The ultimate goal of data warehousing is to integrate enterprise-wide corporate data into a single repository from which users can easily run queries, produce reports, and perform analysis. Justify the need for data warehousing [25]

1. Data Consistency: Data warehousing brings all the data in an organization into a single platform. This ensures that everyone in the organization is working with the same data, which increases consistency and accuracy in decision-making.

2. Improved Data Quality: Data warehousing involves data cleaning and data integration processes. These processes help in improving the quality of data by identifying and correcting errors, removing duplicates, and making the data consistent.

3. Historical Data Analysis: Data warehouses store historical data, which is crucial for trend analysis, forecasting, and decision-making. This historical data can provide valuable insights into the business's past performance and help in predicting future trends.

4. Enhanced Business Intelligence: Data warehousing supports business intelligence tools that help in the analysis of data. These tools can generate various reports like user trends, product analysis, customer preferences, etc., which can help in strategic planning.

5. Time-Saving: Data warehousing saves time by providing quick access to data from various sources. Users can run queries and generate reports without having to wait for data from different databases.

6. Increased Productivity: With data warehousing, users can quickly access and analyze data, which increases their productivity. They can spend more time on data analysis rather than data collection.

7. Decision Support: Data warehousing provides a platform for decision support. It helps in making data-driven decisions, which are more accurate and reliable.

8. Competitive Advantage: Companies with a data warehouse can have a competitive advantage as they have access to valuable business insights that can help in strategic planning and decision-making.

9. Cost Saving: By having a single, integrated data warehouse, organizations can reduce the cost of storing, maintaining, and retrieving data from multiple sources.

10. Improved Customer Service: With the help of data warehousing, businesses can better understand their customers' behavior and preferences, leading to improved customer service and satisfaction.

In conclusion, data warehousing is essential for any organization that wants to make data-driven decisions, improve operational efficiency, and gain a competitive advantage.