Trigger → Condition → Action is a useful execution pattern for event-driven automation, especially in Shopify Flow. It is not the complete Codified Algorithmic Thinking™ framework.
Where the pattern fits
Within CAT, trigger-condition-action typically belongs to the Execute stage after the objective and dependencies have already been defined.
Trigger
The event that begins the workflow: an order is created, inventory changes, a customer is tagged, a fulfilment occurs or another supported event fires.
Condition
The logical test that determines whether the workflow should proceed—for example order value, customer state, location, product attributes or combinations of those facts.
Action
The bounded operation performed when the condition is satisfied, such as adding a tag, updating a metafield or sending a notification.
Why this is not enough by itself
A technically correct Flow can still be the wrong business implementation if:
- the wrong system is treated as the source of truth;
- another app already writes the same field;
- the condition is based on unreliable data;
- the workflow has no failure or rollback plan;
- nobody defined how success will be measured.
The complete CAT sequence
CAT governs Define → Decompose → Orchestrate → Execute → Validate → Learn. Trigger-condition-action can be one implementation grammar inside that larger sequence.
When another execution model is needed
Some objectives are not event-driven Flow problems at all. They may require an API integration, custom app, theme change, content architecture, marketing intervention or consulting decision. CAT chooses the execution layer after understanding the objective rather than forcing every requirement into a workflow.
Why the distinction matters
This keeps the intellectual property in the reasoning system rather than equating it with a library of automations. Shopify Flow is an important native tool; CAT is the framework that decides when and how tools should be used.
