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About the test:

The data modeling skills test evaluates a candidate's understanding of data modeling techniques, entity-relationship model, database lifecycle, OLTP, OLAP and data modeling standards using scenario based questions.

Covered skills:

  • Data Models
  • Normalization
  • Table
  • Denormalization
See all covered skills

9 reasons why
9 reasons why

Adaface Data Modeling Skills Test is the most accurate way to shortlist candidates

Reason #1

Tests for on-the-job skills

The Data Modeling Test helps recruiters and hiring managers identify qualified candidates from a pool of resumes, and helps in taking objective hiring decisions. It reduces the administrative overhead of interviewing too many candidates and saves time by filtering out unqualified candidates.

The Adaface Data Modeling Online Test screens candidates for the typical skills recruiters look for Data Modeler roles:

  • Experience in an enterprise environment developing relational databases
  • Strong analytical, data profiling and problem-solving skills
  • Knowledge of facilitation and conflict resolution processes
  • Experience developing models for Business Intelligence solutions

The insights generated from this assessment can be used by recruiters and hiring managers to identify the best candidates for Data Modeler roles. Anti-cheating features enable you to be comfortable with conducting assessments online. The Data Modeling Online Test is ideal for helping recruiters identify which candidates have the skills to do well on the job.

Reason #2

No trick questions

no trick questions

Traditional assessment tools use trick questions and puzzles for the screening, which creates a lot of frustration among candidates about having to go through irrelevant screening assessments.

The main reason we started Adaface is that traditional pre-employment assessment platforms are not a fair way for companies to evaluate candidates. At Adaface, our mission is to help companies find great candidates by assessing on-the-job skills required for a role.

Why we started Adaface ->
Reason #3

Non-googleable questions

We have a very high focus on the quality of questions that test for on-the-job skills. Every question is non-googleable and we have a very high bar for the level of subject matter experts we onboard to create these questions. We have crawlers to check if any of the questions are leaked online. If/ when a question gets leaked, we get an alert. We change the question for you & let you know.

These are just a small sample from our library of 10,000+ questions. The actual questions on this Data Modeling Skills Test will be non-googleable.

🧐 Question


ER Diagram and minimum tables
ER Diagram
Look at the given ER diagram. What do you think is the least number of tables we would need to represent M, N, P, R1 and R2?
🧐 Question🔧 Skill


ER Diagram and minimum tables
ER Diagram
2 mins
Data Modeling
🧐 Question🔧 Skill💪 Difficulty⌛ Time
ER Diagram and minimum tables
ER Diagram
Data Modeling
Hard2 mins
Reason #4

1200+ customers in 75 countries

customers in 75 countries

With Adaface, we were able to optimise our initial screening process by upwards of 75%, freeing up precious time for both hiring managers and our talent acquisition team alike!

Brandon Lee, Head of People, Love, Bonito

Reason #5

Designed for elimination, not selection

The most important thing while implementing the pre-employment Data Modeling Skills Test in your hiring process is that it is an elimination tool, not a selection tool. In other words: you want to use the test to eliminate the candidates who do poorly on the test, not to select the candidates who come out at the top. While they are super valuable, pre-employment tests do not paint the entire picture of a candidate’s abilities, knowledge, and motivations. Multiple easy questions are more predictive of a candidate's ability than fewer hard questions. Harder questions are often "trick" based questions, which do not provide any meaningful signal about the candidate's skillset.

Reason #6

1 click candidate invites

Email invites: You can send candidates an email invite to the Data Modeling Skills Test from your dashboard by entering their email address.

Public link: You can create a public link for each test that you can share with candidates.

API or integrations: You can invite candidates directly from your ATS by using our pre-built integrations with popular ATS systems or building a custom integration with your in-house ATS.

invite candidates
Reason #7

Detailed scorecards & benchmarks

Reason #8

High completion rate

Adaface tests are conversational, low-stress, and take just 25-40 mins to complete.

This is why Adaface has the highest test-completion rate (86%), which is more than 2x better than traditional assessments.

test completion rate
Reason #9

Advanced Proctoring

About Data Modeler Roles

The process of generating a simplified representation of a software system and the data pieces using text and symbols to represent the data and how it flows is known as data modelling. Data models serve as a blueprint for creating a new database or reengineering an existing one.

A Data Modeler are in charge of creating data models. They convert business information into models by interacting with business customers and seeking their needs, then iteratively refining the conceptual, logical, and physical data models.

Typical Data Modeler responsibilities include:

  • Engaging the business users to assess their information needs
  • Developing logical data models and validate the models
  • Transforming logical representation of the models into a physical representation
  • Collaborating with BI and Analytics teams on creating the optimized, reusable semantic models, complete with metadata and lineage information

What topics are covered in the Data Modeling Skills Test?

Data Models

Entity Relationship Diagram

Surrogate Key
Relationship Types
Enterprise Data Model
Design Schemas
Slowly Changing Dimension
Data Mart
Data Sparsity
Subtype Entities
Supertype Entities
Forwarding Engineering
Reverse Engineering
Recursive Relationships
Confirmed Dimension
NoSQL Databases
Junk Dimension
Singapore government logo

The hiring managers felt that through the technical questions that they asked during the panel interviews, they were able to tell which candidates had better scores, and differentiated with those who did not score as well. They are highly satisfied with the quality of candidates shortlisted with the Adaface screening.

reduction in screening time


Can I combine multiple skills into one custom assessment?

Yes, absolutely. Custom assessments are set up based on your job description, and will include questions on all must-have skills you specify.

Do you have any anti-cheating or proctoring features in place?

We have the following anti-cheating features in place:

  • Non-googleable questions
  • IP proctoring
  • Web proctoring
  • Webcam proctoring
  • Plagiarism detection
  • Secure browser

Read more about the proctoring features.

How do I interpret test scores?

The primary thing to keep in mind is that an assessment is an elimination tool, not a selection tool. A skills assessment is optimized to help you eliminate candidates who are not technically qualified for the role, it is not optimized to help you find the best candidate for the role. So the ideal way to use an assessment is to decide a threshold score (typically 55%, we help you benchmark) and invite all candidates who score above the threshold for the next rounds of interview.

What experience level can I use this test for?

Each Adaface assessment is customized to your job description/ ideal candidate persona (our subject matter experts will pick the right questions for your assessment from our library of 10000+ questions). This assessment can be customized for any experience level.

Does every candidate get the same questions?

Yes, it makes it much easier for you to compare candidates. Options for MCQ questions and the order of questions are randomized. We have anti-cheating/ proctoring features in place. In our enterprise plan, we also have the option to create multiple versions of the same assessment with questions of similar difficulty levels.

I'm a candidate. Can I try a practice test?

No. Unfortunately, we do not support practice tests at the moment. However, you can use our sample questions for practice.

What is the cost of using this test?

You can check out our pricing plans.

Can I get a free trial?

Yes, you can sign up for free and preview this test.

I just moved to a paid plan. How can I request a custom assessment?

Here is a quick guide on how to request a custom assessment on Adaface.

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40 min tests.
No trick questions.
Accurate shortlisting.
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