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- you need to develop a LEVEL 0 diagram for the first question
and a context diagram for the second question.
Assignment 2
1- Create a level 0 diagram for the following system:
The online university registration system should be able the staff of each
academic department to examine the courses offered by their department, add
and remove the courses, and change the information about them (e.g. the
maximum number of students permitted). It should permit students to examine
currently available courses, add and drop courses to and from their schedules,
and examine the courses for which they are enrolled. Department staff should
be able to print a variety of reports about the courses and the students enrolled
in them. The system should ensure that no student takes too many courses and
that students who have any unpaid fees are not permitted to register. (Assume
that a fees data store maintained by the university’ s financial office, which the
registration system accesses but does not change)
2- Create a context Diagram for the following system:
A Real Estate, Inc. (AREI) sells houses.
People who want to sell their houses sign a contract with AREI and provide
information on their houses. This information is kept in a database by AREI, and
a subset of this information is sent to the citywide multiple listing services used
by all real estate agents.
AREI works with two types of potential buyers. Some buyers have an interest in
one specific house. In this case, AREI prints information from its database, which
the real estate agent uses to help show the house to the buyer (a process beyond
the scope of the system to be modeled).
Other buyers seek AREI’s advice in finding a house that meets their needs. In
this case, this buyer completes a buyer database, and AREI’s real estate agents
use its information to search AREI’s database and the multiple listing services
for houses that meet their needs.
The results of these searches are printed and used to help the real estate agent
show houses to the buyer.
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