Data Modelling Analyst: 9 Key Roles and Responsibilities

on Data Aggregation, Data Analytics • April 14th, 2022 • Write for Hevo

Data Modelling Analyst_FI

The practice of examining data objects and their interactions with other objects is known as Data Modelling. It’s utilised to look at data needs for a number of commercial projects. The Data Models are designed with the intention of storing data in a database. Instead of concentrating on the operations that must be carried out, the Data Model concentrates on the data that must be collected and organised.

Data Modelling is a crucial component of Data Management. It aids in the detection of information requirements for various business processes by displaying datasets and their business context visually. Following that, the data components that will be included in applications, as well as the Database or File System Structures required to process, store, and manage the data, are specified.

This article explains the key role and responsibilities of a Data Modelling Analyst. It also explains the Data Model as a flowchart that depicts the connections between Data Elements, Properties, and Attributes.  

Table of Contents

What is Data Modelling?

Data Modelling is the process of studying data objects and their relationships with other objects. It’s used to research data requirements for a variety of commercial tasks. The Data Models are created with the goal of storing information in a database. Instead of focusing on what processes you must conduct, the Data Model focuses on what data is required and how you must organize it. A Data Model is similar to a blueprint for construction. It’s a method of capturing the design of a complex software system in an easily understandable graphic. The graphic will be built with Text and Symbols to show how the data will flow. It is often referred to as a plan for new construction.

A Data Model is a flowchart that depicts data entities, their attributes, and the relationships that exist between them. Before any code is developed, it allows Data Management and Analytics teams to establish data requirements for Apps and uncover mistakes in development plans. The act of generating a simplified depiction of a software system and the data pieces it includes, known as Data Modelling, aids an organization in successfully using its data to satisfy Business Intelligence demands.

Data Models can also be produced through reverse engineering, which extracts them from existing systems. This is done to record the structure of Relational Databases that were generated on the fly without prior Data Modelling, as well as to define Schemas for raw data sets stored in Data Lakes or NoSQL Databases to enable specialized Analytics applications.

Since a Data Warehouse is a depository for data coming in from numerous sources, which are likely to have comparable or related data in different formats, Data Modelling is essential for Data Warehousing. To identify how to change each incoming dataset to comply with the needs of the Warehouse Architecture, so that the data is useful for Analysis and Data Mining, it is required to first map out the warehouse formats and structure. The Data Model subsequently serves as a key enabler for Analytical Tools, Data Mining, Executive Information Systems (Dashboards), and integration with all data systems and applications.

Data Modelling Analyst: Data Model
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What is the purpose of Data Modelling?

Data Modelling is an important aspect of Data Management. It helps detect information needs for various business processes by giving a visual display of datasets and their business context. The data pieces that will be included in applications, as well as the Database or File System Structures needed to process, store, and manage the data, are then specified. In many cases, Data Modelling is used in conjunction with data governance programs to assist develop uniform data definitions and internal data standards.

Furthermore, it is critical to Data Architecture procedures that describe data assets, map how data moves across IT systems, and develop a Conceptual Data Management Framework. Along with data flow diagrams, architectural blueprints, a uniform data language, and other artefacts, Data Models are an important part of data architecture.

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What is the procedure for Data Modelling?

In an ideal world, members of the Data Management team and business users work together to construct Conceptual, Logical, and Physical Data Models in a sequential process. During the Conceptual and Logical Modelling phases, input from business executives and workers is extremely vital. Otherwise, Data Models might not adequately represent the business context of data or meet the information demands of an organization.

A Data Modelling Analyst or Data Architect typically starts a Modelling project by interviewing business stakeholders to collect needs and details about business processes. Business Analysts can assist in the development of both Conceptual and Logical Models. The Physical Data Model is utilized at the end of the project to express precise technical needs to Database Designers.

During a 2019 Dataversity webinar, Peter Aiken, a data management consultant and associate professor of information systems at Virginia Commonwealth University, listed the six processes for designing a Data Model:

  1. Determine which types of businesses are presented in the dataset.
  2. To distinguish between entities, identify crucial attributes for each.
  3. Make a rough Entity-Relationship Model to explain how things are linked together.
  4. Determine which Data Attributes should be included in the Model.
  5. Connect the variables to entities to show the data’s business value.
  6. Complete the Data Model and check for accuracy.

Even though, the procedure isn’t usually completed: As an organization’s data assets and business demands change, data models must frequently be updated and improved.

What is the role of a Data Modeller?

A Data Modeller would not always query or modify data, nor would be involved with Database or Data Repository design or implementation.

  • To visualize relationships between critical business concepts, they develop an entity-relationship diagram.
  • They develop a conceptual data dictionary to communicate critical data requirements to business stakeholders.
  • For a Data Migration or Integration project, they construct a data map to resolve any data difficulties.

