pdas handheld devices internet for census data collection
Download
Skip this Video
Download Presentation
PDAs-Handheld Devices/Internet for Census Data Collection

Loading in 2 Seconds...

play fullscreen
1 / 25

PDAs-Handheld Devices/Internet for Census Data Collection - PowerPoint PPT Presentation


  • 169 Views
  • Uploaded on

PDAs-Handheld Devices/Internet for Census Data Collection. Overview of the Presentation. Challenges with Paper-based Data Collection and Processing Moving to PDA/Handheld-based Data Collection and Processing PDAs: Key Features/Other Optional Features Internet-based Census Data Collection

loader
I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
capcha
Download Presentation

PowerPoint Slideshow about ' PDAs-Handheld Devices/Internet for Census Data Collection' - ferris


An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.


- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
pdas handheld devices internet for census data collection

PDAs-Handheld Devices/Internet for Census Data Collection

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

overview of the presentation
Overview of the Presentation
  • Challenges with Paper-based Data Collection and Processing
  • Moving to PDA/Handheld-based Data Collection and Processing
  • PDAs: Key Features/Other Optional Features
  • Internet-based Census Data Collection
  • Benefits/Issues
  • Recommendations - Conclusions

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

paper based data collection
Paper-based Data Collection

Paper-and-Pencil Interviewing

Handheld devices

Paper-based

Data Collection

Self-administrated Questionnaire

Internet

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

challenges with paper based data collection processing
Challenges with Paper-based Data Collection/ Processing
  • Slow and time-consuming
  • Re-keying information is inefficient and increases chance of error
  • Paper-based forms increase chance of error
  • Submitting multiple forms for a single process
  • Cannot capture value-added data – GIS
  • Data Integrity and Authenticity

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

pda and handheld computer
PDA and Handheld Computer
  • Personal digital assistant:
    • “A personal digital assistant (PDA) is a handheld computer, also known as small or palmtop computers.” (Wikipedia)
  • PDA vs Handheld computer:
    • Handheld computer offers more features than a PDA (larger than a PDA; smaller than a Laptop!)
    • Used interchangeably

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

paper based approach vs pda s approach
Paper-based Approach vs PDA’s Approach

Data Collection

Data Entry

Data Coding/Editing

Paper-based Approach

Manual

  • Key entry/computer-assisted
  • OMR/OCR/ICR

Manual

Computer-assisted

Data Coding/Editing

(partial)

Data Collection/Entry/Coding/Editing

Automated/built-in

Manual

Computer-assisted

PDA ‘s Approach

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

pda way of functioning
PDA: Way of Functioning
  • Simultaneously data entering and data coding
  • Possibility to enter data in two ways: with selection from the offered list of answers (or from classification in hierarchical order ) or with typing a text
  • The next question could not be answered if the current one is not answered
  • To have report of enumerated units (cumulative) in each moment
  • To measure the time needed for enumeration of each separate enumeration unit

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

pdas key features
PDAs - Key Features
  • Works like a “Pocket Computer”
    • Processor, RAM, ROM, Operating System
    • Applications can we loaded on the device
    • Device has processing power
  • Increases Productivity “on the move”
    • Data can be collected in digital format in the field
    • Data can be directly uploaded into the server

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

slide9
Cont…
  • Connectivity Options
    • Data connectivity using GPRS /CDMA
    • Data Connectivity options using Wi-Fi (Wireless)
    • Data can be transferred by “syncing” with Computer: wired connectivity via USB cable (PDAs connect to computer)
  • Enhanced data storage
    • Increase storage capacity through add on SD cards
  • Optional features
    • Camera, Biometric, GPS, Add on Smart Card reader etc

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

two types of handheld devices
Two Types of Handheld devices:
  • Pen Based
    • Pocket PC’s
      • Stylus based input
      • Data transfer through “sync”
  • Converged
    • Pocket PC with Connectivity
      • Connected via GPRS / CDMA
      • Options of Camera, GPS

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

slide11

Using PDA with data sync option

Option 1

Sync and transfer data

Collect data in the field

Option 2

Using PDA inbuilt GPRS capability

Collect data in the field

Send data via Inbuilt GPRS

Option 3

Using PDA in connection with Bluetooth Phone / connected cable

Collect data in the field

Send data via phone

Three forms of data transfer(from HP)

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

selection criteria
Selection Criteria:
  • Data Input Method
    • Stylus, On device keyboard, Off Device Keyboard
  • Memory capacity
    • RAM:64-128 MB
    • ROM: Inbuilt ROM, Additional ROM via SD Card
  • Connectivity Options
    • Sync through computer, In-built GPRS/CDMA, Wi-Fi, Bluetooth
  • Ruggedness
  • Regional Language Support
    • Arabic, English plus additional languages
  • Other Options
    • GPS, Camera, etc.

