Abstractmagnified imageWe consider the analogy between the topological phase transition which occurs on a surface of a non‐trivial insulator as a function of spatial coordinate, and the phase transition occurring in the bulk due to the change of internal parameters (such as crystal field and spin–orbit coupling). In both cases the system exhibits a Dirac cone, which is the universal manifestation of a topological phase transition, independent of the type of the driving parameters. In particular, this leads to a simple way of determining the topological class – based solely on the bulk information – even for systems where the translational symmetry is broken by atomic disorder or by strong electron correlations. Here we demonstrate this idea, using as an example the zinc‐blende related semiconductors by means of ab‐initio fully‐relativistic band structure calculations, involving the technique of coherent potential approximation (CPA). (© 2013 WILEY‐VCH Verlag GmbH & Co. KGaA, Weinheim)