  The present paper comes across the main steps that laid from Zadeh's
fuzziness ana Atanassov's intuitionistic fuzzy sets to Smarandache's
indeterminacy and to Molodstov's soft sets. Two hybrid methods for assessment
and decision making respectively under fuzzy conditions are also presented
through suitable examples that use soft sets and real intervals as tools. The
decision making method improves an earlier method of Maji et al. Further, it is
described how the concept of topological space, the most general category of
mathematical spaces, can be extended to fuzzy structures and how to generalize
the fundamental mathematical concepts of limit, continuity compactness and
Hausdorff space within such kind of structures. In particular, fuzzy and soft
topological spaces are defined and examples are given to illustrate these
generalizations.
