Top 20 Reltio MDM Interview Questions & Answers

Posted by Support@InventModel.com Posted by Nov 17, 2025 in Reltio MDM Training

1. What is Reltio?

Reltio is a cloud-native Master Data Management (MDM) platform built for scale, real-time processing, and connected customer experiences. It uses a graph-based big data architecture and provides SaaS delivery.

2. What is the Reltio Data Model (L3 model)?

The L3 model defines the configuration of entities, attributes, relationships, match/merge rules, crosswalks, and survivorship. It is JSON-based and fully customizable.

3. What are Entities in Reltio?

Entities represent real-world objects like Customer, Product, Supplier, Location. Each entity has attributes and crosswalks from multiple source systems.

4. What are Crosswalks? Why are they important?

Crosswalks store source-specific values and metadata, such as source name, last update date, trust, and lineage. This helps Reltio maintain traceability and calculate survivorship.

5. What is Survivorship in Reltio MDM?

Survivorship decides which attribute value appears in the golden record. It is based on:

  • Source priority

  • Recency

  • Frequency

  • Trust score

  • Custom rules

6. Explain Match Rule Types.

Reltio offers:

  • Exact Match

  • Fuzzy Match (similarity-based)

  • Rule-based Match

  • Configurable Match Rules (L3)

  • ML-based Match (optional)

7. What is the difference between Match and Merge?

  • Match → Identifies duplicate records using match rules

  • Merge → Combines matched records into one golden profile using merge rules & survivorship

8. What is an Attribute vs. a Relationship?

  • Attributes describe entity properties (Name, Email).

  • Relationships connect entities (Customer–Address, Product–Supplier).

9. What are Interactions in Reltio?

Interactions are events or activities linked to entities, like orders, logins, tickets. They help build behavioral and 360-degree profiles.

10. What is Reference Data Management (RDM)?

RDM manages standardized lists like country codes, statuses, product categories. Provides versioning, mapping, and governance across systems.

11. How does Reltio handle data ingestion?

Data can be ingested through:

  • REST APIs

  • Reltio Integration Hub

  • Batch ingestion (CSV/flat files)

  • Streaming (Kafka)

  • Connectors (Salesforce, SAP, Marketo)

12. What is the Reltio Cleanse & Standardization framework?

It uses data quality services to standardize data such as:

  • Address validation

  • Phone/email formatting

  • Data type validation

  • Deduplication pre-processing

13. Explain Reltio Workflow.

Workflow enables task approvals, data steward reviews, and business process automation. Built using BPM-based workflow designs.

14. What is the difference between Operational MDM and Analytical MDM?

Reltio is Operational MDM: real-time updates, APIs, interactions.
Analytical MDM is usually for BI reporting and slow-changing data.

15. What is Reltio Analytics?

Provides:

  • Search-based analytics

  • Data quality dashboards

  • Match/merge insights

  • Attribute completeness reports

16. What is Reltio UI vs Reltio API?

  • UI → Data steward dashboard for profiles, duplicates, tasks

  • API → CRUD operations, ingestion, search, and integration

17. What is a Tenant in Reltio?

A tenant is an isolated environment with its own configuration, data model, storage, and users. Usually separated into DEV, QA, PROD tenants.

18. What are Graph Relationships in Reltio?

Reltio uses a graph database model, enabling fast traversal and deep relationships between entities – useful for customer 360 and hierarchy management.

19. How does Reltio support multi-domain MDM?

Supports multiple domains—Customer, Product, Supplier, Employee—within a single tenant using distinct entity types and relationships.

20. How do you integrate Reltio with external systems?

Integration options:

  • API-based real-time sync

  • Reltio Integration Hub flows

  • Streaming pipelines

  • Batch processing

  • Standard connectors

  • Export jobs to cloud storage

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