Return to ENVRI Community Home![]()
The ENVRI RM IV defines IV Information Objects#datastate and IV Information Objects#metadatastate data state and metadata state as the set of attributes which determine the actions that can be performed over a given information object.
...
In the diagram the filled circle indicates a starting point or a junction. Used as starting point, a filled circle indicates a pseudo-state which represents the start of the lifetime of an object instance. Used as a junction, the filled circle indicates a pseudo-state where paths merge or split. The Rectangles with a label in the upper left corner are used to indicate the object whose states are represented. The rectangles with rounded corners are used to indicate states. Each arrow indicates a transition between states. The label of the arrow indicates the activity that triggers the transition. The bar figure in the diagram indicates a pseudo-state that can represent a fork or a merge of paths. The type of diagram presented is an UML state machine diagram [ Bibliography#ref4040].
The diagram shows the series of actions applied change the state of the IV object until it reaches a "published" state. In this diagram, only the persistent data object is shown. The diagram is linear and depicts contains only a subset of the allowed states and actions. This subset can vary from one RI to another. RIs can model their data lifecycles using state machine diagrams. The states described in the IV States diagram indicate a set of possible paths to follow when representing the data lifecycle. The instances developed by RIs may chose the states they need to include to represent their corresponding data lifecycles. RIs can also include additional states which help them better represent their data processing flows.
...