Draw a lattice hierarchy for dimension, Mathematics

Assignment Help:

New England University maintains a data warehouse that stores information about students, courses, and instructors. Members of the university's Board of Trustees are very much interested in students' academic performance as well as instructors' teaching effectiveness. For example, they may like to know:

  • The average grades for different courses taught by different instructors.
  • The grade distribution for a particular course in a particular semester (e.g., a newly offered MBA course).
  • The average ratings of teaching effectiveness for instructors at different ranks (e.g., Lecturer, Assistant Professor, Full Professor, etc.).
  • The correlation between students' grades and their ratings for instructors' teaching effectiveness.

 

Note that each undergraduate student must declare his/her major and up to two minors by the end of the junior year. A graduate student may have a major (e.g., MBA) and a minor or concentration (e.g., IT).  Some courses (e.g., undergraduate GB courses) may be "co-offered" by several departments. An instructor may be affiliated with more than one department.

1. Draw the two star schemas and specify all relevant attributes.

2. Identify conformed dimensions.

3. Identify any slowly changing dimensions and the attributes whose values may change from time to time.

4. Draw a lattice hierarchy for each dimension that has more than one level.


Related Discussions:- Draw a lattice hierarchy for dimension

Ratio, the ratio of dogs to cats is 2 to 9.if there are 10 dogs how many ca...

the ratio of dogs to cats is 2 to 9.if there are 10 dogs how many cats are there?

Determine the probability - conditional probability, A bag of 28 tulip bulb...

A bag of 28 tulip bulbs contains 12 red tulip bulbs, 9 yellow tulip bulbs, and 7 purple tulip bulbs. Two bulbs are selected without replacement. Determine, a) The probability th

How to adding rational expressions with common denominators, Adding Rationa...

Adding Rational Expressions with Common Denominators To add or subtract fractions or rational expressions with common denominators, all you do is add or subtract the numerators

#title.simpal harmonic motion., #questionShow that the system oscillates in...

#questionShow that the system oscillates in simple harmonic motion demonstrated by; , for which the general solution where X = (x – x0)..

Linear relations, a drawn picture on a graph that includes equations of eac...

a drawn picture on a graph that includes equations of each line

Time and Work, A and B can finish a piece of work in 16 days and 12 days re...

A and B can finish a piece of work in 16 days and 12 days respectively.A started a work and worked at it for 2 days.He was then joined by B.Find the total time taken to finish the

Highest common factor (hcf), We know that a factor is a quantity whic...

We know that a factor is a quantity which divides the given quantity without leaving any remainder. Similar to LCM above we can find a highest common factor (HCF)

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd