The relcell element defines a cell in the relationship table (reltable). The topicref elements that it contains are related to the topicref elements in other cells of the same row. By default, topics or resources that are referenced in the same cell are not related to each other, unless you change the collection-type attribute of the relcell to indicate that they are related.
See appendix for information about this element in OASIS document type shells.
The following attributes are available on this element: Universal attribute group, Attributes common to many map elements (without keyscope attribute), and outputclass. This element also uses type, scope, and format from Link relationship attribute group.