Drivers and Variables Overview
Learn how Model Reef uses drivers and variables to structure your assumptions, power your formulas, and connect every part of your model with clarity and consistency.
Watch: Build Your First Drivers and Variables
Follow these steps to create clean inputs, define assumptions, and understand how variables flow through your entire model.
Step 1: Create Drivers
Step 2: Define Variables
Step 3: Connect to Outputs
See the Difference Instantly
Before Model Reef, assumptions lived in scattered spreadsheets and were hard to track. Now drivers and variables live in one organised layer - clean, consistent and easy to reuse.
| Task | Before Model Reef | After Model Reef |
|---|---|---|
| Define Assumptions | Scattered inputs | Centralised drivers |
| Set Up Variables | Inconsistent formats | Clean, typed variables |
| Connect Logic | Manual linking | Structured relationships |
Your assumptions become the foundation of a cleaner, smarter model.
A Clear Layer for All Your Assumptions
Drivers and variables bring order to your model - keeping assumptions consistent, structured and easy to update as your business changes.
Clarity in decisions
See exactly which inputs drive each part of your model.
Accuracy you can trust
Typed variables and structured drivers prevent errors and inconsistencies.
Speed that saves hours
Update assumptions once and let changes flow everywhere automatically.
Experience the power of structured assumptions.
Keep Learning, Keep Exploring
Every tutorial builds on the last - helping you understand how drivers, variables, formulas and scenarios all connect inside Model Reef. Each new skill makes your model clearer, more flexible and far easier to maintain.
Explore the Features Behind This Workflow
Model Reef gives you a clean, intelligent layer for managing assumptions - helping you model confidently and transparently.
Driver-Based Modelling
Define clean assumptions that can be reused across the entire model.
Real-Time Scenario Analysis
Toggle drivers and instantly compare multiple outcomes.
Real-Time Collaboration
Share assumptions, comment in context and work easily across teams.
Deep Integrations
Blend imported data with custom drivers in a unified assumption layer.
See the features that make assumption management effortless.
Ready to Build With Drivers?
Start your free 14-day trial and experience how clean, structured drivers and variables transform your modelling speed and accuracy.
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