  This paper deals with an extended model of computations which uses the
parameterized families of entities for data objects and reflects a preliminary
outline of this problem. Some topics are selected out, briefly analyzed and
arranged to cover a general problem. The authors intended more to discuss the
particular topics, their interconnection and computational meaning as a panel
proposal, so that this paper is not yet to be evaluated as a closed journal
paper. To save space all the technical and implementation features are left for
the future paper.
  Data object is a schematic entity and modelled by the partial function. A
notion of type is extended by the variable domains which depend on events and
types. A variable domain is built from the potential and schematic individuals
and generates the valid families of types depending on a sequence of events.
Each valid type consists of the actual individuals which are actual relatively
the event or script. In case when a type depends on the script then
corresponding view for data objects is attached, otherwise a snapshot is
generated. The type thus determined gives an upper range for typed variables so
that the local ranges are event driven resulting is the families of actual
individuals. An expressive power of the query language is extended using the
extensional and intentional relations.
