Question

Chapter Case: Campus Bikes

Campus Bikes is a popular bicycle shop located near a major university. The business has grown and the owner, Mark Turner, wants to install an up-to-date computer system to handle all business functions.

Background
Campus Bikes sells several brands of new bikes, including everything from high-end racing models to beach cruisers. In addition to sales of new bikes and accessories, Mark’s service department is always busy. The staff includes Mark himself, a bookkeeper, two part-time sales reps, a full-time mechanic, and several part-time service helpers who assemble bikes.

Before opening the shop three years ago, Mark worked for many years in his father’s auto dealership, Turner Motors, and he learned all about the automobile business. In the bike shop, he runs a similar operation, but on a much smaller scale. For example, sales orders are recorded on pre-printed forms, and service requests are written up just as they would be in an auto service department.

Mark’s customers find him fair and reasonable. He likes to say that the main difference between his business and a big-box retailer is that he knows his customers and will do whatever it takes to keep them happy.

You work at the college as a lab assistant in the computer information department. You earned a computer science degree at a two-year school, and you recently decided to work toward your four-degree. The computer lab manager, Jill, often suggests that local businesses contact you for help in troubleshooting IT issues.

This morning, you received a call from Mark, who wants to hire you as a consultant to help plan a system for Campus Bikes. You learned that Jill had referred him, and you are excited to have this opportunity. It probably didn’t hurt that both you and Jill had bought bikes from Mark, and already knew him. After spending several weekends talking with Mark and the staff, you are ready to start. You decide to use an object-oriented approach that will be easy to understand.

Tasks
1. List possible objects in the new bike shop system, including their attributes and methods. Do not draw a diagram for this. Just a three column list will be appropriate.
2. Identify three possible use cases and actors.
3. Create a use case diagram that shows how service requests are handled. This diagram should be drawn similar to Figure 6-16 on page 189 of the text. Be sure to use the actors and use cases appropriate for this case as detailed above.
4. Create a state transition diagram that describes typical customer states and how they change based on specific actions and events. You can find an example of a state transition diagram in Figure 6-21 on page 192 of the text.

Answer 1

Answer)

If mark wants to sell bike as online platform so the diffrent objects we have to take into account.

In object oriented approach basically object represent the physical entity which participate in object oriented sys like in case of object oriented model of bike shop the ojects would customers and many more so below is the list of objects and their atributes and methods which will works over those object's atributes.

1)object:Staff

Atributes: departement,Name,salary,post,working experience,skills,date of joing.

methods:setdepartement,getsalary(),setsalary(),countreleventexperience()

2)customers

Atributes:name,age,occupation,customer_from,mobile_number,address,gender,Previous_sell.

Methods:earn_profit(),given_ranking() //given ranking in method which will calculate the importance of customer high importance means high ranking of basis of previous record and selling

3)product:

atributes: name,product_id,product_model,product_demand,product_price

methods:

calculate_profit(),setprice(),get_price(),countavail_quaintity()

4)inventory:

atributes:type,numberof items,number of type of items,shoratage_limit //shortage limit means below it we got to order item

methods: calcualte_limit(),count_items... etc

5)orders:

atributes:order_id,order_type,order_amount,customer_id,shipping_address

method:order_entry,order_track,order_closed.

answer 2) use cases:

1)creation of order

2) schedule the process

3) create invoice

means first create the order then send the request according to order to process once the process done create the invoice.

Answer 3)

Use case diagram:

means sale rep first create the order then send the request according to order to process once the process done create the invoice.

answer 4) state transition diagram:

state transition diagram in used to show the status of customer that customers is having curently.

  

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