The art and science of gaining information and insights from data are known as data science. This can include everything from data analysis to insight gathering to more complex jobs like machine learning and predictive analytics. Practically every aspect of company operations depends on data science. It helps businesses find new opportunities, boost marketing and sales tactics, and increase operational efficiency.


It can be challenging to keep up with the rapidly changing field of data science. There is a collection of starting tools for each step. These resources, which can be taught in the comprehensive data science course in Chennai, are essential for data science tasks.

What is the Life cycle of data science?

The data science life cycle is a seven-step procedure that will guide you through the data gathering, analysis, and decision-making processes while assisting you in deciding how to utilize your results best. Understanding the processes in this lifecycle is crucial for data scientists because it gives them direction and guarantees they are approaching each new project with fresh eyes.


To help you better grasp what it takes to succeed as a data scientist, let’s go through each stage in detail.

  • Understanding business issues 

The organization’s objectives are at the center of the entire cycle. Therefore, defining and comprehending the actual problem comes before gathering data and evaluating it. You should be able to translate the business needs into queries and then into insights that can be put into practice.

  • Data collection  

After gaining a thorough grasp of the issue, the following stage is to gather the appropriate information. This entails obtaining all the data you want for your project, regardless of how straightforward it may be, like tracking sales, or how challenging it may be, like developing an artificial intelligence system. When gathering data, you should also consider security and privacy concerns. If you have access to sensitive data like patient medical records or credit card information, you must take extra security procedures to ensure that it is not compromised.

  • Data cleansing and preparation

Data preparation is the stage that follows data collection. This involves selecting the appropriate data, integrating by combining datasets, cleaning the data, and processing it.


Data preparation is the most time-consuming but significant phase in the whole data science lifecycle. The accuracy of your model will depend on the data you have at your disposal.

  • Analyzing exploratory data (EDA)

The data must then be analyzed to spot patterns, trends, and correlations. This stage involves analyzing the data using various statistical techniques to identify the dependent and independent variables. When data is carefully studied, it becomes obvious which facts or features are crucial and how dispersed they are. To better comprehend the data, a variety of graphs are employed. Many people utilize Tableau, PowerBI, and other visualization and data exploration tools in this phase.

  • Analyzing Results

After model construction and evaluation, you must explain the model outcomes and submit your findings to stakeholders. The intricacy of the model doesn’t disturb the management executives. They want to know how your company strategy can help them expand. To show how a model meets the business challenges described in the first phase of the data science life cycle, a data scientist must possess good presentation and data storytelling skills.

  • Model Execution

If the stakeholders are pleased with the output, the following step is to deploy your model after reporting the findings. Additionally, you must ensure that you have chosen the best option after carefully examining the model. The format and channel are then set, and it is subsequently deployed. 


Note: The data science life cycle described above must be rigorously carried out at each level. The entire effort will be wasted if any step is carried out improperly since it will affect the following phase. For instance, if data is no longer gathered correctly, records will be destroyed, making it impossible to create an ideal model.

Final words

Both inexperienced and seasoned data scientists can use all the procedures described above. Your task as a beginner is first to study the approach, then put it into practice and release smaller data science projects. After completing the data science life cycle, you are prepared to go on to the next career stage in this field.


In conclusion, the data science life cycle is a linear, iterative process that is concentrated on the organization’s unique issues, objectives, and strategies. These seven components make up the data science life cycle in its entirety.


They’re all interconnected, but they’re not the same thing. That being said, working with each of them is a vital part of the data science process and will allow you to come to your conclusions and solutions for whatever business you are working on. Sign up for the data science training in Chennai, to pursue a lucrative career in the data science field.