uBenefits
ulatter steps can be performed
on preliminary results (e.g. formatters for presentation view)
uusing the same filters in
multiple process phases
uunique and constant data
access path througout the process
uimprovements in the process do
not require new DTD
uonly one DTD to manage
uDrawbacks
udata model for each
process phase
must be
defined outside of the DTD
uactually no formal method
available