Exercise:
The manager of the Sales and Customer Services Department of a supermarket is interested in the development of a support system for your Fono Mercado service. This manager explains to us briefly its operation:
In such a system, a customer requests a list of products over the phone which is then sent to them. two to your domicile. In order to order products, a person must first register as a customer. In said moment, your personal data is taken (surname and first name, ID, address and telephone number) to incorporate them into the customer base. When you register as a customer, you are assigned a unique number that identifies as such. Then, said client will be able to make product requests by providing that number.
All requests are taken unconditionally. That is, when a customer calls at any moment requesting products, the order is placed in a pending order base. If then, at assemble the order, some of the requested products will not be in stock, those are ignored products, any products are invoiced and delivered, discounting them from the stock that is maintained.
A copy of the invoice is recorded and another copy is sent to the accounting department.
Upon detecting that a product is not in stock, a request for replacement is immediately filed. pending supplier order, which will then, at the end of the day, be sent to the supplier of said product.
Orders are generally placed twice a day, at 12 noon and 7 p.m. Armed orders together with your original invoice are sent to the home delivery department, which is responsible for deliver them to the respective clients.
The client always pays in cash and cash on delivery, that is, they pay at the time they are delivered. the products requested from the agent of the home delivery department. The agent must render then the money to the accounting department.
Both the accounting department and the delivery department already have their own systems to support your operation.
One of our most novice analysts has developed the following Event List, taking into account account the operation described above.
Event List:
A. The System registers a Person as a Client
b. A Customer places an Order for Products
With the above information:
1. Check if the events in the list are well formulated and correct those that are not.
2. Check if the event list is complete, taking into account the operation described, and add events if necessary.
3. Build the Context Diagram and the Data Dictionary resulting from the Process.