  Quantum Measurements regarded in Systems Selfdescription framework for
measuring system (MS) consist of measured state S environment E and observer
$O$ processing input S signal.
  $O$ regarded as quantum object which interaction with S,E obeys to
Schrodinger equation (SE) and from it and Breuer selfdescription formalism S
information for $O$ reconstructed. In particular S state collapse obtained if
$O$ selfdescription state has the dual structure $L_T=\cal H \bigotimes L_V$
where $\cal H$ is Hilbert space of MS states $\Psi_{MS}$. $\cal L_V$ is the set
with elements $V^O=|O_j> < O_j|$ describing random 'pointer' outcomes $O_j$
observed by $O$ in the individual events. The 'preferred' basis $|O_j>$ defined
by $O$ state decoherence via $O$ - E interactions. Zurek's Existential
Interpretation discussed in selfmeasurement framework.
