# Instance Mapping page

This page shows attributes and other data for one AIM instance in ARM concept. AIM instancerepresentation in physical file format are shown first. Alternative view of this instance are below. The current view are showing one. If you want to change current view you need to choose preferred one from combo box and press 'Change' button.

## Attributes

After that all attributes grouped by ARM entity data types are listed. ARM entitydata types order are the same as inheritance. From top to bottom. For complexentity data types and multiple inheritance it is more complicated. Attributesorder are as originally was written in EXPRESS file. For every instance thereis four fields in one line. First one is the name of attribute, no operationson this field available. Second one is the type of attribute. The type writingis same as in EXPRESS. You can click on this type filed to see the detailof it. The third field is attribute value with plus and minus buttons foroperations. If attribute is mapped in several different ways then all these alternative attributes are listed in following combo box. You will see values of these alternatives by changing selected alternative. At the beginning set one if such exist is selected. Second and third fields are separated with split, so you can enlarge attributevalue view. With plus button you can set value from sdai clipboard for entitytype and with minus button you can unset value for all attributes. Fourthfield is for showing is attribute set or not. If '$' mark is present at the end then attribute is unset else attribute is set even if no value appear(set with empty string).

## Inverses

Here is listed all instances (ARM type and AIM instance pair) from which this instance is referenced. First column 'Source definition' shows from which ARM type and its attribute this instance if referenced and second 'Target instance' is AIM instance. If youare working on schema instance domain then all inverses from this domainwill be listed here.

## Button line

With 'Edit' button you can go to edit mode, than you will be able to edit attributes. 'Accept' and 'Cancel' will accept or cancel your changes. When you will be in edit mode you will not be allowed go to other pages before accepting or canceling changes.