Jarvis Pizzeria: Fourth step in Implementing the Order Processing, Decision Model by Richard Olrichs & Marcel van de Glind & Marc Kuijpers

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In our previous blog we gave an overview of the various type of decisions that are available for a Decision Model. In this blog we show by means of an example that Decision Models can also be used for making complex decisions. We are going to make a decision model that determines the order of preparation of the pizzas in an order.
The order of preparation is determined by the baking time, the total preparation time of each pizza and the number of available ovens (1 pizza per oven). Let’s assume that we have an order for the following 9 pizzas:

  1. Small Margherita
  2. Large Margherita
  3. Small Pepperoni
  4. Medium Pepperoni
  5. Medium Pepperoni
  6. Large Pepperoni
  7. Small Quarttro Stagioni
  8. Medium Quarttro Stagioni
  9. Large Quarttro Stagioni

Expected outcome

The pizzas with the longest baking time are prepared first. When pizzas have the same baking time, the total preparation time is also taken into account to determine the order. As a result, to determine the sort order we first need to determine the baking time and total preparation time for each pizza.

Because not all pizzas can be prepared at the same time, pizzas that are not in the oven will have a waiting time. Once we have established the order, we can also determine the waiting time per pizza. We explain this with the help of the figure below. Read the complete article here.

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About Jürgen Kress
As a middleware expert Jürgen works at Oracle EMEA Alliances and Channels, responsible for Oracle’s EMEA Fusion Middleware partner business. He is the founder of the Oracle SOA & BPM and the WebLogic Partner Communities and the global Oracle Partner Advisory Councils. With more than 5000 members from all over the world the Middleware Partner Community is the most successful and active community at Oracle. Jürgen manages the community with monthly newsletters, webcasts and conferences. He hosts his annual Fusion Middleware Partner Community Forums and the Fusion Middleware Summer Camps, where more than 200 partners get product updates, roadmap insights and hands-on trainings. Supplemented by many web 2.0 tools like twitter, discussion forums, online communities, blogs and wikis. For the SOA & Cloud Symposium by Thomas Erl, Jürgen is a member of the steering board. He is also a frequent speaker at conferences like the SOA & BPM Integration Days, JAX, UKOUG, OUGN, or OOP.

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