TCP is a reliable protocol. Verification of the data (to an extent) is performed. UDP is an unreliable protocol. It's a "fire and forget" protocol. Since the verification ( packet counts, checksums ) isn't being done, the application[s] have to do it.
The answer to this question is: coding and testing
Extreme programming is a software development methodology that aim to improve software quality by measuring whether the technology can be used to fulfill customer's requirement.
To actually get somethings that is accepted by the customers, various coding and testing the software will be done constantly
A consistent database base is one in which all data integrity constraints are satisfied.
Answer:
I don't know if it would work for what you need but you could try scratch. (sorry if this isn't what you needed.)