more an approach question, how to deal with the problem:
What methods, approaches, techniques, ideas or terms can be used for the following problem?
Several users should be able to access (read, write, recreate, edit) a web address book. How do you handle the case that several users are working on one record at the same time?
E.g. editing or one user reads the record while another user changes it (e.g. phone number), then the reader doesn't even notice that his information is no longer correct and it leads to problems.
Are there any known (even new) approaches here? Bit researched but many entries in forums are already many years old.
Many thanks.