Question

Explain in your own words what Data Management is and what its functions are.

Contrast the terms Data Warehouses, Data Marts and Data Lakes. Give an example of the use of each in a company.

Answer 1

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Data Management - Data Management is a process in which any kind of data is stored, protected, validated before storing, also processes to retrieve useful information from that data and also the users can also rely and access that data.

Functions of data management:

• Data mangement allows the user manage the databases in a very efficient and effective way.
• Data Management provides security to the data which is being managed.

Data warehouses and data lakes both can be used to store the big amount of data but a data lake can only store data in the raw form and a data warehouse stores the data in a structred way that is already processed or that will be processed in the future. Whereas Data marts are used to control and manage only a unit of component in the data warehouse.

Example of data warehouse - A company can use a data warehouse to collect the data from different sources and that can be useful for the company to make their decisions.

Example of data lake - The company will use data lake to store any kind of data and then further process it to filter the important data.

Example of data marts - Classifying the processed data from data warehouse.