Therefore we propose to study the questions listed below. To our knowledge they are still open. We shall be happy to hear any news and comments from you. List of open questions and problems 1. I believe that YES, we really need both ways of module's construction.
Similar experience is witnessed by BETA project.
Still, one may doubt whether a consistent semantics of a language that admits both multiple inheritance and nesting exists. The experience of Loglan'82 witnesses that usual objects and process objects may coexist. We imagine that the system created by A. Kreczmar may be easily cloned in order to manage persistent objects. Is it possible to use the mechanisms of classes, inheritance etc. We imagine that it would be much better to use inheritance etc.