This document discusses mobile data collection and visualization tools. It begins by outlining advantages of mobile data collection like time efficiency and richer data. Challenges like initial trainings and device provisioning are also covered. Popular free and open source tools for data collection are introduced, including Google Forms, Survey Monkey, Formhub and Open Data Kit (ODK). ODK is recommended due to its capabilities and because it is free for unlimited data sets. The components of ODK like Build, Collect and Aggregate are described. Steps for data cleaning and visualization are outlined. Finally, visualization tools like Tableau, R and Infogram are mentioned.

1. Mobile Data Collection and
Data Visualization tools
Myo Min Oo
Chalk & Slate
www.chalkandslate.co
info@chalkandslate.co
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2. Advantages of Mobile in data
collection
▹ Time efficient – skip the secondary data entry step
▹ Faster transmission
▹ Accuracy of Data (Less text errors)
▹ Richer data (Pictures, GPS, BarCode, Audio, Video, etc…)
▹ Easier to analyze
▹ almost ready to visualize
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3. Challenges for Mobile Data
Collection
▹Initial trainings for surveyors
▹Connection Problems
▹Provision of Mobile Devices
▹OS Version Compatibility
▹Resolution of System Problems
▹Font Compatibility (Especially Myanmar Fonts) Both front end and back
end
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4. Tools for Data Collection
▹Google Forms (200000 Cells Limit)
▹Survey Monkey (Only 100 records for free version, $299 for unlimited)
▹Formhub (Free)
▹Open Data Kit ( Free)
▹Kobo Tool box (Free)
▹Collect
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5. Why we used ODK?
▹It’s free no matter how large your data set is (Other free tools have limits)
▹The forms can be created using powerful form design tools like Formhub,
XLS2XForm, Vellum, or Kobo, or PurcForms
▹Data can be exported not only to (.xls) (.csv) files but also to files like
(.kml) or shape files
▹Can operate offline
▹Can record audio, video, geographic codes, barcodes,
▹It’s Open Source
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6. Components of ODK
▹Build - ODK Build enables users to generate forms using a drag-and-drop
▹Collect - ODK Collect smartphone application
▹Aggregate - ODK Aggregate provides a ready to deploy online repository to
store, view and export collected data.
▹Form Uploader - ODK Form Uploader easily upload a blank form and its
media files to ODK Aggregate.
▹Briefcase - ODK Briefcase is the best way to transfer data from Collect and
Aggregate.
▹Validate - ODK Validate ensures that you have a OpenRosa compliant form
-- one that will also work with all the ODK tools.
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7. ODK Build
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8. ODK Collect
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9. ODK Aggregate
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10. Data Cleaning

11. 11 Data Cleansing Tools …..
 Data Wrangler (http://vis.stanford.edu/wrangler/) (From Stanford
University)
 Open Refine (Google Refine)
(https://code.google.com/archive/p/google-refine/) (From Google)
 R Programming (https://www.r-project.org ) from R Core Team
 Tableau Public (https://public.tableau.com/s/ )
 Microsoft Excel from Microsoft

12. Data
Visualization
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13. Four Main Things
 Get the data
 Clean the data
 Draw out dimensions, correlation and
facts
 Visualize it
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14. 14 Get the data: 3 Types of Data
 Data that you have collected
 Other elses’ data that you want to highlight (Eg: Open
Data)
 Search Engine and Social Media Data

15. 15 Data Sources
• http://ckan.org/
• http://www.theguardian.com/data
• http://www.google.com/publicdata/
• http://data.worldbank.org/
• http://datahub.io/
• www.themimu.info/

16. 16
What does your data
say?
 Trends
 Correlations
 Geographics
 Facts and Figures

17. 17
Before handling the
infographics………..
 What message do u want to give to your audience?
 What kind of people are they?
 Align your context with your goals and audience
 Structure your story

18. Data Visualization Tools
▸ Tableau Public (https://public.tableau.com/s/ )
▸ R Programming (https://www.r-project.org )
▸ D3.js ( https://d3js.org/ )
▸ Infogram ( https://infogr.am/ )
▸ PikToChart ( http://piktochart.com/ )
▸ Info Active ( https://infoactive.co/ )
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19. Infogr.am
Pros
▹Able to upload data set or live data
▹Strong Chart Tool
▹Good Features in free trail
▹Templates are very easy to customize
Cons
▹ Doesn’t allow to download in free version
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20. PikToChart
Pros
▹Able to upload data set or live data
▹A lot of graphic contents
▹Tons of Good Features in free trail
▹Templates are very easy to customize
Cons
▹ Chart tool is not that strong
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21. Thank You
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myominoo@tutanota.de
mmorakhine22@gmail.com