  The paper addresses combinatorial approach to design of modular wireless
sensor as composition of the sensor element from its component alternatives and
aggregation of the obtained solutions into a resultant aggregated solution. A
hierarchical model is used for the wireless sensor element. The solving process
consists of three stages: (i) multicriteria ranking of design alternatives for
system components/parts, (ii) composing the selected design alternatives into
composite solution(s) while taking into account ordinal quality of the design
alternatives above and their compatibility (this stage is based on Hierarchical
Morphological Multicriteria Design - HMMD), and (iii) aggregation of the
obtained composite solutions into a resultant aggregated solution(s). A
numerical example describes the problem structuring and solving processes for
modular alarm wireless sensor element.
