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In this era of big data, enterprises think that Big Data have the potential to help them in increasing operational efficiency, Informing strategic direction, better customer service, Identifying and developing new products and service, enhanced customer experiences, Identifying new markets, Faster go to market, complying with regulations and others [4].

The analysis of big data is used in many sectors, ranging from marketing sector to stock market and from healthcare sector to smart cities sectors and others to improve their future decision making and enhance these sectors.

There are many studies that process large data to uncover hidden information, market trends, customer preferences and other information.

It aims to provide a great opportunity to improve future decision-making and progress in these sectors using the newer class of technology and software tools.

In Table 1, we will present examples of big data application in many sectors, and we will see the difference between them using five main characteristics: sectors, problem investigation, data source, techniques or algorithms and techniques used.