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Fig 3. Use case 1: Connecting to other rivers

Preconditions:

• The model user has the OpenMI-compliant Simple River model installed on his PC.
• The model user has input files for the Simple River model available on his PC.
• The model user has an OpenMI configuration user interface installed on his PC.
• The model user has another OpenMI-compliant river model (including required datafiles) available on his PC.

Success guarantee (postconditions):

• All models have generated correct results.

Main success scenario:

1. The model user loads the OpenMI GUI on the PC.
2. The model user uses the GUI to browse for available LinkableCompnents.
3. The model user finds the Simple River OMI file and the OMI file for the other river model.
4. The model user loads the two files (components) into the GUI.
5. The model user creates a unidirectional and ID-based link from the downstream node in the other river model to the upstream node in the Simple River.
6. The model user selects input and output exchange items for the link (input quantity for the Simple River is 'Inflow').
7. The model user defines the simulation period.
8. The model user runs the simulation.

Extensions to the use case provide alternative flows. Here, the flow splits from step 5 into two
alternatives.

First alternative:

• 5. The model user creates a unidirectional and ID-based link from the downstream branch in the Simple River model to the upstream node in the other river model.
• 6. The model user selects input and output exchange items for the link (output quantity for the Simple River is 'flow').
• 7. The model user defines the simulation period.

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• 8. The model user runs the simulation.

Second alternative:

• 5. The model user creates a unidirectional and ID-based link from the downstream branch in the other river model to an internal node in the Simple River model.
• 6. The model user selects input and output exchange items for the link (input quantity for the Simple River is 'Inflow').
• 7. The model user defines the simulation period.
• 8. The model user runs the simulation.

Image Modified

Fig 3. Use case 1: Connecting to other rivers

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• The model user has the OpenMI-compliant Simple River model installed on his PC.
• The model user has input files for the Simple River model available on his PC.
• The model user has an OpenMI configuration user interface installed on his PC.
• The model user has another OpenMI-compliant river model (including required datafiles) available on his PC.

Success guarantee (postconditions):

• All models have generated correct results.
  Main success scenario:

1. The model user loads the OpenMI GUI on the PC.
2. The model user uses the GUI to browse for available LinkableCompnents.
3. The model user finds the Simple River OMI file and the OMI file for the other river model.
4. The model user loads the two files (components) into the GUI.
5. The model user creates a unidirectional and ID-based link from the downstream node in the other river model to the upstream node in the Simple River.
6. The model user selects input and output exchange items for the link (input quantity for the Simple River is 'Inflow').
7. The model user defines the simulation period.
8. The model user runs the simulation.

Extensions to the use case provide alternative flows. Here, the flow splits from step 5 into two
alternatives.
First alternative:

...

• .