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Suggest a simple sequantial diagram for creating a new class SafeMember that would allow us to export a reference to a Member. The classes outside the system should be unaware of this additional class, and access the reference like a reference to a Member object. However, the reference would not allow the integrity of the data to be compromised. Remember that when designing the “Return Book with fines” use case, Member object is returned to the UserInterface to be able to display the member information such as owed fine. But this also means that the UserInterface can access all the Member methods. Your implementation of SafeMember class should prevent this.

Suggest a simple sequantial diagram for creating a new class SafeMember that would allow us to export a reference to a Member. The classes outside the system should be unaware of this additional class, and access the reference like a reference to a Member object. However, the reference would not allow the integrity of the data to be compromised. Remember that when designing the “Return Book with fines” use case, Member object is returned to the UserInterface to be able to display the member information such as owed fine. But this also means that the UserInterface can access all the Member methods. Your implementation of SafeMember class should prevent this.

Computer Networking: A Top-Down Approach (7th Edition)
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
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Suggest a simple sequantial diagram for creating a new class SafeMember that would allow
us to export a reference to a Member. The classes outside the system should be unaware
of this additional class, and access the reference like a reference to a Member object.
However, the reference would not allow the integrity of the data to be compromised.
Remember that when designing the “Return Book with fines” use case, Member object is
returned to the UserInterface to be able to display the member information such as owed
fine. But this also means that the UserInterface can access all the Member methods. Your
implementation of SafeMember class should prevent this.

Userinterface Library book Book Catalog member Member MemberList issueBooks memberiD request memberiD searchMembership(memberiD) member = searchimemberlD) member hasFineBoolememberHasFine(memberlD) member - search(membertD) boolean - hasFine opt [hasFineBool =- true] Pay? Yes/No alt [Pay] payment request payment collectFine(memberiD. payment) member = search(memberlD) payFineipayment) [Do not pay] Cant issue books loop bookiD request bookiD issueBook(bookiD, memberiD) book = search(booklD) member = search memberiD) boolean = issue(book) boolean = issue(member) book result More books? Yes/No
Transcribed Image Text:Userinterface Library book Book Catalog member Member MemberList issueBooks memberiD request memberiD searchMembership(memberiD) member = searchimemberlD) member hasFineBoolememberHasFine(memberlD) member - search(membertD) boolean - hasFine opt [hasFineBool =- true] Pay? Yes/No alt [Pay] payment request payment collectFine(memberiD. payment) member = search(memberlD) payFineipayment) [Do not pay] Cant issue books loop bookiD request bookiD issueBook(bookiD, memberiD) book = search(booklD) member = search memberiD) boolean = issue(book) boolean = issue(member) book result More books? Yes/No
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