Run a flow

Select

By clicking ‘Run a Flow’ on the main menu or homepage you can set up a Job to execute a Flow.

First, select a Flow…

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TRAC then builds the UI that you need to finish setting up the Job.

Set-up

Clicking ‘Show chain’ expands a list of the Models which make up the Flow.

If more than one Model matches the criteria for use in the Flow, the most recent version is selected. This can be manually changed by clicking ‘Change version’.

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Moving down the page, the default values of any parameters are pre-populated as are the data inputs.

If TRAC couldn’t find a Data object which meets the Flow’s requirements you see an error message. If multiple options are found the most recent is selected, but you select an alternate via the drop-down.

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If you’ve finished making changes, click ‘Review’ to see a final breakdown of what will be in the Job.

Review & launch

Clicking ‘View full info’ brings up the full details of the Flow that will be used, including visualisation

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You can also access the object summaries for each Model and Data input via their ‘More info’ buttons.

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If it all looks correct, populate the general attributes and click ‘Run’. A Tag is not required but if you do populate it all the Job’s outputs will have this Tag assigned, so they are easier to find.

Look for models to load

You will get a message telling you the job has started. This page won’t tell you the outcome, so (find the job) to check its status. Once the Job completes, the outputs will also be discoverable as data objects.

If there is an issue with the Job set-up you will see a red message instead.

Look for models to load

The most common issues are missing attribute information or mis-aligned data schemas.