does anyone know how to do business modelling process?

Activity 1: Sub-processes. (5p) Remodel the process model below in two levels using sub-processes: palled Receive revised application appeared Assessappeal Appeal aged incomplete Check completeness X Contact applicant Notly applicant Visa application Receive extra documentation Register application Perform initial Request extra Verity endly Initiate checks Verity police check Decide extra check Perform additional identity checks Verily bank statements Activity 2: Assignments. (15p) Consider the following process, regarding the organisation of an assignment at a university: The assignment process starts when the course coordinator decides it is time to replace the assignment. First, the teacher designs the assignment, and then asks a number of colleagues for a review. Once the teacher has received all reviews, the assignment is updated accordingly. Next, the teacher hands out the assignments to students, who attempt the questions in the assignment by reading, calculation and writing. Afterwards, the results are gathered and corrected by the teacher. Finally, the students receive their mark. We assume that all students hand in their answers. Model the process in BPMN (which includes the control flow, organisational and data perspectives). The students can be modelled as a black box