IO Operations are Input and Output Operations. This means that the following commands are created in order to allow the end user to provide and retrieve information to and from the system.
FORMS allow the model developer to insert QUESTION and ANSWER screens (forms) that are shown to the end user. A FORM has several options that come along with it. It is possible to add identification to a FORM, to add questions to a FORM and to add a TEXT BLOCK to a FORM. Within a FORM it is possible to group your FORM content, to add a button, to close a FORM, and to provide default answers and validation.
The operation INTERACT is quite similar to this FORM operation and is meant to be used in ITP Models that will be run by ITP/Workstation.
The operation EXTRA gives you the possibility to add Extra variables, which are used to integrate ITP Model runs in applications and with the operation WIZARD you can present the user with a Content Wizard, wherein Sections and Text Blocks can be selected.
The operation STOP will stop the execution of the model and all the hitherto produced text will be placed in the result document and can be interpreted as a jump to the end of the model.