11. On the other hand, state diagrams describe possible states of an object and transitions between them. 12. Control and decision structures are often prototyped in flowchart applications, or entered in a state diagram editor. 13. The Harel statechart is equivalent to a state diagram but it improves the readability of the resulting diagram. 14. Control logic can be modeled using a state diagram , which is a form of hierarchical state machine. 15. Classic state diagrams require the creation of distinct nodes for every valid combination of parameters that define the state. 16. From the finite state diagram we can infer the following generators ( shown at right ) that creates the signal. 17. For example, state diagrams poorly represent the sequence of processing, be it order of evaluation of structured code. 18. Umple can be used to represent in a textual manner many UML modelling entities found in class diagrams and state diagrams . 19. These state diagrams can also be combined with flow charts to provide a set of computational semantics for describing complex control logic. 20. In order to further describe the behaviour of systems, these class diagrams can be complemented by a state diagram or UML state machine.
