Business process modeling and implementation using the Oracle BPM Suite should be an iterative process. Due to that you make an effort to postpone the necessity to create (paper) specs so long as possible. In the end, your working BPM prototype is the standards. Otherwise, when you are iterating, the paper standards would need to be changed as well, producing a lot of over head which would not add much value, but cost the more.
Provide the base for test scenarios. Now let’s do a quiz and count number use instances in a simple BPMN diagram that is created with OBPM. For all those that are not familiar with use case modeling: a use case captures requirements from the perspective of the actor that wants to accomplish some goal using the machine.
So how many use situations do you rely in the following business process, when for you ignore the Receive Order by JMS activity now? The good answer is three. In case you had another answer, continue reading! The first use case is Place Order. The (main) acting professional is the customer, and the goal is putting an order.
The global interactive activity Place Order covers that, and will kick of the process. As a result the very first thing that will happen, is that the system automatically notifies the account manager through the automatic Notify Account Manager activity. The notification will take place immediately after entering the order, right after an individual pressed the submit button. When your thinking was that the notification is area of the second use case, which incidentally is Handle Order, think about this.
- Statement of the problem
- The amount of the change, if the noticeable change affects that period only; or
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The receiving of the notification by the account manager may have happened much earlier than the actual handling of the order by that account manager. So the notification itself is not an integral area of the single setting in which the account manager deals with the order. So, yes getting the notification is the trigger of the Handle Order use case, but not part of this use case itself (i.e. not the first step of the situation). For a similar reason as discussed for the Place Order use case, the (automated) Create Back-order activity is part of the Handle Order use case. The creation of the back-order actually is handled through an alternate situation of the Handle Order use case.
The last and last use case is the Ship Order, obviously. Now let’s review the Receive Order by JMS activity, and let`s say that this only supports a different route through which the same customer can place an order. The JMS queue may for example be used to move in some SMS message.
From a requirements perspective you can declare that this is area of the Place Order use case. The argument being that using a OPBM display screen or sending a text are just two different solutions to the same professional goal: placing an order. Supporting different stations is “just” a supplemental requirement of the Place Order use case. So when you had “four” or “five” as your answer, depending on your reasoning, you might have been right as well.