1Spring 2005Specification and Analysis of Information Systems

Eran Toch1, Iris Reinhartz-Berger2, and Dov Dori1

1 Faculty of Industrial Engineering and Management, the Technion – Israel Institute of Technology

2 Department of Information Systems, University of Haifa

Automatically Generating andOptimizing User-Interfaces for

Dynamic Compositions

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Three things

1. Web Service Composition2. Liquid Interface Walkthrough3. Usability Optimization

3Spring 2005Specification and Analysis of Information Systems

<1> Web Service Composition

4Web Services Pool

Get the price of a book in my own currency

Agent

User

Barnes-&-Noble Price

Process

Book Finder Process

Currency Converter Process

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Economy OntologyPublication Ontology

Semantic Web ServicesOWL-S: Web Ontology Language for Services

Barnes-&-Noble Price

Process

input output

Publication Finder

Process

input

output

Book

Publicationsubclas

sPrice

Currency Converter Process

ISBN Author

Name PublisherAmount Currency

input output

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User Interface Architecture

Service CompositionUser Interface

Dynamic, ever changingStable, hand-coded

Driven by semantic precision

Driven by usability

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Existing Research

• Service visualization rendering:[Spillner-2007, Khushraj-2007]

• Adaptive user interfaces:[Krzysztof-2006, Gajos -2008]

9Spring 2005Specification and Analysis of Information Systems

<2> Liquid Interface

Walkthrough

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11

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13More

14Spring 2005Specification and Analysis of Information Systems

<3>Usability Optimization

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Usability

ISO 9241 usability definition

The effectiveness, efficiency, and satisfaction with which specified users can achieve specified goals in particular environments.

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Yahoo Design Patterns LibraryYahoo Design Patterns Libraryhttp://developer.yahoo.com/ypatterns/

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UIPatterns Patterns LibraryUIPatterns Patterns Libraryhttp://ui-patterns.com/

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Example: Flat and Narrow Tree

Source: "A Pattern Approach to Interaction Design" (PAID)by Jan Borchers

Valu

eNumber of sequential links

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A set of guidelines regarding the depth (number of content levels) and width (number of choices)

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( ) max ( )i

i iP

opt TaskModel w P TaskModel

optopt

P1

P2

Pn

NaïveTask Model

Optimized Task Model

...

Optimization

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Some Questions

• Is there an optimal solution?– Conflicts between patterns– Is the solution computable?

• What are the boundaries of mathematical model of usability?

• Can analyzing conflicts between patterns teach us something?

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http://www.technion.ac.il/erant

Thank You

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BookISBN

PublicationhasTitle, hasPublisher, hasYear

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Back

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References[ISO-1998] Iso 9241-11. ergonomic requirements for office work with visual

display terminals (vdts) part 11: Guidance on usability, 1998. [2] A. Ankolekar, M. Burstein, J. R. Hobbs, O. Lassila, D. L. Martin, S. A.

[OWL-S-2001] McIlraith, S. Narayanan, M. Paolucci, T. Payne, K. Sycara, and H. Zeng. Daml-s: Semantic markup for web services. In Proceedings of the International Semantic Web Workshop (SWWS), pages 411–430, July 13 2001.

[Gajos -2008] Gajos, K. and Everitt, K. and Tan, D. and Czerwinski, M. and Weld, D. "Predictability and Accuracy in Adaptive User Interfaces" Proceedings of the ACM Conference on Human Factors in Computing Systems (CHI 2008), Florence, Italy, April 2008.

[Khushraj-2007] Deepali Khushraj and Ora Lassila. Ontological approach to generating personalized user interfaces for web services. In International Semantic Web Conference, pages 916–927, 2005.

[Krzysztof-2006] Krzysztof Z. Gajos, Mary Czerwinski, Desney S. Tan and Daniel S. Weld. Exploring the Design Space For Adaptive Graphical User Interfaces. In Proceedings of AVI'06, Venice, Italy, 2006.

[Spillner-2007] Josef Spillner, Iris Braun, and Alexander Schill. Flexible human service interfaces. In ICEIS (5), pages 79–85, 2007.

[7] Eran Toch, Avigdor Gal, Iris Reinhartz-Berger, and Dov Dori. A semantic approach to approximate service retrieval. ACM Trans. Inter. Tech., 8(1):2, 2007.