Techniques for Developing Usable VREs
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UCD School of Information and Library Studies Techniques for Developing Usable VREs Judith Wusteman
description
Techniques for Developing Usable VREs. Judith Wusteman. Overview. SFI Ojax++ VRE Maximising the Usability of Web 2.0 VREs Agile software development methods Usability Testing. A collaboration between the UCD Schools of Library & Information Studies And Computer Science & Informatics - PowerPoint PPT Presentation
Transcript of Techniques for Developing Usable VREs
UCD School of
Information and Library Studies
Techniques for Developing Usable VREs
Judith Wusteman
Overview
• SFI Ojax++ VRE
• Maximising the Usability of Web 2.0 VREs
– Agile software development methods
– Usability Testing
A collaboration between the UCD Schools of
Library & Information Studies
And
Computer Science & Informatics
Applying concepts from
the Social Web and recommender technology
to the VRE
September ‘07 – November ‘10
http://www.ucd.ie/ojax
OAuth
OJAX: A prototype user interface to a federated search service
Rich Internet Applications
• Atom
• Ajax
(Asynchronous JavaScript and XML)
• ARIA
(Accessible Rich Internet Applications)
Agile s/w development
OSS development
Web 2.0
User Centred Design
Iterative
OpenessUser Control
User CenteredOJAX
Manifesto for Agile Software Development
• Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it.
Through this work we have come to value:
Individuals and interactions over processes and tools Working software over comprehensive documentation
Customer collaboration over contract negotiation Responding to change over following a plan
That is, while there is value in the items on the right, we value the items on the left more.
Agile software development
• Iterations of 2-4 weeks
• Only as much documentation as necessary
• Early coding
• Working version - stable, testable software
• Close collaboration and rapid feedback between developers, users and customers
Agile s/w dev
OSS dev
Web 2.0
User Centred Design
Iterative
OpennessUser Control
User CentredCommunity
OJAX
Usability Testing / User Testing
• Representative users performing representative tasks in the presence of a tester
• From Usability Labs…
• ….to usability testing
on 10 cents a day
Usability testing in OJAX
• Testing similar systems by a proxy user
• Iterative proxy testing
• Representative users testing
• Pre- and post-evaluation questionnaires
• “Get it” testing
• “Key task” testing
[Krug]
Results of Usability testing
• “Kayak” issues (Krug)
• Learning a new metaphor
• Unintuitive features
Agile s/w dev
OSS dev
Web 2.0
User Centred Design
Iterative
OpennessUser Control
User CentredVRE
