Workflows: The session is on modelling systems and user workflows for applications.

Sequential workflow

• Defined processes that occur one after another.

eg. User edits. Is user finished editing? If yes, prompt for save. If not, ... etc.

State machines

• Define states that your application can be. e.g., for a document it may be in draft, edited, published, etc.

Data-driven workflows

"Odd", "surreal". Doesn't have a slide for it as he cannot imagine it. e.g., Stock control system. Monitors units of products. When it reaches a certain number, it places an order.

Aral: So, basically an event model/observer pattern.

The BarCampLondon: Workflows article by Aral Balkan, unless otherwise expressly stated, is licensed under a Creative Commons Attribution-Noncommercial 2.0 UK: England License.