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What is the difference between Data Science and Big Data?

by Sonal

What is the difference between Data Science and Big Data?

In this digital age, data has become the most important and valuable asset for most businesses. Data is fast changing the way we live and interact, and businesses worldwide are searching for multiple ways to improve their bottom lines by gathering, classifying, and analyzing them.

When working with data terminology, it is critical to understand the various scopes of work involved. We’ll look at the differences between Big Data and Data Science in this essay. Even though these terms are intertwined and frequently used interchangeably, there is a significant distinction between them in every way. When you plan to take up a data science course in Kolkata, you need to know the difference for sure.


  1. Concept


Data Science

It’s an umbrella phrase covering everything from data generation to data cleansing, visualization, mining, and analytics, and it applies to both raw and structured data (information). Statistics, programming, mathematics, and problem-solving are only a few aspects of data science.


Big Data 

Analytics is concerned with analyzing raw data to aid decision-making in the fields of business intelligence. When used, algorithmic processes will generate operational visions for complex company solutions. In a nutshell, it must be examined, transformed, purified, and modeled into data.


  1. Applications


Data Science


Digital advertising: You’ll notice that the ads are tied to your surfing history anytime you visit a website with commercials! Every digital marketing domain, such as Google AdSense or Media.Net, uses data science algorithms and machine learning to personalize the ads you see.


When you search for a term or run a query on your browser in both standard and incognito mode, you may be surprised at how different the search results are in the two browser windows. That’s because we live in a filter bubble, where when we log into our accounts, the search results are filtered depending on the account’s browsing history.


Big Data 

Gaming: Rendering a single frame of your favorite online game can take up to 100 megabytes of data. Consider how much data the server generates during a single online gaming session.


Health care: Hospitals and healthcare service providers collect large amounts of data to analyze to execute duties such as tracking and optimizing patient influx, tracking the usage of equipment and medicines in facilities, organizing patient information, and so on.


Travel industry: Through numerous channels, trip agencies collect large amounts of data from their consumers to improve their services and travel itineraries. Consumer preferences are examined to provide them with vacation or experience options that are most likely to maximize conversions.

  1. Responsibilities in the Workplace


Data Science

The most crucial role of data science can be summed up in two words: an exploratory analysis. As the name implies, science uses a combination of machine learning techniques to explore and analyze data. With the use of anomalies and trends, both hidden and evident, the research can forecast an event – such as the US housing market meltdown of 2009.


Big Data

Big Data is unstructured data that is more than one terabyte in size and collected from various sources. Future solutions are reliant on data and structure. The behavior and design of future solutions and how they can be supplied using multiple technologies such as Spark, Hadoop, and others depend on the requirements.


  1. Required Skills


Data Science

You need to have excellent analytical capabilities, data management skills, programming skills, technical skills, and a thorough understanding of database systems to become a Data Scientist.


Big Data

You need to build proficiency as a prospective prominent data analytics professional: programming languages, statistics, and maths are required. Skills in data wrangling, data visualization, machine learning, and communication abilities are all necessary.While the two industries are similar, the differences are enormous and can be mind-boggling. Because of their abilities, a Data Scientist in India earns far more than a Big Data Analyst, owing to their ability to assist organizations in uncovering the trends needed to construct profitable marketing programs.


  1. Career Options


Data Science

Data Scientists are quickly becoming the backbone of the companies for which they work, as their ability to read data is critical to a company’s success. Here are some career alternatives for you to consider:

Data/Infrastructure/Enterprise Architects are in charge of developing solutions for design analytics, app behavior tracking, and business system management.Data Scientists are often in charge of data handling, including cleaning, mining, and displaying data to uncover hidden information in trends.

The data sets must be flushed out and processed by data analysts/engineers. It is critical to discover the data sets that are beneficial to businesses and process them in real-time. As interpreters of statistical data, statisticians are the backbone of actuarial sciences and other sectors.Before you advance to a more relevant role in your profession, you must start with junior positions such as junior data analyst or junior data scientist.


Big Data

With billions of bytes of data produced every day worldwide, it’s no surprise that Big Data Analysts have various job opportunities. You can look into the following options:

Big Data Engineers are in charge of developing designs, tested and maintained by solution analysts. Hadoop and other technologies are familiar to Big Data Analysts. They are in charge of extracting information from massive data sets for statisticians and scientists to use. Managers of data warehouses are Business Intelligence Engineers. They formulate inquiries and assist in the resolution of complex problems.

So, what are the stages of becoming a well-known Big Data Analytics expert?

To build project and database management skills, you should concentrate on studying data analysis or applied statistics. Managers of data warehouses are Business Intelligence Engineers. They formulate inquiries and assist in the resolution of complex problems.



As mentioned above, the two fields are quite similar, with a significant degree of overlap. Big Data is defined as a massive amount of data that is at least one terabyte in size. However, as millions and trillions of bytes of data are collected worldwide, the data sizes used in Big Data analysis have grown to 1024 terabytes, petabytes, or exabytes.

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