Merge branch 'master' of https://github.com/ReCodEx/wiki.wiki

Rewritten-docs.md

@@ -663,7 +663,35 @@ state.
 
 ### Results of evaluation
 
-@todo: how to display generally all outputs of executed programs to user (supervisor, student), what students can or cannot see and why
+There are lot of things which deserves discussion concerning results of
+evaluation, how they should be displayed, what should be visible or not and also
+some what kind of reward for users solutions should be chosen.
+
+At first lets focus on all kinds of outputs from executed programs within job.
+Out of discussion is that supervisors should be able to view almost all outputs
+from solutions if they choose them to be visible and recorded. This feature is
+critical in debugging either whole exercises or users solutions. But should it
+be default behaviour to record every output? Absolutely not, supervisor should
+have choice to turn it on but defaults has to be not record it. Even without
+this functionality can be file base around whole ReCodEx system quite large and
+on top of that outputs from executed programs can be sometimes very extensive.
+Storing this amount of data is purely nonsense to every solution. But if
+requested by supervisor then this feature should be available.
+
+Question what should regular users see from execution of their solution is more
+interesting. Simple answer is of course that they should not see anything which
+is partly true. Outputs from their programs can be anything and users can
+somehow analyse inputs or even redirect them to output. So outputs from
+execution should not be visible at all or under very special circumstances. But
+what about compilation or other kinds of initiations. Well, this is another
+story, it really depends on the particular case. But generally it is quite
+harmless to display user some kind of compilation error which can help a lot
+during troubleshooting. Of course again this kind of functionality should be
+configurable by supervisors and disabled by default. There is also the last kind
+of tasks which can output some information which is evaluation tasks. Output of
+these tasks is somehow important to whole system and again can contain some
+information about inputs or reference outputs. So outputs of evaluation tasks
+should not also be visible to regular users.
 
 @todo: discuss points assigned to solution, why are there bonus points, explain minimal point threshold