Operation interface which allows the mechanical engineering students

Assume that you are trying to build an operation interface which allows the mechanical engineering students in UNT to register for any MEEN 3000 level classes (which are highlighted in blue as shown in 2019-2020 MEE curriculum flowchart). In order to register for a MEEN class, students need to meet all the prerequisites as well as co-requisites. Once he/she fulfilled all the conditions for a certain class, that class can be registered successfully. Otherwise the system will object his request and give that student a reminder why he/she could not register for that class.