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What is data cleansing and why data cleansing is a fundamental process

Posted: Sun Dec 22, 2024 5:11 am
by nurnobi22
With the increasing evolution of technologies, the amount of information generated is increasing every day. In this sense, the practice of data cleansing has become essential for companies that want to ensure the accuracy and reliability of their information.


This process is responsible for identifying and correcting inconsistencies, eliminating duplicate data and removing unnecessary information . This ensures that only quality data is used in analyses and business processes.


For technology companies, where trust in data is paramount, maintaining a high level of data sanitization is a competitive differentiator.


Keep following to understand the benefits and how to apply this activity to your business.


Why is data cleansing so important?
Data cleansing goes beyond simply cleaning data . It ensures that business information used to make decisions and develop strategies is correct and up-to-date, minimizing errors that can harm operations.


Below, we’ll explore the top reasons why data cleansing is vital for tech companies.


Data quality
Poor data quality can compromise an organization’s performance. Incorrect or incomplete information leads to inaccurate analyses, misguided decisions, and missed business opportunities.

Data sanitization improves the reliability of analyses, enabling companies to become data-driven and make informed decisions based on accurate data .



Error reduction
Errors in data can result in significant failures in corporate systems, from issues with financial reporting to failures in ETL (extract, transform, and load) systems .


The data cleaning process minimizes these failures, ensuring that data is always ready to be processed and analyzed correctly.



System reliability
Data-dependent systems such as Master data management (MDM) , Machine Learning, and Data Analytics require clean data to function efficiently.


Without data cleansing , confidence in the processed information decreases, impacting the effectiveness of technological solutions.


The main challenges of data cleaning
With the increase in the volume of data generated and stored malaysian whatsapp number by companies, the need for appropriate methods and tools to ensure data sanitization and the elimination of incorrect or duplicate information grows.

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Below are the main challenges faced during the data clearing process .


Big data
Technology companies deal with huge amounts of data on a daily basis, which makes the process of data cleansing a complex task.


When volumes are very high, identifying inconsistencies and manual errors is unfeasible, which requires the use of automated tools to ensure process efficiency.


Inconsistencies and different formats
Another common challenge in data cleansing is the presence of inconsistencies and different data formats .


This can happen when data comes from multiple sources, such as legacy systems, databases, or external sources. Standardizing this data so that it can be integrated and analyzed correctly is essential to avoid failures in data segmentation and analysis processes.


Incomplete or duplicate data
Duplicate or incomplete information can distort analysis and reporting results, negatively impacting business operations.


Ensuring data completeness and eliminating duplicates are critical steps in the data cleaning process . Proper tools to detect these issues help maintain data integrity.


Data cleansing process steps
The data cleansing process has well-defined steps that ensure the integrity and reliability of data for analysis and corporate systems. Each one plays a crucial role in ensuring that data is ready to support decision-making and process automation.


Identifying errors and inconsistencies
The first step in data cleaning is to identify errors and inconsistencies in the data sets. This includes locating incorrect, outdated, or incompatible records. Using advanced tools such as

Data Analytics and AI for data analysis can help speed up this phase by identifying problems in an automated way.


Data correction
Once errors have been identified, the next step is to correct the data. This involves correcting erroneous information, standardizing formats, and ensuring that records are complete.


Furthermore, standardizing information is essential, especially in scenarios that involve multiple data entry sources.


Removal of unnecessary data
Many systems accumulate outdated or irrelevant data over time. Data cleansing involves removing this type of unnecessary data, ensuring that only relevant and up-to-date information is retained. This contributes to the efficiency of systems and the accuracy of analyses.


Data cleansing tools
There are several tools on the market that help automate and optimize the data cleansing process .


Already established solutions, such as those used in ETL and Data Lake processes , are capable of processing large volumes of data, identifying errors and ensuring effective data sanitization .


These tools allow better integration of data into systems such as data segmentation with Qlik, Power BI, Looker, Tableau and Master Data Management (MDM), making the work of professionals in the field easier.


What are the benefits of data cleansing for technology companies?
Data cleansing brings several benefits to technology companies, which depend on the accuracy and reliability of information to operate efficiently and competitively:

More accurate decision making : Decisions are based on reliable information, resulting in successful strategies and more effective operations.

Improved data security : This also contributes to data security by eliminating unnecessary information and reducing exposure to vulnerabilities. This is important for companies that deal with data lakes and large volumes of sensitive information.

Improved operational efficiency : Quality data facilitates integration between systems and the execution of automated processes, such as ETL and Machine Learning , allowing companies to save time and resources.

Data cleansing and compliance
Compliance with data protection regulations, such as the LGPD (General Data Protection Law) in Brazil, makes the data cleansing process even more impactful.


Companies need to ensure that their data is handled securely and is kept up to date, avoiding legal sanctions and ensuring the privacy of customer information. Maintaining an ongoing data sanitization program is essential to comply with requirements and maintain the company’s reputation.


How to Implement an Effective Data Cleansing Strategy
To ensure that the data cleansing process is successful and continuous, it is important for technology companies to follow a well-defined strategy. Here are some essential steps:

Define data cleansing policies : Establishing clear guidelines for the data cleansing process is essential. These policies should define when and how data will be cleansed, and who will be responsible for the process.

Team training : The data team needs to be trained to perform data cleansing effectively. Investing in training and employee awareness is an important step in ensuring data quality.

Continuous monitoring : Data cleansing is not a one-time process, but rather an ongoing activity. Regular monitoring of data and the use of automated tools can ensure that information remains up-to-date and error-free.

Count on Sysvision for data security in your company
Sysvision understands that data cleanliness is a cornerstone of the success of technology companies. Keeping data clean and secure not only improves the accuracy of your analyses, but also ensures that your company is prepared to face the challenges of the future.


With our experience in data governance, we offer tailored solutions to ensure the integrity, security and compliance of your information, protecting your business and optimizing operational efficiency.


Are you ready to take your company's data management to the next level? Learn about our services and see how Sysvision can transform the way your company does data governance .