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

other decision making criteria
Other Decision Making Criteria:
  • Real time data upload Vs Batch data upload
  • Recurring costs for data connectivity
  • Ease of data entry/Ease of holding device in one hand
  • Battery Life / Battery Charging Options

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

managing devices in the field some considerations
Managing devices in the field: Some Considerations
  • How do we manage the devices in the field?
  • Data security?
  • Device security?
  • Application version on device?
  • Troubleshooting on device?

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

measures for data protection
Measures for data protection
  • Ensure protection from:
    • Loosing of already entered records
    • Ex-post data correction in entered records
    • Unauthorized using of data
  • Measures:
    • Biometric Security
    • Security for Wireless and GPRS
    • Encrypting Data
    • Make it “solid” (rugged?)
    • Make it “ugly”!

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

optional features
Optional Features
  • The device can be enabled with GPS to:
    • geo-reference units visited (urban and rural)
    • track location of data entry
    • Positioning and guidance of the enumerator
  • With Cellular, camera and OS applications

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

pdas costs
PDAs Costs
  • Pocket PCs:
    • $300-$1200
  • Cost dependent on
    • User Interface
    • Upgrading
  • Economy of scale
  • Deployment issues

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

summary of key features
Summary of Key Features
  • Integrated field platforms with GPS, cellular, camera and OS applications
  • Real-time task management from office
  • Manage field time, expenses, etc.
  • Geographical and map processing
  • Data synchronization and management
  • Secure applications, procedures and protocols
  • Ability to encrypt data for secure transmission

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

self administrated questionnaire
Self-administrated Questionnaire

Paper-and-Pencil Interviewing

Handheld devices

Paper-based

Data Collection

Self-administrated Questionnaire

Internet

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

internet based census data collection ecensus
Internet-based Census Data Collection (eCensus)
  • Why?
    • Requested by the population (e.g. France)
    • E-Government Policy (e.g. Canada)
  • Some benefits
    • Accurate and timely data collection
    • Processing time reduced
    • Rapid availability of clean data for statistical analysis
    • Enhanced analytics
    • Reuse and consumption by multiple Departments
    • Enhanced Efficiency: eliminating layers, reducing staff and costs

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

example canada experience
Example: Canada Experience
  • Government On-Line (GOL) initiative
  • Census 2006:
    • 73% Mail-out via Canada Post
    • Development and integration of Internet application and processing was outsourced to private sector
    • Target: 20% of initial response from the Internet

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

example european census organization pilot for 2011
Example: European Census Organization Pilot for 2011
  • The pilot includes two key aspects:
  • eCensus (census online) and
  • Handheld devices.
  • They want to equip census takers with hand-held devices to update addresses nationwide, and for non-response follow up or to input information during a canvass of homes whose residents fail to submit paper census surveys.
  • From “RGI Conference on Technology Options”, IBM

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

recommendations for the use of pdas
Recommendations for the use of PDAs
  • Think Integration – People, Process, Technology
  • Build Partnership with:
    • Application development partner
    • Device Manufacturer
    • Connectivity provider
    • Capacity building supporter
  • Nodal Agency:
    • Operationalize the whole process

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

summary conclusions
Summary-Conclusions
  • The qualitative as well as quantitative benefits of handheld devices have been proven in field in many countries (Australia, Canada, Brazil, Malaysia, New Zealand, etc…)
  • Various Options are available for selecting handheld devices
  • Clear identification of objective is required for selecting best device
  • Important to have extensive training prior to deployment
  • Post implementation support – technical as well as hardware support ensures project success

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

slide25
Thank You

UNSD-UNESCAP Regional Workshop on Census Data Processing: Contemporary technologies for data capture, methodology and practice of data editing, documentation and archiving

Bangkok, Thailand, 15-19 September 2008

ad