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  Design and Implementation of Educational Data Warehouse Using OLAP  
  Authors : Zina A. S. Abdullah; Taleb A. S. Obaid
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Educational Data Mining (EDM) is a method to support learning and teaching processes. Educational Intelligence (EI) is not wide spreading like a business Intelligence (BI). Data Warehouse (DW) technology aims to collect historical data from different kinds of Database (DB) and unifies them under single schema by using the most powerful tool as OLAP which helps the decision maker to make a right decision. Educational Intelligence system combines Educational records of students from two different sources in a single DW. The inputs of educational data warehouse can be in any format (such as reports...). Since the quantities are huge, they are almost meaningless, on the other hand the outputs mainly consist of reports and flowcharts and KPIs with meaning and effective factor for decision maker. The proposed DW is implemented based on two simulated databases of Computer Science Department in the College of Science, University of Basra for the last ten years and AL_IRAQ University for the last 4 years implemented by SQL Server 2014 and SQL Server Data Tool (SSDT) 2012.

 

Published In : IJCSN Journal Volume 5, Issue 5

Date of Publication : October 2016

Pages : 824-827

Figures :05

Tables :--

 

Zina A. S. Abdullah : Computer Science, University of Basra, Iraq.

Taleb A. S. Obaid : College of Information Technology , University of Basra, Iraq.

 

 

 

 

 

 

 

Data Warehouse, Educational, OLAP System

This paper described design and implementation of a successful educational data warehouse for higher education at the University of Basra. Data warehousing technology helps to collect historical huge data from several kinds of databases and unify them under unified schema in order to be used by on line Analytical Processing (OLAP) to help lecturer and decision makers. Extract, Transform and Load (ETL) system is the core of the DW. Each type of data base needs different constriction of ETL system according to the data types. OLAP is the storage of multidimensional, generally hierarchical, data providing near constant-time answers to queries. The OLAP techniques can be utilized to obtain students’ achievements and to perform descriptive analysis. Decision Support System (DSS) technique and algorithm can be applied in order to forecast potential areas of studies for the students. The proposed designed approach might be implemented by the lecturers and heads of the departments and the decision makers.

 

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