a competitive analysis of online water level visualization tools
DESCRIPTION
Paper read at CartCon 2014 on February 26th in Olomouc, Czech RepublicTRANSCRIPT
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A Competitive Analysis of Web-based Water Level Visualization Tools
CartoCon 201426 FebruaryOlomouc, Czech Republic
Robert E. Roth, Chloe Quinn, & David HartUniversity of Wisconsin‒Madison, United States of AmericaContact: [email protected] | @RobertERoth
This work is supported by NOAA Grant #NA13OAR4170213
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1. Introduction: NOAA Lake Level ViewerClimate Change Adaptation
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2. Background: NOAA Sea Level Rise Viewerhttp://csc.noaa.gov/digitalcoast/tools/slrviewer
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42. Background: NOAA Sea Level Rise Viewerhttp://csc.noaa.gov/digitalcoast/tools/slrviewer
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52. Background: NOAA Lake Level Viewer
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3. MethodUsability Engineering /User-Centered Design /Use & User Issues
6 after Roth (2011)
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3. Method
competitive analysis: a usability engineering method administered to critically compare a suite of similar applications according their relative merits
potentially appropriate when:
1. the design/development team knows little about the application domain
2. there are limited project resources for a user-based needs assessment
3. there are a large number of competing applications with similar functionality
4. there is a previous version of the visualization tool already in use
after Nielsen (1992), and others
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3. MethodSample of Visualization Tools
Freq. Layer
6 U.S. Federal Agencies
3 U.S. State Agencies
4 University Research Centers
6 Non-profit Agencies
3 Private Industry / Independent Consultant
3 Cross-agency Partnerships
25 Total
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3. MethodCoding Scheme
Theme Topic
1 Cartographic Representation
1a Representation of the Waterline/Flood Extent
1b Representation of Uncertainty
1c Representation of Context Information
2 Cartographic Interaction
2a Interaction Operator Functionality
2b Web Mapping Technology
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Theme Topic
1 Cartographic Representation
1a Representation of the Waterline/Flood Extent
1b Representation of Uncertainty
1c Representation of Context Information
2 Cartographic Interaction
2a Interaction Operator Functionality
2b Web Mapping Technology
103. MethodCoding Scheme
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4. Results: Representation of Waterline/Flood ExtentVisual Variable Framework
after Bertin (1967), others
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location/extent of flooding
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flood depth
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4. Results: Representation of Waterline/Flood ExtentNOAA Sea Level Rise Viewer
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flood-focused solution
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154. Results: Representation of Waterline/Flood ExtentNOAA Lake Level Viewer Mockup
flooded vs. exposed
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Type Definition
Accuracy/Error the correctness or freedom from mistake of a measurement or estimate
Precision/Resolution
the exactness or degree of refinement of a measurement or estimate
Trustworthiness
a catch-all category for additional considerations regarding the dependability or confidence the user has in the information
currency the time span from occurrence through information collection/processing to use
completeness the extent to which information is comprehensive
consistency the extent to which information components agree
credibility the reliability of the information source
subjectivity the extent to which human interpretation or judgment is involved in information construction
interrelatedness the source independence from other information
lineage the conduit through which information has passed
4. Results: Representation of UncertaintyTaxonomy of Geospatial Information Uncertainties
after MacEachren, Robinson, et al. (2005)
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confidence
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completeness
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194. Results: Representation of UncertaintyNOAA Sea Level Rise Viewer
communicating multiple
uncertainties
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4. Results: Interaction Operator FunctionalityInteraction Primitives
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after Roth (2012; 2013), and others
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‘slippy’ map operators
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filter vs. search
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missed opportunitie
s
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1. The competitive analysis method proved useful for identifying best practices in web-based water level visualization tools, supplementing a user-based needs assessment study.
2. The competitive analysis method suggested possible opportunities for the NOAA Lake Level Viewer, enriching the functional requirements of the tool.
3. The competitive analysis method revealed potential gaps between theory and practice, problematizing suboptimal solutions and stimulating discussion about innovation.
5. Conclusions/Take-home PointsUsing the Competitive Analysis Method
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A Competitive Analysis of Web-based Water Level Visualization Tools
CartoCon 201426 FebruaryOlomouc, Czech Republic
Robert E. Roth, Chloe Quinn, & David HartUniversity of Wisconsin‒Madison, United States of AmericaContact: [email protected] | @RobertERoth
This work is supported by NOAA Grant #NA13OAR4170213