Context diagram (1 Viewer)

[TheBiggerFish]

Quick question -

In a context diagram, do the arrows representing data flow need to be labelled with what data is being transferred?

 

[fatmuscle]

It is preferred that u did

but nothing specific

 

[Beaker]

I never do... Hmm

 

[redslert]

Originally posted by fatmuscle
It is preferred that u did

but nothing specific

i disagree with you
i think it is very important that you show what data is flowing from one entity to a process and then back to the entity!
reason for this is that the data changes

 

[fatmuscle]

but what type of data?


nothing specific - sorry, i meant nothing like coding variables or stuff like that.

 

[Beaker]

oh cool that's ok then

 

[CaR]

Originally posted by Beaker
I never do... Hmm

haha..neither do i

 

[lil_star]

i hated context and data flow diagrams....thats why prolly...i forgot em straight after ipt hsc exam!

 

[redslert]

remember to put them in!!

 

[CaR]

okok..i will...next time i remember...

hrmm...anyone think i'd lose a few marks if i forgot during my half yearly exams? >.<"

 

[lil_star]

yes i belive you will not gain marks...there....as labelling data flows are a part of the diagram ...remember next time....

 

[fatmuscle]

lol.... not labelling the data flows in DFDs...

then there will be no point to the diagram!!!

 

[alby]

isnt it that only dfd's need 2 be labled....i dun tink i lable my contexts

lil star: lolz i was tryin 2 rememba who u were....i was tinkin of ur biscuit dipit...who was the le snack person again?? lolz

 

[lil_star]

alby: sorry i cudnt follow wat u said...u mean the snack person at IT camp? do i know u?

i label my context diagrams only....as far as i remember....pardon me if im wrong...as i havent touched the diagrams since 22nd October 2003

 

[fatmuscle]

yeah, i think labeling DFDs is more important than context

 

[redslert]

you must label everything!
if your going to label for a DFD might as well do it for a context which is way easier!

hehe, here are 2 examples which i did answering some questions on this forum last year

take note that the second diagram can be classified as a context diagram (well it basically is a context except it has bits added onto it)
ok if i didn't label all the flow of data would you have any clue what was going on?! o_0

 

[CaR]

aiii...great!~ >.<"
well...guess i wont forget it nomorez...o___.