Chapter 3. Modeling Applications

Knowledge of the individual Mule elements means that you can start thinking in terms of services, routers, endpoints, and transformers. When you prepare to develop an application, however, it may not be obvious what should be a service or a router or a transformer. In this chapter we are going to explore a case study and model it using Mule. By the end of this chapter you will be able to model applications using Mule.

Real-World Scenario

Ricston Airways is an airline that operates daily flights from a single airport. The procedure to check in a passenger at this airport is as follows:

  1. The airline's back-end system is queried to ensure that the passenger who wants to check in actually has a ticket.

  2. If one was not already ...

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