(1) Simple parameter data

The simple parameter data are provided in a form of association list for the full parameter generator. The simple parameter data are default values for a typical composition style. If necessary, some parameter data can be added to the simple parameter data.

(2) Full parameter generator

Full parameter generator creates, on a Scheme processor, full parameters being based on the simple parameter data.

(3) Function set

The function set includes DSSSL flow object generating functions and their support functions used in the construction rules in DSSSL specifications. The full parameters are referred to by those functions.

(4) Page model set

The page models are DSSSL descriptions of page styles. The full parameters are referred to by those page models.

(5) Flow object construction rules

The construction rules provide actual DSSSL specifications for a specific DTD, using the full parameters, function set and page model set.