Page 19 - DCAP606_BUSINESS_INTELLIGENCE
P. 19

Business Intelligence                                             Sartaj Singh,  Lovely Professional University




                    Notes                         Unit 2: Multidimensional Analysis


                                     CONTENTS
                                     Objectives
                                     Introduction

                                     2.1  Dimension Attributes
                                          2.1.1  Key Attribute
                                     2.2  Dimension Hierarchy

                                          2.2.1  Type of Hierarchy
                                     2.3  Summary
                                     2.4  Keywords
                                     2.5  Review Questions
                                     2.6  Further Readings

                                   Objectives


                                   After studying this unit, you will be able to:
                                       Recognize the Dimension Attributes

                                       Summarize the Dimension Hierarchy
                                       Identify the Type of Hierarchy
                                   Introduction


                                   In statistics and related fields, multidimensional analysis is a data analysis process that groups
                                   data into two or more categories: data dimensions and measurements. To show this, let us take
                                   the case of a football game. A data set which comprises of the number of wins for one cricket
                                   team every year for many years could be categorized into a single dimensional or longitudinal
                                   data set. Another data set which comprises of the number of wins many different cricket groups
                                   inside a year can be under a single dimensional or traverse sectional data set. A single data set
                                   that comprises of the number of wins for diverse cricket teams over numerous years could be
                                   comprised in a two-dimensional data set.

                                   Multi-Dimensional analysis is an Informational analysis on data which takes into account
                                   numerous distinct connections, each of which comprises a dimension. For example, a retail
                                   analyst may want to understand the connections amidst sales by district, by quarter, by
                                   demographic circulation or by product. Multi-dimensional analysis will yield outcomes for
                                   these complex relationships.

                                   2.1 Dimension Attributes

                                   A dimension consists of members.


                                          Example: The members of a product dimension are the individual products.





          14                                LOVELY PROFESSIONAL UNIVERSITY
   14   15   16   17   18   19   20   21   22   23   24