Data Scientist: Definition, Characteristics, Importance, Major areas of Science, Advantages, Disadvantages


A data scientist is a professional responsible for collecting, analyzing, and interpreting a large amount of data. It is an offshoot of several traditional technical roles, including mathematicians, scientists, statisticians, and computer professionals. Basic responsibilities include gathering and analyzing data, from various types of analytics and reporting tools to detect patterns, trends, and relationships in data sets. The demand has grown significantly over the years for big data, the voluminous amounts of structured, unstructured, and semi-structured data that a large enterprise of things produces and collects.

Characteristics of Data Scientist

The soft skills required for the role include intellectual curiosity, intuition, and creativity. Interpersonal skills are a critical part of the role it involves working across many terms regularly. Many employers expect their data scientists to be very strong to present data insights to people at all levels of an organization and they also need leadership skills to steer data-driven decision-making in an organization. Leadership and the ability to predict risks are also important characteristics of handling the massive amount of data required for predictive analysis.

Major areas

Multidisciplinary investigations – Involving large complex systems with interconnected pieces, data scientists use various methods to collect large amounts of data.

Models and methods for data – Data scientist needs an rely on experience and intuition to decide the methods will work best for modeling their data, and they need to adjust their methods to the insights they seek.

Pedagogy – It is up to a data scientist to work with companies and clients to determine the best ideologies to collect and analyze information about their customers and products.

Computing with Data – The biggest thing the data scientist have in common is the necessity to use the tools and software to analyze and involves in the algorithm and statistics because of the size of the pool of information working with the massive.

Theory – Data science theory is an evolving and sophisticated professional area with countless applications.

Tool evaluation – There are many tools available for data scientists to use to manipulate and study huge quantities of data to evaluate their effectiveness and keep trying new ones as they become available.

Importance of Data Scientists

Data Science is a highly interdisciplinary practice that involves a large scope of information and usually takes into account the big picture more than the other analytical fields. The main goal is to provide intelligence about the consumers and campaigns and helps companies to create strong plans to engage their audience and sell the products. It mainly relies on creative insights using big data through various collection processes like data mining and can help brands understand the customers to determine the long-term success of a business. Data science is used to help companies control the stories of their brands because big data growing rapidly and the tools need an expert to learn their applications to achieve their goals based on research and not just intuition. It plays a major role in security and fraud detection created through personalization and customization. The analysis can be used to make customers feel seen and understood by the company.

Data scientist vs Data Analyst

The main role of this is too often confused with the data analyst, but the overlap in many of the skills also has some significant differences. The role of a data analyst varies depending on the company in general professionals collect data and perform statistical tools and techniques. The analysts also identify a pattern to make a correlation in the data sets to identify the new opportunities in the business processes, products, or services. It is responsible for the tasks to analyse big data using the advanced analytics tools that are expected to have the research background to develop new algorithms for specific problems. They may also be tasked with exploring data without the specific problem to solve the understanding of data and business enough to formulate the questions and deliver insights back to business executives to improve business operations, products,  services, or customer relations.

Working method

The work of data analysts and data scientists can seem similar in both the find trends or patterns in the data to reveal new ways for organizations to make better decisions about decisions about operations. Still, data scientists tend to have more responsibility and are generally considered more senior than data analysts. It can be expected of their questions about the data, while the data analysts might support teams to set goals in the mind. It might also spend more time developing models using machine learning, or incorporating advanced programming to find and analyze data. Employers generally like some academic credentials to ensure that data science is not always required. It can polish some of the hard data skills, think about taking an online course, or enroll in a relevant boot camp. Data scientists can expect to spend time using a programming language to sort through analyze and otherwise manage a large amount of data. popular programming languages for data science include Python, R, SQL, and SAS.

Data visualization can create charts and graphs and is a significant part of being a data scientist. Seek positions that work heavily with the data such as the data analyst, statistician, or data engineer. It can be highly technical so it is possible to encounter both technical and behavioral questions. With a few years of experience working with data analytics to move into data science.

Steps in data science

Business Understanding – For any project or problem-solving, the first stage is always understanding the business. This involves defining the problem, project objectives, and requirements of the solutions. This step plays a critical role in defining how the project will develop. A thorough discussion with the clients, understanding how their business works, requirements from the product or service.

Analytical approach – After the problem has been clearly defined, the analytical approach which will be used to solve the problem can be defined. This means expressing the problem using statistical and machine learning techniques. There are different models that can be used and it depends on the type of outcome needed.

Data Requirements – The analytical approach chosen in the previous stage defines the kind of data needed to solve the problem. This step identifies the data contents, formats, and sources for data collection.

Data Collection – In the fourth stage, the data scientist identifies all the data resources and collects data in all forms such as structured, unstructured, and semi-structured data that is relevant to the problem. Data is available on many websites and there are premade datasets that can also be used.

Data Understanding –  In this stage, the data scientist tries to understand the data collected. This involves applying descriptive analysis and visualization techniques to the data. This will help in a better understanding of the data content and the quality of the data and developing initial insights from the data.

Data Preparation –  This stage comprises all the activities needed to construct the data to make it suitable to be used for the modeling stage. This includes data cleaning i.e. managing missing data, deleting duplicates, changing the data into a uniform format, etc., combining data from various sources, and transforming data into useful variables.


  • It’s in Demand. Data Science is greatly in demand.
  • The abundance of Positions.
  • A Highly Paid Career.
  • Data Science is Versatile.
  • Data Science Makes Data Better.
  • Data Scientists are Highly Prestigious.
  • No More Boring Tasks.
  • Data Science Makes Products Smarter.


  • Data Science is a Blurry Term.
  • Data Science is a very general term and does not have a definite definition.
  • Mastering Data Science is near impossible.
  • A large amount of Domain Knowledge is Required.
  • Arbitrary Data May Yield Unexpected Results. The problem of Data Privacy.