SHACL

Shacl stands for "Shapes Constraint Language", and it is a way to describe the structure of data. It is sort of like creating a blueprint for data, which describes the type of data, and how it should be formatted. For example, if you have a phone number field, you might use Shacl to say that the data should be formatted like "###-###-####". This way, you know that the data put into that field will be in the right form.