using mobile data collection idp needs assessment survey in serbia using mobile data collection...
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IDP Needs Assessment Survey in Serbia
Using Mobile data collectionUsing Mobile data collection• Introduction• Practical implementation
Mobile data collection sytem
Data collection component
Prediction algorithmsPrediction algorithms
ReportingReporting
GISGIS
Data Collection
Data Collection
DataData
Centralusers
Information System
EpidefenderEpidefender
Introduction
Mobile data collection sytem
“Mobile data entry” vs “Paper forms”
• Time savings - eliminate the need for secondary data entry step
• Speed of transmission,
• Increased accuracy of data – no errors of omission
• Richer data (pictures, GPS)
• Built in business logic
Limits:
• Initial training,
• Provision of phones
• Possible provision of airtime,
• Management of data capturers
• Resolution of system problems
• Stolen or lost handheld computers/devices
Introduction
Mobile data collection sytem
Typical Functionalities
Typed form fields (Text, Date, integer, numeric …)
Field validation Field conditional visibility Data filtering Internationalized user
interfaces
Introduction
Mobile data collection sytem 5/9
First generation of mobile data collection sytem
Conversion of paper form into electronic form ->DATA COLLECTION and DATA ENTRY in a single phase
Data are stored as XML (example : “Open Data Kit”)
Limits of the 1st Generation:• No possibility to search• No possibility to update• No visualisation of what has been
collected• More a “data filling” system than a “data
entry” system
Introduction
Mobile data collection sytem
Portable information SystemPortable information System
The “2nd generation” mobile data collection application:
Data are stored in a local database (Example Epidefender) Offline/Online mode Bidirectionnal data synchronization Manual or automatic data synchronization Remote installation and update Create/Read/Update/Delete/Search forms User privileges management Alert sending Photo/Video/Sound acquisition Geographical coordinates acquisition Barcode acquisition/search Form/Wizard mode
Introduction
Mobile data collection sytem 7/9
Next step 1: Forms configuration
The desing of the form may have to be adapted
• Skip logic, • data validation process,• Prefilled fields,• Infobox
Practical implementation
Mobile data collection sytem 8/9
Next step 2: Infrastructure set up
Looking at prices and availibility, choosing the data transfer system :
• Use of 3G plus a server on the web• Use of Wifi plus a local server on a LAN
Looking at requirement, choosing the type of system :
• Simple data collection (1st Generation)• Portable information system (2nd
Generation)
Practical implementation
Mobile data collection sytem 9/9
Next step 3: training & equipment
• Confirm the number of surveyors
• Train/Test the knowledge of surveyor for Mobile OS
• Procure enough devices
• Plan for external battery
Practical implementation