OABuilder

Model-Driven Architecture (MDA) meets Event-Driven Architecture (EDA)

OABuilder empowers teams to design their systems using Model-Driven Architecture principles. Every object, property, relationship, rule, and trigger is visually defined and becomes part of a live, event-aware model.

Visual Modeling: Your Domain as Blueprints

With OABuilder, your domain model becomes the single source of truth. The application is generated from this model using OACodeGen — powered by the OAObjectGraph, and remains in sync as the model evolves.

The model serves as the abstraction layer above software code. It's metadata-rich and designed to produce smart objects , with built-in support for observability, relationships, validation, security, and event-driven behavior. This allows developers to focus on business rules and logic while OA handles the complexity of implementation, wiring, and consistency across the full stack.

• Objects, properties, and relationships/references/links
• Calculated fields, triggers, and validation rules
• Security, visibility, and workflow logic
• database persistence
• UI (web, desktop)
• REST, webservices
• And more

Download OABuilder

OABuilder is available for free on GitHub:

🔗 github.com/ViaOA/oabuilder-run