We've run into some problems where two people have been making changes to the same record at the same time and changes were lost. This would be a problem in any situation but is more so for us because we are entering what can be many pages of information using the TinyMCE editor into what Dataface considers a single field in a record. Hence, this has already resulted in a fair amount of time being wasted when people have had to re-enter changes that were made.
Someone at our office suggested that the way to do this would likely be to create a check-out and check-in methodology in DataFace. Possibly, a number of other people using Dataface are ultimately using it in single-user mode but we've got a team of people working on our Dataface system which may be why it's more of an issue for us than other people.
Is this something you might be able to add and, if so, in the reasonably near future? If not, we could potentially take a stab at adding it ourselves (as part of the standard project).