Definitions

A middleware event is a method exposed by the MES middleware and that method can be invoked by the client layer (e.g., stateless API, etc.) to perform some action in the MES database.

A hook represents a custom functionality implemented by the end user in the form of a stored procedure, assembly, workflow, etc. A pre-hook represents a custom functionality implemented by the end user to execute that functionality before the middleware event is executed. A post-hook represents a custom functionality implemented by the end user to execute that functionality after the middleware event is processed.