The importance of mathematical problem posing has been acknowledged by many researchers. In this theoretical paper, we want to capture different meanings and aspects approaching it from three levels: (1) comparing definitions, (2) relating other constructs, (3) referring research teaching settings. first level is an attempt organise existing definitions posing. result analysis are five categori...

Nowadays there exists a wide variety of automatic machines that perform analytical tests on liquid samples, such as water, blood, urines, saliva, etc. A test can be modelled set activities with given precedences and through sharing limited resources. scheduling process is therefore required to find feasible or optimal execution tests. An important particularity the performing are their storage ...