The company offers five advanced technology courses, each of which is taught by a teaching team of two or more instructors. The company has 30 instructors and can handle up to 100 trainees per training session. 11 You are required to create a conceptual data model of the data requirements for a company that specializes in IT training. (e) Represent all the ER diagrams described in (a), (b), (c), and (d) as a single ER diagram. (d) Each employee in part (c) may or may not have an employment history. (c) Each of the employees in part (b) may or may not have one or more dependants, and each dependant belongs to one employee. (b) Each department in part (a) employs one or more employees, and each employee works for one department. Exercises 11 Create an ER diagram for each of the following descriptions: (a) Each company operates four departments, and each department belongs to one company.
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