Big data is a term that describes the large and diverse datasets that are generated from various sources at high speed and require advanced analytics techniques to process and extract value from them. Big data can help organizations gain insights, uncover patterns, and make informed decisions.
The company is implementing big data because it is using different information sources in combination with its current databases, which implies that the data is large in volume and variety.
The company is also using the CSP's solutions to ingest, transform, and process the information, which implies that the data is high in velocity and requires specialized tools and frameworks to handle it. The company is using big data analytics to analyze the results of its email marketing campaign, which can help it understand the effectiveness, impact, and return on investment of its marketing strategy.

A feasibility study evaluates the financial, technical, and operational viability of a project, including the potential cost savings of moving to the cloud compared to maintaining an internal data center.
It provides detailed analysis on financial aspects, such as savings, resource requirements, and long-term sustainability, helping the company make an informed decision about the move to the cloud.