Vrs Use Case

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Ian Sommerville 2004 Software Engineering, 7th edition. Chapter 4 Slide 1Slide 1

Use Case Diagram


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Use Case Diagram

The owner of the local video rental storewants to radically change how his videorental business works. Currently, he has

the traditional video rental store wherecustomers become members, come intothe video rental store to rent a video, andreturn the video. With his new business

plan, he hopes to increase his profitmargin by increasing video sales andreducing staff.

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Use Case Diagram

In his new business plan, he wants to have thecustomers do everything online but the pickingup and returning the videos. He wants a VRSwebsite that allows the customers to become

members or search the video inventory (byvideo name, actor name, director name, type ofvideo (new release, western, mystery, drama,comedy, children, etc.), or video rating). TheVRS website also allows members to log on asa member, search the video inventory (asbefore), select videos to rent (videos must belocated at the store location where the memberwants to pick up the videos), modify

membership information, and check out thevideos.


4/18Ian Sommerville 2004 Software Engineering, 7th edition. Chapter 4 Slide 4Slide 4

Use Case Diagram

The member can also pay late fees online sincevideos cannot be rented by a member withoutstanding late fees. The paying of late feesand the rental of videos is to be charged to a

credit card number provided by the customer inthe membership application process. Providedwith each rental is a video rental form whichlists, for each video rented, the video ID, videoname, and the due date and the rental chargescharged to the members credit card. Rentedvideos can be returned to any of the ownersvideo stores. Rented videos that are not pickedup within 24 hours are returned to the available

inventory; however, the rental charged is notremoved from the members credit card.

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Use Case Diagram

On the day before a rented video is due to bereturned, the VRS will email members with duenotices which reminds them that the video is due. Thisdue email will be sent to the member every 3 days

after the videos due date. After 60 days of being pastits due date, a $30 charge for each overdue video isprocessed on the members credit card, and an emailis sent to the member to notify them of this charge.The length of rental is 5 days.

The pick-up and return of rented videos is only donethrough a drive-through facility at the video store. Theability for the customer to come into the video rentalstore to search for and rent videos is no longeravailable with this new business plan.



Use Case Diagram

The owner of the video store also wants to automatehis inventory processing. He can now get newlyordered videos with a video ID (via a bar code) on thevideo packaging. When new videos arrive at a store,

the owner wants to simply scan the video ID whichthen retrieves the video information from the videodistributor via the Internet (the video distributorsprovide this feature on their websites). All the videoinformation (i.e., its name, rating (e.g., G, PG, R),director, length in minutes, actors) are automaticallystored in the stores video inventory. The owner thenindicates the store location where the video will beplaced. When he wants to remove a video from thestore because it is never rented or it is damaged (orfor whatever reason), he simply chooses the remove

option and scans the video ID to be removed.

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Use Case Diagram

Note on rental fees: the amount of the rental fee isdetermined by its type. New releases are at a rentalfee of $3.00. All the remaining types except

childrens are at a rental fee of $2.00. Childrensvideos are at a rental fee of $1.00. Once a video isno longer considered a new release, the ownerchanges its type from new release to theappropriate type (western, mystery, drama,comedy, etc.).



Use Case Diagram

Build use case diagram for a videorental system

Customers

Owner

Member

Potential ACTORS


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Use Case Diagram


Potential USE CASES

become members

rent a video

select videos

modify membership informationpay late fees

charge to a credit card

email member of due notice

email member of charge for overdues


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Use Case Diagram


Potential USE CASES

become members

select videos

rent a video

pay late feesreturn videos

charge to a credit card



RegisterMembership

RentVideo

ReturnVideo

Pay LateFee

Search

Videos


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Use Case Diagram

Build use case diagram

Potential USE CASES

become membersrent a video

select videos

modify membership information

pay late feescharge to a credit card



remove videos

add videos

Add NewVideo

RemoveVideo

Email DueNotices

ModifyVideoLocal


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Use Case Diagram

Register asMember

SearchVideosCustomer


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Use Case Diagram

Register asMember

SearchVideos

Rent

VideosPay Late

Fee

ReturnVideo

Customer

MemberClerk


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Use Case Diagram

Register asMember

SearchVideos

Rent

VideosPay Late

Fee

ReturnVideo

Add NewVideo

RemoveVideo

Customer

Member

Distributor

Owner

Clerk

Modify

Video


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Use Case Diagram

Register asMember

SearchVideos

Rent

VideosPay Late

Fee

ReturnVideo

Add NewVideo

RemoveVideo

Customer

Member

Distributor

Owner

Clerk

Modify

Video

Email Due

Notices

Timer


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Use Case Diagram

Register asMember

SearchVideos

Rent

VideosPay Late

Fee

ReturnVideo

Email Due

Notices

Add NewVideo

RemoveVideo

Modify

Video

Customer

Login

Member

Distributor

Timer

Owner

Clerk


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Use Case Diagram

Register asMember

SearchVideos

Rent

VideosPay Late

Fee

ReturnVideo

Email Due

Notices

Add NewVideo

RemoveVideo

Modify

Video

Customer Print RentalForm

Login

Member

Distributor

Timer

Owner

Clerk


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Use Case Diagram

Register asMember

SearchVideos

Rent

VideosPay Late

Fee

ReturnVideo

Email Due

Notices

Add NewVideo

RemoveVideo

Modify

Video

Customer

ModifyMembershi

p

Print RentalForm

Login

Email 60Day Notice

Member

Distributor

Timer

Owner

Clerk

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