In this project a fully functional information system was developed utilizing the open data provided by the data.gov.uk website. This data consists of various road accidents entries with vehicles and casualties references as well as alcohol tests' measurements.
The ETL process is performed using integration services project in Visual Studio's Data Tools. Utilizing flow tasks and SQL tasks the available .csv files are imported in the data warehouse' s database. Data cleaning, integration, transformation, reduction techniques are applied on the SQL Server using stored procedures functionality, which populate the dimensions and fact table with the appropriate values as defined here. Finally an analysis service project is used for the creation of the OLAP - cube. Two separate cubes were created, one containing accident' s data, and another with alcohol breath tests.
PowerBi reports can be found below :
The directories above contain the integration and analysis services projects as well as the SQL and dataset samples for each cube respectively.