= Multi-server set-up of REDCap for GRAPHIC 2 study =

For the [[GRAPHIC|GRAPHIC 2]] study, some patients will be recruited from home using laptops.

The two laptops are UHL machines with Ubuntu VMs using VMWare Player. To maintain the integrity of data, REDCap exports should be performed regularly on the laptops, and REDCap imports on the master system to ensure full data is held on the master system. Since the GRAPHIC patient identifiers are being manually entered, there should be no issue with data duplication or over-writing.

REDCap import process includes a full validation step, which must be checked visually to ensure expected performance each time.

Key issue is that the laptops are running REDCap version 5.7.0, while the master REDCap instance is currently at 5.2.3, as is the test system. The master live and test systems should be upgraded to 5.7.0 before beginning data collection for GRAPHIC 2 using the laptops.