Source has a set of Assurance Rules that provide optional checks of models, accessible via Edit » Scenario Options. Assurance Rules define and detect unacceptable states in the model, increasing the confidence that the user can have in the model and the output data. Users can customize Assurance Rules in Source by choosing the severity of the notification if an Assurance Rule is not met by the model. Further customization is possible by creation of plugins that define custom Assurance Rule(s). Functions with /wiki/spaces/SD516/pages/54986693 may also be used for validation and logging at custom notification levels.
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| Assurance Rule Category | Definition |
|---|---|
| Advanced use | All file data sources used in the current input set are checked to ensure they each have a time series assigned to that input set. Nodes are checked to ensure only confluences have multiple upstream links. |
| Continuous Accounting | Allocation priorities are checked to ensure they match the priorities of the account types. |
| Functions | Function result units must be commensurate with their usages:All functions that are used as an input for a /wiki/spaces/SD516/pages/54986693 (eg. nodes, links) are checked to ensure that the result units configured for the function in Function Editor are commensurate with the usage units. For example, a function used as input for an Inflow node, should be set in Function Editor. Modelled variable units must be commensurate with their assigned model property:All modelled variables that are used by a function used in the scenario are checked to ensure that the units configured for the modelled variable in Function Editor are commensurate with the units for the /wiki/spaces/SD516/pages/54986693 (eg. nodes, links) property. A Time of Evaluation must be set for Functions (unless constant), and variables set to Specify ToEAll functions and variables, which are "used" and non-constant, are checked if a time of evaluation is set. Specifically:
A function is considered used if:
/wiki/spaces/SD516/pages/5498696954986693 are excluded from this rule. |
| Mass Balance | Mass balance is checked to ensure it is within the tolerance limit for the entire network and for each catchment, link and node. For example, the rule checks that a node's loss does not exceed inflow. The default tolerance limit is 1 ML, this limit can be changed by navigating to Tools » Application Settings.... |
| Nodes | Storage dimensions are checked to ensure that each level and volume is greater than the previous level and volume. Surface area is checked to ensure that it is greater than or equal to the previous surface area. |
| Ordering | For constraints, the rule will fail if any constraint exists where:
For orders, the rule will fail if:
Note, these rules are primarily for debugging purposes, and are set to a notification level of 'None' by default. |
| Outflow | Negative flows are checked for downstream of each node and link. |
| Ownership | Ownership proportions are checked to ensure they sum to 1 |
| Storage Routing Ordering | Checks that the travel time on Storage Routing links is not infinity or negative. This can happen if the representative regulated flow rate for the storage routing link has not been set (in Storage Routing Feature Editor, Avg. Reg Flow = 0 and storage exponent m ≠ 1). |
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