The Accept column displays check boxes showing the current choice for how data will be updated.
The Matched column displays five possible options.
The Matched Against column lists the type of matching object in the target database.
The No. of Changes column lists how many attribute changes are available for update.
The Changed Attributes column displays a comma separated list of the attributes which have changes available for update.
The Attributes to be Updated column displays a comma separated list of the attributes which have changes available for update and which you have chosen to be updated.