Assignment 1: Error Handling in an Activity Diagram
Due Week 2 and worth 150 points
Refer to the activity diagram Figure 2-15 on page 59 of the textbook. The diagram omits several error-handling pathways.
Write a two to three (2-3) page paper in which you:
Your assignment must follow these formatting requirements:
The specific course learning outcomes associated with this assignment are:
FIGURE 2-14 Activity diagram symbols
Figure 2-15 is an activity diagram that describes the order fulfillment process for the current RMO CSMS. Processing begins when the customer has completed the order checkout process. The diagram describes the back-and-forth flow of information and control between the Order subsystem, Inventory subsystem, warehouse(s), and shipper. The diagram is simplified because it omits many error-handling pathways, including what happens if enough item stock is on hand to fulfill part of an order.
Figure 2-16 illustrates another workflow diagram, which demonstrates some new concepts. In this example, a customer is ordering a product that has to be manufactured specifically to match customer specifications. The salesperson sends the order to Engineering, and the diagram uses a new symbol to emphasize the transmission of the document between Sales and Engineering. After Engineering develops the specifications, two concurrent activities happen: Purchasing orders the materials, and Production writes the program for the automated milling machines. These two activities are completely independent and can occur at the same time. Notice that one synchronization bar splits the path into two concurrent paths and that another synchronization bar reconnects them. Finally, Scheduling puts the order on the production schedule.
Creating activity diagrams to document workflows is straightforward. The first step is to identify the agents to create the appropriate swimlanes. Next, follow the various steps of the workflow and then make appropriate ovals for the activities. Connect the activity ovals with arrows to show the workflow. Here are a couple guidelines:
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