Chapter 1: Overview

Building field objects

You build field objects for nested groups the same as for a group, one field object defines the nested group's entire data area, and then one field object defines each element in the nested group.

For the nested group—a^color|size#$c*—where color|size is the nested group contained in element “b” in Figure 1-11, you would build two field objects and modify an existing object as shown in Table 1-3.

**Table 1-3: Nested group field objects**
Field name	Data it defines
nested_grp	This field object already exists as a “member of” the parent group. You modify its options so that it also defines the nested group’s entire data area.
color_element	Defines the color element.
size_element	Defines the size element.

Table 1-4 gives the offset, length, and options settings for these field objects.

**Table 1-4: Nested group field object settings**
Field object	Offset	Length	Option
nested_grp	Follows-fld: a	Separator: $	Select the Member of Group Field Object option and in the related entry field select the field object that defines the parent group. Select the This Field Object Defines a Group option.
color_element	By Value: 0 The first element in the group always has an offset of zero.	Separator: \|	Select the Member of Group Field Object option and select the nested_grp field object in the related entry field.
size_element	Follows-fld: color_element	Separator: #	Select the Member of Group Field Object option and select the nested_grp field object in the related entry field.

Building rule objects for a nested group

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