Visualization tools for Open Government Data
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Transcript of Visualization tools for Open Government Data
Visualization tools for Open Government Data
Alvaro Graves and James Hendler@alvarograves - @jahendler
[email protected] - [email protected] World ConstellationRensselaer Polytechnic Institute
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Saturday, June 22, 13
Agenda
• Challenges for Open Government Data
• Identifying stakeholders
• Soluition developed
• Conclusions
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Saturday, June 22, 13
Challenges for Open Government Data
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Saturday, June 22, 13
Open Data is everywhere!
• Over 1.000.000 datasets from national and local governments
• Lots of information about education, health, budgets, transportation, etc.
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Saturday, June 22, 13
Available ≠ Usable
• Although data can be accessed by many people, few can use them
• For many tasks, data manipulation requires knowledge in programming, statistics, etc.
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Saturday, June 22, 13
Challenge
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• What is needed for non-technical users to consume and explore Open Government Data?
• How can we empower domain experts that lack experience with Data?
Idea:Use of visualizations can
make easier for people to consume data
Saturday, June 22, 13
Why Visualizations?
• Visual inspection of data is helpful
• It is easy to share and consume for non data experts
• Can help to detect trends and outliers
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Anscombe’s quartet
“Attractions in Berlin”
Saturday, June 22, 13
Identifyingstakeholders
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Saturday, June 22, 13
Usage survey
• Asked information about what type of data and how they use it
• Survey via social media
• Do you use visualizations?
• How important are certain features of visualizations?
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Saturday, June 22, 13
Results
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Saturday, June 22, 13
Results
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Saturday, June 22, 13
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Results
Saturday, June 22, 13
Results
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Saturday, June 22, 13
Interviews
• We know there is a need, but who are the stakeholders of Open Government Data?
• 12 interviews with journalists, sociologists, engineers, etc.
• Based on these interviews, we created a series of Personas which represent different groups of people
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Saturday, June 22, 13
Five profiles
• Government data provider
• Government data consumer
• Researcher/Journalist
• Civil programmer
• Citizen
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Focus on the first three.
Saturday, June 22, 13
Problem grouping
• Exploration
• Provenance and metadata questions
•Creation
• How to create a visualization?
•Repurposing
• How to reuse someone else’s visualization16
We grouped the problems described during the interviews based on several criteria
Saturday, June 22, 13
Solution developed
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Saturday, June 22, 13
Back to the first question....• How can we empower citizens that are experts in certain
areas but lack experience with data?
• Tools that:
• Facilitate creation of visualizations
• Provide better exploratory mechanisms
• Ease sharing and viralization
• Allow repurposing of visualizations
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Saturday, June 22, 13
Facilitate creation of visualizations
• I want a tool where I can create a visualization in, say, no more than 6 steps
• Need some rapid prototyping techniques so user can obtain immediate feedback
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Saturday, June 22, 13
Better exploratory mechanisms
• Visualization by itself is not enough!
• Provide ways to understand how the visualizations was processed
• Provide mechanism to obtain the URL of the data used, when it was downloaded, etc.
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Saturday, June 22, 13
Ease sharing and viralization
• Facilitate communication between Data Providers and Data Consumers
• Visualizations should be easy to share via the media people use more often
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Saturday, June 22, 13
Allow repurpose of visualizations
• Do not force users to start from scratch!
• Critical for Government Data Consumers
• Useful for exploring different approaches to visualizations
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Saturday, June 22, 13
Prototype• Facilitates the creation
of visualizations based on OGD
• Records and exposes provenance automatically
• Permits sharing and repurposing of visualizations
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Saturday, June 22, 13
Conclusions
• We need better tools for OGD
• Visualizations are key in understanding OGD without special training
• By identifying the needs and limitations of stakeholders, we can build such tools
[email protected] @alvarogravesSaturday, June 22, 13