VCE Stuff > VCE Computing: Software Development
PSM question
dida:
Okay, Awesome, thanks. Hopefully this comes up on the exam now that we understand it, this would get a lot of students.
Nephix:
Another question to anyone out there!
In a DFD the "external entities of the system" can be apart of the organisation that are just simply passing information to that system right?
Because in the Janson textbook it says that external entities can only be people/organisations that are outside the organisation.
This is sort of odd, because a secretary for a company inputs information into a booking system but is also apart of the organisation, so would they be included in the DFD?
Checkmate:
--- Quote from: Nephix on November 14, 2013, 09:25:25 pm ---Another question to anyone out there!
In a DFD the "external entities of the system" can be apart of the organisation that are just simply passing information to that system right?
Because in the Janson textbook it says that external entities can only be people/organisations that are outside the organisation.
This is sort of odd, because a secretary for a company inputs information into a booking system but is also apart of the organisation, so would they be included in the DFD?
--- End quote ---
I would say yes.
Only context diagram, i.e level 0 DFD requires the external entities to be external to the system since in the level 1 DFD, that contains everything of the system.
Nephix:
--- Quote from: Checkmate on November 14, 2013, 09:30:38 pm ---I would say yes.
Only context diagram, i.e level 0 DFD requires the external entities to be external to the system since in the level 1 DFD, that contains everything of the system.
--- End quote ---
Sounds good to me , cheers bud
Nephix:
Another question:
Are we expected to know Data structure diagrams/IPO charts/Story boards etc
Navigation
[0] Message Index
[#] Next page
[*] Previous page
Go to full version