Assignment8

.docx

School

Florida State College at Jacksonville *

*We aren’t endorsed by this school

Course

4212

Subject

Mechanical Engineering

Date

Dec 6, 2023

Type

docx

Pages

3

Uploaded by TVD20

ISM4212 – Assignment 8 Directions: Answer Ch. 13 Problem 1 below. Refer to Module 5 in the course for directions on submitting the completed file. Ch. 13 Problem 1: (50 pts) 1. The university computer lab's director keeps track of the lab usage, as measured by the number of students using the lab. This particular function is very important for budgeting purposes. The computer lab director assigns you the task of developing a data warehouse in which to keep track of the lab usage statistics. The main requirements for this database are to Show the total number of users by different time periods. Show usage numbers by time period, by major, and by student classification. Compare usage for different major and different semesters. Use the Ch13_P1.mdb database, which includes the following tables : USELOG contains the student lab access data STUDENT is a dimension table containing student data Given the three preceding requirements, and using the Ch13_P1.mdb data, complete the following problems: a. Define the main facts to be analyzed. (Hint: These facts become the source for the design of the fact table.) Student Classification Total number of students by time Semester Major b. Define and describe the appropriate dimensions. (Hint: These dimensions become the source for the design of the dimension tables.) Major Semester Time Classification 1
ISM4212 – Assignment 8 c. Draw the lab usage star schema, using the fact and dimension structures you defined in Problems 1a and 1b. d. Define the attributes for each of the dimensions in Problem 1b. Semester- Semester_id, Semester_description, Begin_date, End_date Major- Major_code, Major_name Class- Class_id, Class_description Time- Time_id, Time_description, Begin_time, End_time 2
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