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Assignment # 1 1 Cs403 Database Management System CS403 Due-(Answered)

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Assignment # 1

 


 

1

 


 

Cs403

 


 

Database Management System CS403

 

Due date: 22/5/2016

 

The Assignment:

 

Draw the DFDs (Context and level 0) for a distance education university. The enrolment

 

process works as follows:

 

Students send in an application form containing their personal details, and their desired

 

course

 

The university checks that the course is available and that the student has necessary

 

academic qualifications.

 

If the course is available the student is enrolled in the course, and the university confirms

 

the enrolment by sending a confirmation letter to the student.

 

If the course is unavailable the student is sent a rejection letter.

 

1.

 


 

Read the problem description carefully looking for:

 


 


 


 


 


 

people/organizations/things that supply information to or use information

 

from the system => external entities (EE)

 

actions/doing words/verbs => Processes (P)

 

movement/exchange of information/data between external entities to

 

processes, and processes to processes => data flows (DF)

 

store/record information/data => data stores(DS)

 


 

2.

 

It often helps to walk through the system in its logical sequence; eg starting with an

 

external entity (source), add data flows, processes and data stores as the data provided by

 

the entity is manipulated by the system.

 


 


 


 


 


 


 

A student (EE) sends in an application form (DF) containing their personal

 

details, and their desired course

 

The university checks (P) that the course is available.

 

If the course is available the student is enrolled (P) in the course, and the

 

university confirms (P) the enrolment by sending a confirmation letter (DF) that

 

they are registered for the course to the student.

 

Or if the course is unavailable the student is sent a rejection letter (DF).

 


 

Purposes:

 


 

Assignment # 1

 


 

2

 


 

Cs403

 


 

Ensure that you can analyze existing manual system and can draw Data Flow

 

Diagrams of any proposed system.

 

Before Starting:

 

Detail study of existing system.

 

Rules for drawing DFDS.

 

Differentiate between different levels of DFDS.

 


 

Note: Try to solve assignment your self if it is found that your assignment is copied with

 

other student. Then both assignments marked as zero. Don?t put assignment related

 

question on MDB. For any further quarries about assignments mail at :

 

No assignment will be accepted after due date via email.

 


 

 

Paper#9257041 | Written in 27-Jul-2016

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