- In this demo, and in under 4 minutes, we create a complete web application using the OutSystems Platform's visual development environment. We start by defining the database model, user interfaces and business logic without writing any low-level code. Then we automatically deploy the application with 1 click, and immediately test in a browser. This is web development productivity. OutSystems revolutionizes the way IT departments deliver and manage custom web applications that can be changed at the speed of business. The OutSystems Platform is a complete solution for the development, deployment and management of custom enterprise web applications, that takes custom development of web and mobile apps to a whole new level. Learn more about the OutSystems Platform at.