The work of the Human Rights Data Analysis Group is based on a conceptual frameworks that includes:

• The establishment of a controlled vocabulary
   
• The application of a human rights data model
   
• The control for bias using multiple systems estimation
   
• The identification of source and judgment layers
   
• The use of "free" software
   

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The Human Rights Data Analysis Group (HRDAG) applies information technology solutions and statistical techniques to help human rights advocates build evidence-based arguments.