It’s all about the termbase definition when you want to merge termbases, or import data into MultiTerm termbases. The XDT… otherwise known as the MultiTerm Termbase Definition file is the key to being able to ensure you are not trying to knock square pegs into round holes! I’ve written in the past about the flexibility of MultiTerm and it’s this flexibility that can make it tricky for new users when they try to merge their collections of termbases together, or add to their data by importing a file from a colleague.
So what do we mean by definition? Let’s think about keys as I think this is quite a good analogy… the four keys in the image on the right will all open a lock, but they won’t all open the same lock. If you want one of these keys to open another lock then you need to change its shape, or it’s “definition”, to be able to open the lock. A termbase definition works in a similar way because MultiTerm is flexible enough to support you creating your own lock. That lock might be the same as someone else’s, but theirs could also have a different number of pins and tumblers which means your key won’t fit.