A workflow may include function calls to functions executed with respect to instances of elements. Functions may be stored in a file store. When functions are edited and checked in to the file store, change to the function may be detected and workflows implicated by the change to the function are identified. Execution of the implicated workflows may then be invoked in response to detecting the change. Functions may have an exclusivity associated with them such that execution of a workflow includes executing function calls alone where required by the exclusivity or concurrently where permitted by the exclusivity. Check-in monitoring on a repository of element files (element definition and element functions) may be performed. In response to check-in of a file, workflows including elements referencing the file may be executed.