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Table of contents
Data Integration
Reasons for Data Integration📚
Challenges to Data Integration
Principles of Data Integration
Methods of Data Integration
Defining Traditional ETL
Data Transformation📑
Frequently Asked Questions
Name some sub-areas of data integration.
Mention some of the benefits of data integration.
Name the three significant jobs of data integration.
What do you understand by uniform data access integration?
Last Updated: Mar 27, 2024

Fundamentals of Big Data Integration

Author Naman Kukreja
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In today’s, we don’t talk about only data. We talk about big data and metadata. We need to provide data to every application and website so that it can give results according to our search and preferences, but how can these applications and websites do they do?

The answer is by integrating the data and analyzing the data and then performing according to the analyzed data. But managing big data is quite different from composing and integrating regular data. It requires special techniques and methods.

big data

Don’t worry about this topic. We will learn the fundamentals from scratch and with a proper explanation, so let's get on with our topic without wasting further time.

Data Integration

Data integration

📗Data integration combines data from several sources using technology and business procedures to get usable and valuable information quickly. A well-designed data integration system can provide reliable data from various sources due to the expanding number of data and the necessity to communicate existing data. It promotes cooperation between internal and external users and broadens the scope of the data. Before the analysis can begin, creating a single report without unified data would need to connect to various accounts, obtain data from native applications, reformatting, and precise data.

📘In comparison to a traditional relational database, the pieces of the big data platform handle data in novel ways. This is due to the necessity for both organized and unstructured data to be managed with scalability and high speed. From Hadoop to NoSQL DB, MongoDB, Cassandra, and HBase, each component of the extensive data ecosystem have its method for extracting and loading data. Consequently, your staff may need to learn new skills to manage the platform integration process. However, as you move into the era of big data, many of your company's data management best practices will become even more vital.

📗Data must be available and accessible from a central area to be relevant and actionable. The data must be merged to be completely accessible. The popularity of "data warehouses" is based on this premise. Although most nonprofits lack the volume of data required to operate a data warehouse, they appreciate the need to ensure that all relevant data is available and accessible.

📘Data from various sources must often be translated and integrated for analytical reasons or operational activities. For research reasons, employees from all departments — and worldwide — are increasingly requesting access to the data. In addition, each department's employees create and change data required by the rest of the company. Data integration should be a collaborative and cohesive process that enhances communication and efficiency across the company.

📗The time spent preparing and evaluating data is considerably reduced when a company integrates its data. Instead of disappearing entirely, unified views are automated. To produce a report or an application, employees would no longer have to establish connections from the ground up.

📘Furthermore, manually integrating data is time-consuming, while using the appropriate technologies may save development teams substantial time (and resources). As a result, the time held may be better used on other initiatives, allowing the company to become more competitive and productive.

Reasons for Data Integration📚

📕Errors and rework are reduced when data is integrated. Manual data collection requires personnel to know where each account and file is kept and double-check everything to guarantee that the data sets are comprehensive and correct. A data integration solution that does not synchronize data must also be reintegrated regularly to account for changes. Automated updates, on the other hand, enable reports to synchronize and execute in real-time whenever they are required.

📕Data integration will dramatically increase an organization's data quality, both instantly and over time. As data enters the newly structured, centralized system, faults and problems are automatically discovered, and changes are applied. This, predictably, creates more accurate data and, consequently, a more precise analysis. Researchers will work more efficiently if all data is kept in one area.

📕Data integration enables a company to do more with fewer resources. For example, Homespice, a small retail rug firm, had trouble getting Microsoft Dynamics to operate for them. They wanted to utilize it for sales orders, accounting, and inventory, but they couldn't since their salesmen only had restricted licenses, so they had to share the login information. As a consequence, their operations were perplexing, and errors were common. The procedure also included re-entering information in Salesforce, which took a long time. After Microsoft Dynamics was linked with Salesforce, their sales team could quickly access all required information and complete a single form.

Challenges to Data Integration

Several challenges come with integrating data. We will discuss some of them in this blog section.

External Data Source Data obtained from external sources may not be as high quality as internal sources, making it unreliable. Furthermore, privacy agreements with third providers might make data sharing problematic.
Legacy System Data from older systems may be included in data integration initiatives. However, this data might lack markers that communicate activity times and dates, often included in current systems.
Cutting Edge Systems Data from modern systems often generate many copies of data (unstructured/real-time) from various sources (IoT devices, sensors, videos, and the cloud).
Getting There Organizations usually combine their data to achieve specific objectives. The approach or path chosen should not be a sequence of reactions but rather a well-thought-out procedure. Understanding the sorts of data that must be obtained and processed is necessary for data integration. The source of the data and the types of analysis are additional crucial considerations when determining the best technique to integrate the data.
Up and Running Sometimes, there is still much work to be done when a data integration system has been implemented and is completely working. The data team must maintain data integration efforts up to date with new best practices and cope with the organization's and regulatory authorities' shifting demands.

Principles of Data Integration

To transfer and integrate information correctly, there are mainly three principles of data integration. We will learn all three of them in this blog section.

📗To qualify the data and make it consistent and trustworthy, you'll need to create a series of data services. It would help if you were convinced that the outcomes of combining unstructured and big data sources with structured operational data would be relevant.

