Mapper was built using Ruby-on-Rails as a part of the CLOSER project work. It is a web application and users from throughout the CLOSER consortium have access. After early attempts to complete the linking processes using Excel, it became apparent that this would be increasingly unwieldy as the number of items grew. The Excel process had, however, allowed iteration to overcome a number of issues and so Mapper was relatively easy to construct.

Useful files that mapper outputs and the URLs to find them with:

/instruments/#/

• mapping.txt. Mapping file that joins questions and variables (listing all variables and DVs).
• dv.txt. Mapping file that joins DVs to variables.
• topic-q.txt. Mapping file that joins topics and questions
• topic-v.txt. Mapping file that joins topics and variables
• variables.txt. List of all variables with name, label and type
• mapper.txt. The original import file from CADDIES

Useful Links

• CLOSER Mapper Developer Documentation
• CLOSER Mapper GitHub Repository