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Exploring and examining assessment data via a matrix visualisation

Graham, Martin; Kennedy, Jessie

Authors

Martin Graham



Contributors

Maria Francesca Costabile
Editor

Abstract

OPAL (Online PArtner Lens) is an application designed to match project requirements with suitable teams and individuals, and as part of its matching process features an evaluation mechanism designed to elicit measures of trust between potential partners. We describe a matrix-style visualisation that displays these hierarchically structured assessments between sets of OPAL users to allow them to select potential partners. The main feature of the matrix visualisation is the ability for users to assess the context of a specific assessment as the visualisation not only reveals simple related statistics for the two users concerned, but also overlays summaries of related assessor and candidate evaluations as compact and ordered ‘value bars’ when the user examines information in the matrix. This enables the user to better decide whether a given assessment is in line with what would be expected from an assessor’s and candidate’s history, or whether it indicates a specifically localised interplay between the two users. Other features include a simple focus+context effect that can reveal the tree-like structure and details of assessments, and filtering assessments by their position in the matrix or by particular assessment attributes.

Citation

Graham, M., & Kennedy, J. (2004, May). Exploring and examining assessment data via a matrix visualisation. Presented at Proceedings of the working conference on Advanced visual interfaces - AVI '04, Gallipoli, Italy

Presentation Conference Type Conference Paper (published)
Conference Name Proceedings of the working conference on Advanced visual interfaces - AVI '04
Start Date May 25, 2004
End Date May 28, 2004
Publication Date 2004
Deposit Date Oct 28, 2009
Publisher Association for Computing Machinery (ACM)
Peer Reviewed Peer Reviewed
Pages 158-162
Book Title Advanced Visual Interfaces (AVI) 2004
ISBN 1581138679
DOI https://doi.org/10.1145/989863.989886
Keywords Computer programming; Online PArtner Lens (OPAL); Matrix visualisation; Project management; Personnel selection; Project requirements; Matching; Graphs; Value bars; Filters; Program applicability;
Public URL http://researchrepository.napier.ac.uk/id/eprint/3021






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