A web application is made up of a number of web HTML pages. An HTML web page is represented by a 
Page.
A Page can only be created inside a 
Form. A Form can contain any number of Pages.
A new Form can be created by right-clicking on a location in the Entities tree and selecting New > Form in the context menu. An initial Page is automatically added to a new Form.
A Form provides the data for its Pages, represented as 
Fields and 
Tables. As a consequence of this, it is recommended that Pages that interact with the same data are added to the same Form. Examples include the various Pages of an online insurance policy an end-user needs to fill in and the Pages of a payment process.
Double-clicking on a Form in the Entities tree opens the Form Editor. Here you can build the content of it's Pages using Controls from the 
Palatte.
Forms
are the central entities in Verj.io and each Form has a unique URL.
You can test a Form at any point by clicking the 
Run button at the top of the Form Editor, which opens its Pages in a browser.