Browse Sequence in Online Help  

A browse sequence enables users to navigate through a series of help topics in the sequence established by the help author. Although often omitted from help systems, the browse sequence is useful and will become essential as print documentation diminishes. Effective design options for a browse sequence include multiple segments, rings, branching, and the use of a browse button to take the user to the first topic in the current segment of the browse sequence.

Farkas, David K. and Bruce R. Gibbs. STC Proceedings (1994). Articles>Documentation>Online>Help