Data Modelling and Data Analysis

Data Analysis is frequently required while making Data Modelling decisions, which indicates that Data Modelling can incorporate some Data Analysis. With very minimal technological skills, such as the capacity to perform simple Database Queries, a lot may be accomplished. Many Business Administrations succeed without these more technical abilities, relying instead on their ability to communicate with technical specialists and other informed stakeholders to ensure that the data is properly understood enough to make the best Modelling decisions.

The non-technical Business Administration can also assess sample data, conduct stakeholder interviews to uncover potential data-related concerns, review current Database Models, and analyze exception reports. While Data Analysis abilities are useful, they are not required for a Business Analyst. Data Modelling, on the other hand, is a Business Analyst’s domain.

What is Data Analysis?

Analytics brings together theory and practice to identify and deliver Data-driven Insights that assist managers, stakeholders, and other executives make better decisions in their organizations. Experienced Data Analysts consider their job in a broader context, both within their organisation and in light of external factors. Analysts can also take into account the competitive climate, internal and external company interests, and the lack of specific datasets when making Data-based recommendations to stakeholders.

A technique for gaining insight into an organization’s data is Data Analysis. The following are some of the roles that a Data Analyst might have:

  • To assist the business in making better decisions, develop and analyze essential reports.
  • As part of Data Mining, combine data from numerous sources so that it may be analyzed and reported on.
  • To examine analytics and analyze patterns, execute queries on current data sources.

Data Analysts will have direct access to the organization’s Data Repositories and will be able to query and manipulate the data using their technical expertise. They may also be experts in Statistical Analysis and have a strong mathematical background.

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Key Roles and Responsibilities of a Data Modelling Analyst

Data Modelling Analysts use theory and practice to find and express Data-driven insights that help managers, stakeholders, and other executives make better decisions in their organizations. The functions and responsibilities of a Data Modelling Analyst will vary based on the type of organization and the amount to which Data-driven Decision-making methods have been implemented.

 In general, though, a Data Modelling Analyst’s tasks usually involve the following:

1) Data Mining

Data Modelling Analysts extract information from a variety of primary and secondary sources. Following that, they organize the data in a logical and understandable format so that creating suitable documentation enables stakeholders to comprehend the processes of the Data Analysis process and, if necessary, reproduce or replicate the analysis.

2) Database Maintenance

Data Modelling Analysts assist in the design and maintenance of Database Systems. This includes Database creation, updating, reading, and deletion.

3) Data Preparation

Data collected from various sources will always have Errors, Redundancy, Missing Values, and other issues, indicating that the data is in an unprocessed state. Following Data Extraction, Data Modelling Analysts must convert the Raw Data into Structured Data by resolving errors in the data, attempting to remove irrelevant data, and identifying potential data. They use a variety of data cleaning techniques to prepare data for manipulation and visualization by Data Scientists.

4) Quality Assurance 

The majority of businesses rely on data to carry out their daily operations. As a result, obtaining high-quality data is critical for increasing organizational productivity. Data Modelling Analysts ensure that the information gathered from various sources is important to the business.

5) Working with Other Teams

Data Modelling Analysts organize data for Data Scientists, Machine Learning Engineers, and other software development teams. They use the data to create Machine Learning-based automated software. Data Analysts collaborate with development teams to impart data-related information.

6) Ongoing Upkeep and Improvement

Datasets are interpreted with Statistical techniques, giving special attention to trends and patterns that could be useful for diagnostic and Predictive Analytics efforts. As an organization’s data assets and business demands evolve, the Data Models are updated and improved on a regular basis. They also play a role in creating executive-level reports that effectively explain trends, patterns, and projections based on pertinent data.

7) Maintaining Data Confidentiality

Data and information are critical resources for any business. So one of the most important tasks of Data Modelling Analysts today is to maintain data and information security.

8) Report Preparation 

Data Modelling Analysts create reports that contain critical information. These reports include Graphs and Charts that depict business-related factors. They aid in the monitoring of business growth by analyzing factors such as Profitability, Market Analysis, Internal Activities, and so on.

9) Troubleshooting

Data Modelling Analysts assist in the troubleshooting of information, reports, and databases.


This article explains the key role and responsibilities of a Data Modelling Analyst. It also explains the Data Model as a flowchart that depicts the connections between Data Elements, Properties, and Attributes. When making Data Modelling decisions, Data Analysis is frequently required, implying that Data Modelling can include some Data Analysis.

It enables Data Management and Analytics teams to define data requirements for Apps and identify problems in development plans prior to writing any code so the analytics combines theory and practice to find and disseminate data-driven insights that help managers, stakeholders, and other executives make better business decisions. In case you want to export data from a source of your choice into your desired Database/destination then Hevo Data is the right choice for you! 

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