Adjusting the ττ-argus modular approach to deal with linked tables

The software package ττ-argus offers a very efficient algorithm for secondary cell suppression known as either HiTaS or the modular approach. The method is well suited for the protection of up to 3-dimensional hierarchical tables. In practice, statistical agencies release multiple tabulations based on the same dataset. Usually these tables are linked through certain linear constraints. In such a case cell suppressions must obviously be coordinated between tables. In this paper we investigate into the possibilities for an extension of the modular approach to deal with linked tables.