Dimensional Modeling · Intermediate

Dimensional Modeling for Analytics: From Business Requirements to Star Schema

Design enterprise-ready dimensional data models, analytics, reporting, business intelligence. Course covers business process analysis, fact and dimension tables, grain definition, star and snowflake schemas, slowly changing dimensions, advanced dimensional modeling, and SQL implementation.

Dimensional Modeling for Analytics: From Business Requirements to Star Schema
  • Dimensional modeling is a fundamental skill for building analytical data warehouses and business intelligence solutions.

  • A well-designed dimensional model enables organizations to analyze business performance, identify trends, and make informed decisions.

  • This course provides practical, end-to-end training in dimensional modeling, following established data warehouse design principles.

  • Participants will learn how to translate business requirements into dimensional models, identify business processes, define fact table grain, design dimensions, and build star schemas.

  • The course covers foundational and advanced concepts, including transaction, periodic snapshot and accumulating snapshot fact tables; conformed and role-playing dimensions; slowly changing dimensions; degenerate dimensions; junk dimensions; bridge tables; and multi-fact architectures.

  • Through practical exercises and an integrated business case, participants will design dimensional models, implement them using SQL, and validate their suitability for analytical queries and reporting.

  • The course emphasizes real-world modeling decisions, common design mistakes, data quality considerations, and performance-aware design. Participants will also learn how dimensional models integrate into modern enterprise data platforms such as Snowflake, Azure, Databricks, and traditional relational data warehouses.

Duration
18 hours
Mode
Live online
Next batch
20 Oct 2026
Schedule
Weekday evenings, 5–6:30pm IST

Who it is for

Data Modelers | Data Engineers | Data Architects | ETL Developers | BI Developers | Database Developers | Data Warehouse Professionals

Prerequisites

Required:

  • basic understanding of relational database

  • basic SQL knowledge

  • familiarity with data warehousing and ETL/ELT concepts

  • experience with business reporting or BI tools

  • basic understanding of E-R modeling.

What you will be able to do

  • Analyze business requirements and identify analytical business processes.

  • Define the grain of a fact table and explain its impact on dimensional design.

  • Identify and design fact tables and dimension tables.

  • Build star schemas and understand when snowflake schemas may be appropriate.

  • Design transaction, periodic snapshot, and accumulating snapshot fact tables.

  • Implement slowly changing dimensions (Types 0, 1, 2 and 3).

  • Design conformed, role-playing, junk, degenerate, and other specialized dimensions.

  • Model complex business scenarios involving multiple fact tables and shared dimensions.

  • Translate dimensional designs into physical database tables using SQL.

  • Validate dimensional models against business requirements and analytical queries.

  • Recognize common dimensional modeling mistakes and improve model usability and maintainability.

  • Design an end-to-end dimensional model for a practical business case.

Course contents · 12 modules · 18 hours

01
Introduction to Data Warehousing and Dimensional Modeling

OBJECTIVE:

  • Understand the role of dimensional modeling in modern analytical data platforms

TOPICS:

  • oltp vs. olap systems

  • operational databases vs. analytical databases

  • enterprise data warehouse

  • data mart and lakehouse

  • Introduction to the Kimball methodology

  • Dimensional modeling vs. normalized modeling

  • Star schema vs. snowflake schema

  • Analytical workloads and reporting requirements

  • Overview of modern data warehouse architecture

PRACTICAL ACTIVITY:

  • Examine an operational order-processing database and identify the information required for analytical reporting

ASSESSMENT:

  • Identify the differences between an operational model and an analytical model.

2 h
02
Business Process Analysis and Dimensional Design

OBJECTIVE:

  • convert business requirements into a dimensional modeling design.

TOPICS:

  • business process identification

  • business requirements and analytical questions

  • identifying business events and measures

  • identifying dimensions and descriptive attributes

  • business process matrix

  • dimensional bus architecture

  • identifying shared dimensions

  • translating business requirements into facts and dimensions

PRACTICAL ACTIVITY:

  • analyze a retail business case and prepare a business process matrix covering sales, returns, inventory and payments.

ASSESSMENT:

  • create a preliminary dimensional design from a business requirements document.

2 h
03
Fact Table Design and Grain Definition

OBJECTIVE:

  • design fact tables with the appropriate grain

  • measures and dimensional relationships.

TOPICS:

  • fact table fundamentals

  • defining and documenting fact table grain

  • transaction fact tables

  • periodic snapshot fact tables

  • accumulating snapshot fact tables

  • factless fact tables

  • additive, semi-additive and non-additive measures

  • foreign keys and dimensional relationships

  • multiple facts and different grains

  • common fact table design mistakes

PRACTICAL ACTIVITY:

  • Design sales transaction, monthly inventory snapshot and order fulfillment fact tables.

ASSESSMENT:

  • Document the grain and measures for three different business processes.

2 h
04
Dimension Table Design

OBJECTIVE:

  • design dimensions that provide consistent and meaningful analytical context.

TOPICS:

  • dimension table fundamentals

  • surrogate keys vs. natural keys

  • dimension attributes and hierarchies

  • conformed dimensions

  • role-playing dimensions

  • degenerate dimensions

  • junk dimensions

  • mini-dimensions

  • date and time dimensions

  • handling unknown and not-applicable dimension members.

PRACTICAL ACTIVITY:

  • design customer, product, date, location and sales-channel dimensions.

2 h
05
Star Schema and Snowflake Schema Design

OBJECTIVE:

  • Build complete dimensional schemas and evaluate alternative designs.

