4 Clinical data models

• In DEV and QC, run a full data model installation only to revert destructive changes
  
• Install and promote data models after every change
  
• Check out the associated transformation when you update a target data model
  
• Limit data model size
  
• Check out a data model to remove or update its business areas
  
• Include a SUBJECTVISIT table
  
• Use SDTM Identifiers for as many columns as possible