Each course is divided into subcourses where a subcourse may be part of more than one course. Information on subcourses includes the name, identification number and the number of students taking the course.Exercise 4 – IT TRAINING COMPANYYou are required to create a conceptual data model of the data requirements for a company that specializes in IT training. The company has 30 instructors and can handle up to 100 trainees per training session. The company offers five advanced technology courses, each of which is taught by a teaching team of two or more instructors. Each instructor is assigned to a maximum of two teaching teams or may be assigned to do research. Each trainee undertakes one advanced technology course per training session.(a) Identify the main entity types for the company.
Database Design CC204May – Aug 2017(b) Identify the main relationship types and specify the multiplicity for each relationship. State any assumptions you make about the data.(c) Using your answers for (a) and (b), draw a single ER diagram to represent the data requirements for the company.
You've reached the end of your free preview.
Want to read all 3 pages?
- Summer '19
- Entity-relationship model, Database Design CC204