When you are working on a Web application you have to consider both the user interaction and the application behavior executed when the user triggers an action. The application behavior can be any kind of business logic you may need to express.
WebRatio Platform provides you with a set of componen...
In a Web application, you often need to manage information that is shown to the user. Managing the information means to create, update, or delete information. With WebRatio Platform you can easily model an administration section so that the Web Application user can manage the application data.
In t...
When you are working on a new Web application there is a set of common requirements that you are going to implement many times. In IFML lessons you learned how to model several commonly recurring requirements focused on the user interaction.
Recurring requirements comprehend how to publish and ma...
WebRatio Platform lets you define graphic containers for content shown to the user. These containers can be reused for many projects and applied to different type of content. This is possible thanks to the ability to create a dedicated resource containing the graphic container code. This resource is...
WebRatio Platform provides you with a set of predefined elements that allow you to model around 90% of the features that are commonly needed by a Web application. However, the remaining 10% may require custom business logic, or integration with a specific external system.
Although it is not possibl...
“Single sign-on (SSO) is a property of access control of multiple related, but independent, software systems. With this property a user logs in once and gains access to all systems without being prompted to log in again at each of them.” (source Wikipedia).
WebRatio allows you to enable the single ...
When you are testing a feature of your Web application, you may face some problems that prevent the feature from working properly. Using the "Application Logs" is the best way to understand what’s going on, find out the root cause of the undesired behavior and eventually understand which part of the...
To get the Web Application from your Web Project, you have to generate it. When a project is generated, the Application Server loads the corresponding Web Application. WebRatio uses Apache Tomcat as the default Application Server Apache.
Tomcat implements the JavaServer Pages (JSP) and Sun Microsys...
Debugging is a fundamental tool for developing a reliable Web application. In the standard debugging approach, every time a problem arises or whenever you want to investigate the behavior of your application, you can easily debug it by placing breakpoints in your lines of code.
Debugging with WebRa...
This lesson gives you the basic knowledge required to define reusable portions of IFML models using the module and module definition concepts.
Working on real-world Web applications may require modeling a large project. In this situation it’s important to be able to manage the project to avoid loss...
This lesson gives you the basic knowledge required to define common content in an IFML Model through the "Master Page" concept.
Working on real-world Web applications may require modeling a large project. In this situation it’s important to be able to manage the project to avoid loss of control and...
In Apache Tomcat, the Manager element represents the session manager that will be used to create and maintain HTTP sessions as requested by the associated Web Application.
Read this article to know how to disable the Persistent Session Management in any Tomcat installation.
WebRatio Platform gives you the chance to add a Captcha control to the forms of your Web Project.
Read this article to know more about the Captcha control.
The Connect Operation is an operation used to enable the association between instances of two entities (the source entity and the target entity), connected by a specific relationship role.
This article guides you to the usage of the Connect showing also a working example.
The Disconnect Operation is an operation used to delete the association between instances of two entities (the source entity and the target entity), connected by a predefined relationship role.
This article guides you to the usage of the Disconnect showing also a working example.