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Assignment No. 1
Semester Fall 2016
Software Engineering-I CS504
Total Marks: 20
Due Date: 18/11/2016
To learn and understand the basic concepts of Use Case Modeling
Please read the following instructions carefully before solving & submitting assignment:
Assignment should be in your own wordings not copied from net, handouts or books.
It should be clear that your assignment will not get any credit (zero marks) if:
o The assignment is submitted after due date.
o The submitted assignment does not open or file corrupt.
o The assignment is copied (from other student or copy from handouts or internet).
For any query about the assignment, please communicate at CS504@vu.edu.pk
Suppose you are working as Requirement Engineer in a renowned software house ABC.
You have been given a task to model requirements for a software project of a web based
application for client XYZ.
Online examination is a web portal to establish a network between the students and institute. The
system provides a platform for online exam conduction. The examiner visits web site and update
question bank which will display as a test to eligible students. Examiners lock or update
questions when required. Students attempt exams and portal automatically captures students
answers, calculate their score and saves. The administration access the results to determine the
pass ratio or to check the performance of the student in particular subject. The Admin of web
portal will monitor all the activities and authorize login for both students and examiner with
different set of rights. The students are able to get registered, attempt the paper, see the
announcements and view their results.
You are required:
1. Develop a Use case Diagram for the system discussed above. (10 Marks)
2. Answer the following according to discussed scenario. (10 Marks)
I. Name of different Actors.
II. Alternatives path. (For Registration and Score Calculation)
III. Exceptions (For registration process)
HINT: The importance of this task lies on the syntax and semantics of the UML use case diagram. Your
diagram should contain examples of includes>> and extends>> relations.
Assignment should be in your own wordings not copied from other students, internet, handouts or
Your answer should be “to the point”.
Submit your assignment as Microsoft word document (for diagram you can use UML diagrammer).
Paste your Use case diagram in MS word file and submit via LMS.
This is a graded assignment.
Wish you very best of Luck!
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Use Case Model Components A use case model has two components, use cases and actors. In a use case model, boundaries of the system are defined by functionality that is handled by the system. Each use case specifies a complete functionality from its initiation by an actor until it has performed the requested functionality. An actor is an entity that has an interest in interacting with the system. An actor can be a human or some other device or system. A use case model represents a use case view of the system – how the system is going to be used. In this case system is treated as a black box and it only depicts the external interface of the system. From an end-user’s perspective it and describes the functional requirements of the system. To a developer, it gives a clear and consistent description of what the system should do. This model is used and elaborated throughout the development process. As an aid to the tester, it provides a basis for performing system tests to verify the system. It also provides the ability to trace functional requirements into actual classes and operations in the system and hence helps in identifying any gaps.
Lecture No. 6
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Name of different Actors.
Exceptions (For registration process)
user already exists
cs504 1st assignment solution 2016