Technical Foundation
FinanceModel is built on a layered architecture. Each layer has a single responsibility. Together, they enable powerful, extensible financial modeling.
Web-based interface. Model designer, input forms, dashboards, and result viewers. Built with React and optimized for real-time interaction.
The calculation engine. Processes inputs through defined model logic to produce outputs. Deterministic, testable, and fully auditable.
Executes calculations
Maps calculations
Ensures data integrity
Structured persistence. Stores assumptions, inputs, calculation results, and audit trails. Supports versioning and change tracking.
Versioned assumptions
Model parameters
Complete change log
Custom extensions, third-party integrations, and specialty calculators. Currently in development.
The user-facing interface. Clean, intuitive, and purpose-built for financial modeling—not adapting spreadsheet metaphors to the web.
Visual, intuitive interface for defining model structure. Drag and drop assumptions, set up calculations, define outputs.
Type-safe forms for entering assumptions. Auto-complete, validation, and intelligent defaults.
Multiple ways to explore outputs. Tables, charts, waterfall analysis, and sensitivity viewers.
Real-time awareness, comments, version history, and change notifications.
The heart of the system. Where calculations happen, dependencies are managed, and outputs are derived from inputs.
Deterministic, reproducible computation. No randomness, no side effects, no magic.
Maps how calculations relate to each other. Enables smart recalculation and dependency analysis.
Custom rules ensure data integrity. Range checks, formula validations, and business logic enforcement.
Clear error messages when calculations fail. Explains what went wrong and why.
Persistence and state management. Stores models, assumptions, inputs, and complete audit trails.
Central store for all model assumptions. Versioned, searchable, and fully audited.
Tracks user inputs, scenarios, and historical values. Enables comparisons and what-if analysis.
Complete record of who changed what, when, and why. Immutable and searchable.
Stores computed outputs for fast retrieval. Invalidates intelligently on input changes.
Each layer has a clear responsibility. Presentation doesn't care about calculations. Calculations don't depend on the UI. Data is independent of logic.
Same inputs always produce same outputs. No random numbers, no time-dependent behavior, no hidden state. This is crucial for financial models.
Every calculation, every input change, every assumption update is logged. You can always trace how a result was derived.
Start with core features. Add advanced analytics, integrations, and plugins as the platform matures. Foundation doesn't change.
You own your models, your data, your logic. FinanceModel is a tool you control, not a black box you depend on.