  The paper addresses the modular design of composite solving strategies for
multicriteria ranking (sorting). Here a 'scale of creativity' that is close to
creative levels proposed by Altshuller is used as the reference viewpoint: (i)
a basic object, (ii) a selected object, (iii) a modified object, and (iv) a
designed object (e.g., composition of object components). These levels maybe
used in various parts of decision support systems (DSS) (e.g., information,
operations, user). The paper focuses on the more creative above-mentioned level
(i.e., composition or combinatorial synthesis) for the operational part (i.e.,
composite solving strategy). This is important for a search/exploration mode of
decision making process with usage of various procedures and techniques and
analysis/integration of obtained results. The paper describes methodological
issues of decision technology and synthesis of composite strategy for
multicriteria ranking. The synthesis of composite strategies is based on
'hierarchical morphological multicriteria design' (HMMD) which is based on
selection and combination of design alternatives (DAs) (here: local procedures
or techniques) while taking into account their quality and quality of their
interconnections (IC). A new version of HMMD with interval multiset estimates
for DAs is used. The operational environment of DSS COMBI for multicriteria
ranking, consisting of a morphology of local procedures or techniques (as
design alternatives DAs), is examined as a basic one.
