egister for 120 credits eac

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
Problem 1PE
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(c) Students must register for 120 credits each year.

(d)  Students must take at least 90 credits of CS modules each year. 

Below is a UML model describing a typical organization of class modules taken by students: A student can take
several modules. (Note that a module is offered even if it is not taken by any student). Each module is
associated with a set of assessments to be done by each student. An assessment can be either an exam lasting a
couple of hours or a coursework to be submitted by a certain due date.
Student
0.
1..*
Module
name: String taken_by takes code: String
submitted_by
credit: Integer
for_module
set_work
submits
Assessment
weight: Integer
Exam
Coursework|
hours: Integer
date: String
Please write the following Constraints in OCL.
Transcribed Image Text:Below is a UML model describing a typical organization of class modules taken by students: A student can take several modules. (Note that a module is offered even if it is not taken by any student). Each module is associated with a set of assessments to be done by each student. An assessment can be either an exam lasting a couple of hours or a coursework to be submitted by a certain due date. Student 0. 1..* Module name: String taken_by takes code: String submitted_by credit: Integer for_module set_work submits Assessment weight: Integer Exam Coursework| hours: Integer date: String Please write the following Constraints in OCL.
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