Describe the basic features of the relational data model and discuss their importance to the end user and the designer. Describe the Big Data phenomenon.

The answer to this question can be described as follows:

Explanation:

Relational data model:

The use of data tables to organize sets of entities into relationships requires a relational data model. this model work on the assumption, which is a primary key or code, that is included in each table configuration. The symbol for "relational" data links and information is used by other tables.

Model Design:

This model is used for database management, it consists of structure and language consistency. It is design in 1969.

Importance of data model:  

This provides a common standard for processing the potentially sound data in machines, that was usable on almost any one device.  

Big Data:

It moves to locate new and innovative ways to handle large volumes of authentication tokens and to gather business insights when offering high efficiency and usability at an affordable cost at the same time.