ICT2611 Graphical User Interface Programming

ICT2611 EXAM PACK
2025

QUESTIONS AND
ANSWERS
FOR ASSISTANCE CONTACT
EMAIL:

,lOMoARcPSD|50013335




ASSIGNMENT 3
ICT2621

, lOMoARcPSD|50013335




Contents
Question 1 [21] 1

Question 2 [13] 2

Question 3 [15] 4

Question 4 [10] 5

Question 5 [10] 6

Question 6 [6] 8

Question 7 [10] 9

Question 8 [15] 10

References 11

, lOMoARcPSD|50013335




Question 1 [21]

NB: When drawing data flow diagrams (DFDs), use the Gane and Sarson symbols/notation set.


1.1 Draw, name and describe the four symbols used in a data flow diagram (DFD). You may use a table

Symbol Name Gane and Sarson Symbol Description

Process Symbol A process is a method that alters the flow of data by taking in data

and then providing an output. A process can accomplish this by ca

computations, sorting the data logically, or altering the flow of the

processes begin at the top left of the DFD and end at the bottom r

Data Flow Symbol Information traveling through processes and data stores to reach t

known as data flow. The DFD can show you the direction of the da

arrows and brief labels.

Data Store Symbol Information is kept in data stores for future use, much like a file of

waiting to be processed. Data outputs flow out of a data store and

process, whereas data inputs flow through a process and then thr

store.

Entity Symbol A system or process outside the diagrammed system that transmi

receives data from it is referred to as an external entity. It may als

as a terminator, source, sink, or actor. They are typically positione

diagram's edges since they serve as either information sources or

All models share comparable external entity symbols, with the exc

Unified, which substitutes a stick figure depiction for a rectangle, c




1