirement plan investors For investment advisors and their clients Fidelity on the Web • Some of our web sites and applications: Active Trader ProSM And hundreds of internal apps and web sites
Usability at Fidelity • Fidelity’s senior management recognized the importance of usability over 9 years ago and funded the creation of: • The Human Interface Design (HID) department • A part of the Fidelity Center for Applied Technology. • Fidelity’s Usability Lab • Now in its third incarnation • In downtown Boston • Includes two permanent Labs and one portable
Our Web Usability Testing • Conducted over 150 usability tests of Web sites or applications in the past 3 years. • Typical usability test: • About 6-8 representative users are brought in to the Lab, individually. • They perform a set of realistic tasks using the site. • We monitor where they get confused, make mistakes, etc, as well as task time and success.
Usability of the W3C Site • Maybe it’s just me, but whenever I go to the W3C site, I have a very hard time finding what I’m looking for. • Even when I know it’s there! • What about people who aren’t sure if something is there? • Try doing a search on “usability” on the W3C site!
Usability of the W3C Site • Possible actions that a W3C Usability Working Group could facilitate: • Do some user analyses– What are people who come to the W3C site looking for? • Has a serious information architecture study been done for the site? • Conduct a card-sorting study • Do some usability testing– Perhaps start with some baseline testing. • Study Search logs to see what people are looking for. • And “hand-tune” search results to make the pages most appropriate for a search come to the top.
Usability of the W3C Documents • The first screen-full when you see a document: Is this the most important information, from the user’s perspective?
Usability of the W3C Documents • Most of the W3C documents themselves follow a relatively standard format. • Has anyone ever done any user testing to verify if it’s a good format/approach? • Need standard techniques for presentation/navigation (e.g., TOC, glossary, related documents, etc). • It’s relatively easy to generate nicely formatted PDFs from HTML; what if users want that? • There’s probably a reason that people like the Nielsen Norman Group sell PDFs of their reports rather than providing HTML versions.
A Usability Guidelines Document? • There are quite a few Web usability guidelines, style guides, etc, out there already, e.g.: • NCI’s Research-based Guidelines • IBM’s Ease of Use Guidelines • Yale’s Web Style Guide • And the various books • What could the W3C add in this arena? • A voice of authority and reason • Capitalize on the NCI effort • Empirically-based, not just someone’s opinion • Tie-in with HTML implementation issues • Information on how to measure Web usability?
Web Usability Research Agenda • The W3C could be a driving force behind developing a practical Web usability research agenda. • There are huge numbers of Web usability issues that we just don’t know the answers to today, e.g.: • Are frames evil or not? In what cases? • What approaches to navigation work best in what situations? • And a host of others
Web Usability Research Agenda • An example of some great practical Web usability research: • Wichita State’s Software Usability Research Lab • And some industry groups (like mine) are doing practical Web usability research. • But we need more. • Perhaps a research agenda would help encourage others. • Maybe include pointers to ongoing research in various areas?