Multiple Criteria Hierarchy Process for ELECTRE Tri methods.

•ELECTRE Tri methods help solving multiple criteria sorting problems.•We extend the ELECTRE Tri methods to take into account a hierarchical structure of the set of criteria.•The Multiple Criteria Hierarchy Process is applied in conjunction with the ELECTRE Tri methods.•An extension of the Simos–Roy–Figueira (SRF) method is proposed to compute the weights of criteria.•A didactic example shows the applicability of the proposed methodology to real world decision problems.