📘You'll need to have a shared understanding of data definitions. You are unlikely to have the same amount of control over data definitions in the early phases of your big data research with operational data. However, after you've determined the most critical patterns for your company, you'll need the capacity to map data items to a standard definition. Operational data, data warehousing, reporting, and business processes are all based on this common notion.

📗You'll need a simple approach to connect your significant data sources and record-keeping systems. You must give information correctly and in the proper context to make excellent judgments based on your big data research outcomes. Consistency and dependability should be built into your big data integration process.

Methods of Data Integration

We can use many methods to integrate data. We will learn all of them in this blog section.

Methods                                                                Description
Manual data integration A person manually gathering the relevant data from many sources by accessing them directly is referred to as manual data integration. The data is cleansed and stored in a single warehouse as required. This form of data integration is incredibly inefficient, and it is only appropriate for tiny businesses with minimal data resources. The data is not seen cohesively.
Middleware Data Integration It works as a middleman, assisting in the normalization of data before it is sent to the master data pool. Older legacy apps often do not play well with modern ones. When data integration systems cannot access data from one of these older applications, middleware provides a solution.
Application Based Integration It locates, retrieves, and integrates data using software tools. The software makes data from several sources compatible with a centralized system throughout this integration procedure. Organizations may use data integration software to integrate and manage data from different sources on a single platform.
Uniform access Integration It focuses on creating a translation mechanism that ensures data consistency across several sources. However, the data is usually left with the source in this scenario and just transferred to the central database. Object-oriented management systems may provide the illusion of uniformity across various kinds of databases by using uniform access integration.
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Defining Traditional ETL

ETL tools integrate three critical operations necessary to obtain data from one data environment and put it into another.

In data warehouse settings, ETL has been utilized alongside batch processing.

Business users may utilize data warehouses to combine information from many sources (ERP and CRM) to report and evaluate data relevant to their unique business focus. The data is transformed into the format needed by the data warehouse using ETL technologies. It is changed at an intermediary location before the information is fed into the data warehouse. ETL software is available from various providers, including IBM, Informatica, Pervasive, Talend, and Pentaho.

The basic infrastructure for integration is provided by ETL, which performs three essential functions:

Extract It reads the data from the source database.
Transform Convert the extracted data's format to meet the specifications of the destination database. Rules or integrating data with other data are used to transform data.
Load It writes the name to the targeted database.

 On the other hand, ETL is expanding to offer integration across a broader range of platforms than conventional data warehouses. Transactional systems, operational data stores, MDM hubs, BI platforms, the cloud, and Hadoop platforms may all benefit from ETL. Vendors of ETL software are expanding their offerings to include Hadoop and conventional data management platforms for extensive data extraction, transformation, and loading. Other data integration procedures, such as data cleaning, profiling, and auditing, use ETL and software tools to work on various parts of the data to ensure that it is trustworthy. Many ETL technologies interface with data quality tools, including data cleaning, data mapping, and data lineage identification tools. You extract the data you'll need for the integration using ETL.

For loading and converting structured and unstructured data into Hadoop, ETL technologies are required. Advanced ETL systems can read and write multiple files from and to Hadoop in parallel, reducing the data that has to be integrated into a single transformation process. Some systems provide prebuilt ETL transformation libraries for both transaction and data transformation.

Data Transformation📑

Modifying the data format so that multiple applications may utilize it is known as data transformation. This might imply converting the data from the form it is stored into the one required by the program that will use it. This procedure also contains mapping instructions, which guide apps on how to get the data they want.

Unstructured data does not work well with data transformation technologies. Consequently, firms that need to include unstructured data into their business process decision-making have had to do a lot of manual coding to get the data integration they need. Given the growing relevance of unstructured data in decision-making, prominent vendors' ETL systems are starting to provide standardized techniques for converting unstructured data so that it may be more readily connected with structured operational data.

Because of the exponential development in the volume of unstructured data, the data translation process has become significantly more complicated. A business application, such as a sales management system, or customer relationship management, usually has unique data storage requirements. The data will likely be arranged in orderly rows and columns in a relational database. If data does not adhere to these stringent format standards, it is classified as semi-structured or unstructured. For example, the information in an e-mail message is considered undeveloped. Unstructured and semi-structured data, including papers, e-mail messages, complicated messaging formats, customer support interactions, transactions, and data from packaged systems like ERP and CRM, include some of a company's most critical information.

Frequently Asked Questions

Name some sub-areas of data integration.

Data Warehousing, Master Data Management, and Data Migration are some of the subareas of data integration.

Mention some of the benefits of data integration.

It makes monitoring and reporting flexible and efficient, cost-effective, and data usage efficient.

Name the three significant jobs of data integration.

The three primary data integration jobs are transformation, provisioning, and hybrid.

What do you understand by uniform data access integration?

Data with zero latency and client access for unified views is known as uniform data access integration.


In this article, we have extensively discussed the fundamentals of data integration, its reasons, challenges faced during integration, methods, principles, and at last, followed by a brief intro about ETL and Data transformation with proper explanation.

If you are interested in learning more about Big data, you must refer to this blog. And if you want to learn more about how virtualization is connected with big data, you must refer to this blog here. You can also check out our blogs on Top 100 SQL ProblemsInterview ExperiencesProgramming Problems, and  Guided Paths. If you would like to learn more, check out our articles on Code Studio.

 “Happy Coding!”

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