If you want a back-up copy of your Framework design to be created every time you save the Framework, select the option the Keep XML File Versions in the Framework Details tab.
The back-up copies of your definition files are kept in the Execute directory of your partition. They have names like vf_Sy001_System_YYYYMMDD_HHMMSS.xml. The last portion of the name reflects the date and time they were saved.
To use a back-up copy, rename or delete the current definition XML file using Windows Explorer, and then remove the date and time portion from the name of the back-up file.
Back-up copies are kept for your Associated XML Definition Files as well as the Framework definition files.
If you want to be periodically prompted to save the Framework, specify a time interval in theoption.