Learn OUTSYSTEMS with Real Code Examples
Updated Nov 26, 2025
Explain
Allows developers to build applications via visual modeling.
Supports full-stack development including front-end, back-end, and database.
Includes tools for workflow automation, integrations, and business logic.
Provides built-in deployment pipelines and DevOps features.
Accelerates enterprise application delivery while reducing manual coding.
Core Features
Reactive Web Apps - modern responsive web apps
Mobile Apps - native and hybrid mobile applications
Integrations - connectors to external systems and APIs
Business Logic - workflows, processes, and rules
Deployment & Monitoring - one-click deployment and analytics
Basic Concepts Overview
Modules - reusable building blocks
Entities - data structures and database tables
Screens - visual UI components
Actions - server-side and client-side logic
Flows - workflows and business processes
Project Structure
Modules/ - individual apps or features
Entities/ - database models
UI/ - screens and templates
Logic/ - actions and workflows
Integrations/ - API connectors and services
Building Workflow
Model database entities
Design screens with drag-and-drop UI
Add server and client actions
Integrate with APIs and external services
Deploy and monitor application lifecycle
Difficulty Use Cases
Beginner: internal dashboards
Intermediate: mobile apps with APIs
Advanced: enterprise workflow automation
Expert: complex integrations with external systems
Architect: multi-module enterprise app with DevOps pipeline
Comparisons
OutSystems vs Mendix: similar low-code platform, OutSystems more enterprise-focused.
OutSystems vs Power Apps: OutSystems offers full-stack dev; Power Apps focuses on Microsoft ecosystem.
OutSystems vs Appian: OutSystems stronger in mobile/web dev flexibility.
OutSystems vs Traditional coding: faster development, less flexibility.
OutSystems vs Salesforce Lightning: OutSystems platform-agnostic; Lightning tied to Salesforce.
Versioning Timeline
2001 - Founded by Paulo Rosado in Portugal
2005 - Early platform releases with rapid dev tools
2010 - Added mobile app support
2015 - Cloud deployment options introduced
2020 - AI-assisted development added
2025 - Current stable enterprise-ready version
Glossary
Module - container for app functionality
Entity - database structure
Screen - user interface page
Action - logic execution unit
Forge - library of reusable components