TOPICS:

  • star schema architecture

  • snowflake schema architecture

  • fact-to-dimension relationships

  • one-to-many dimensional relationships

  • dimension normalization and denormalization

  • shared dimensions across business processes

  • multiple fact tables

  • multi-star and constellation schemas

  • schema design trade-offs

  • designing schemas for BI consumption.

PRACTICAL ACTIVITY:

  • Convert a business requirements model into a star schema and compare it with a snowflake alternative.

ASSESSMENT:

  • Produce a logical star schema diagram and justify its design decisions.

2 h
06
Slowly Changing Dimensions (SCD)

OBJECTIVE:

  • Implement historical tracking of changes in dimensional attributes.

TOPICS:

  • why dimensional attributes change

  • SCD type 0: Retain original value

  • SCD type 1: overwrite

  • SCD type 2: historical versioning

  • SCD type 3: previous value

  • effective dates and expiration dates

  • current record indicators

  • surrogate key management

  • late-arriving dimension records

  • historical fact association

  • SQL implementation of SCD Type 1 and Type 2

PRACTICAL ACTIVITY:

  • implement customer and product dimension changes using SQL.

ASSESSMENT:

  • design an SCD Type 2 dimension and write SQL to process new and changed records.

2 h
07
Advanced Dimensional Modeling Techniques

OBJECTIVE:

  • address complex business requirements using advanced dimensional modeling patterns.

TOPICS:

  • multiple fact tables with shared dimensions

  • header and line-level transaction facts

  • bridge tables for many-to-many relationships

  • multivalued dimensions

  • allocating measures across bridge relationships

  • hierarchical dimensions

  • ragged and variable-depth hierarchies

  • parent-child relationships

  • snapshot facts with changing dimensional relationships

  • handling multiple currencies and units of measure

PRACTICAL ACTIVITY:

  • design a banking or investment model with customers, accounts, transactions and joint account holders.

ASSESSMENT:

  • solve a many-to-many dimensional modeling scenario using a bridge table.

2 h
08
Date, Time and Advanced Fact Modeling

OBJECTIVE:

  • Model time-dependent business processes and complex measures.

TOPICS:

  • date dimension design

  • multiple date roles in a fact table

  • business calendars and fiscal calendars

  • event-based and periodic measurements

  • accumulating snapshots and milestone dates

  • inventory and account balance snapshots

  • semi-additive balances

  • fact table partitioning considerations

  • late-arriving facts and dimensions

  • handling corrections and restatements

PRACTICAL ACTIVITY:

  • model an order lifecycle with order, shipment, delivery and payment milestones.

ASSESSMENT:

  • design an accumulating snapshot fact table and demonstrate its analytical use.

2 h
09
Physical Dimensional Modeling and SQL Implementation

OBJECTIVE:

  • Translate logical dimensional designs into implementable database structures.

TOPICS:

  • logical vs. physical dimensional models

  • naming standards and data types

  • primary keys and foreign keys

  • creating fact and dimension tables using SQL

  • surrogate key generation

  • loading dimensions and facts

  • referential integrity and data quality

  • incremental loading concepts

  • SQL joins between fact and dimension tables

  • query patterns for analytical reporting.

PRACTICAL ACTIVITY:

  • Implement a sales star schema using SQL and populate sample data.

ASSESSMENT:

  • Create the physical schema and execute analytical queries against it.

2 h
10
Dimensional Modeling for Modern Data Platforms

OBJECTIVE:

  • Understand how dimensional models are implemented in modern cloud data platforms.

TOPICS:

  • dimensional modeling in Snowflake

  • dimensional modeling in Azure and Microsoft Fabric

  • dimensional modeling in Databricks and Delta Lake

  • data warehouse vs. lakehouse implementation

  • data quality and reconciliation

  • performance considerations for analytical workloads

  • partitioning, clustering and indexing concepts

  • BI semantic models and dimensional relationships.

PRACTICAL ACTIVITY:

  • review the implementation of a star schema in a cloud data warehouse and write analytical SQL queries.

ASSESSMENT:

  • identify implementation considerations for deploying a dimensional model on a selected platform.

2 h
11
Dimensional Model Validation and Optimization

OBJECTIVE:

  • Validate dimensional models and improve their suitability for reporting and analytics.

TOPICS:

  • reviewing the business process matrix

  • grain consistency and dimensional conformance

  • fact and dimension validation

  • referential integrity checks

  • handling duplicate and missing dimension members

  • aggregation correctness

  • query performance analysis

  • avoiding double counting

  • model usability for BI developers

  • common dimensional modeling anti-patterns.

PRACTICAL ACTIVITY:

  • Review a deliberately flawed dimensional model, identify design issues and correct them.

ASSESSMENT:

  • Complete a dimensional model review checklist and demonstrate the corrected design.

2 h
12
End-to-End Dimensional Modeling Project

OBJECTIVE:

  • Apply the complete dimensional modeling lifecycle to a realistic business scenario.

TOPICS:

  • business requirements analysis

  • business process identification

  • fact grain definition

  • dimension and measure identification

  • star schema design

  • SCD strategy selection

  • physical model creation

  • analytical SQL and reporting validation

  • model documentation and presentation

PRACTICAL ACTIVITY:

  • design a dimensional data warehouse for a retail, banking or logistics business case.

FINAL ASSESSMENT:

  • submit and present a complete dimensional model, including business process matrix, schema diagram, table specifications and sample analytical queries.

2 h

Hands-on approach

30% concepts, 70% hands-on labs on realistic business scenarios. AI practice support between sessions; every project is reviewed by the trainer.