The author may publish his/her LNCS contribution on his/her personal Web page provided that he/she creates a link to the containing volume of LNCS at the Springer-Verlag server or to the LNCS series Homepage (URL: In the case of a contribution to a Springer journal, such as Requirements Engineering, the author must create a link to the containing issue of the journal, accessible via Together with this electronic version it is clearly pointed out, by prominently adding ``(c) Springer-Verlag'' that the copyright for this contribution is held by Springer. From the Publisher's point of view, it would be desirable that the full-text version be made available from the Author's Web page only after a delay of 12 months following the publication of the book, whereas such a delay is not required for the abstract.