1- (a) What is a module library?
(b) State 2 features which make modules portable.
2- (a) Explain what robust and fit for the purpose means.
(b) Describe 2 features of a structured listing.
3- Explain what is meant by the term "passed by value" in relation to paramters.
4- Use code of programming eviroment with which you are familiat to illustrate ONE example of a syntax error and ONE logic error.
*If you can help with some of the Qs, it'd be ok.
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Software Development Qs
Started by Rocky, Sep 15 2005 03:13 PM
13 replies to this topic
#2
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Posted 15 September 2005 - 03:47 PM
a module library is a compiled collection of procedure which a programmer can link to there project and use the procedures contained in the library
2 features that make them portable is that they are external to any program and they compiled so can be used on any computer
2a) robust means the program can handle problems like unexpected data and other run time errors and not crash
fit for purpose means the program meets the specification for the project
3) passed by value means in parameter passing that when the procedure calling the variable asks for it a copy of the variable is made and used by the procedure. This means the variable isnt passed back out to the main part of the program
4) syntax error in comal would be number1 == 4
one logic error would be
repeat
number1 = 1
until number1 = 5
logic error as would creat an infinite loop, not good!
2 features that make them portable is that they are external to any program and they compiled so can be used on any computer
2a) robust means the program can handle problems like unexpected data and other run time errors and not crash
fit for purpose means the program meets the specification for the project
3) passed by value means in parameter passing that when the procedure calling the variable asks for it a copy of the variable is made and used by the procedure. This means the variable isnt passed back out to the main part of the program
4) syntax error in comal would be number1 == 4
one logic error would be
repeat
number1 = 1
until number1 = 5
logic error as would creat an infinite loop, not good!
If i am not here i am somewhere else
#3
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Posted 15 September 2005 - 03:49 PM
Forget i ever said anything, Daves is alot more detailed, and got there first!!!
#4
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Posted 15 September 2005 - 04:13 PM
Thanx dave as usual also Nexus it's cool dude. As dave missed a Q so maybe you can help me with this one:
Describe 2 features of a structured listing.
Describe 2 features of a structured listing.
#5
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Posted 15 September 2005 - 04:24 PM
sorry
structured listing has tabbing for procedures and functions and such like
also has the colour coding for key words
structured listing has tabbing for procedures and functions and such like
also has the colour coding for key words
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#6
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Posted 15 September 2005 - 04:25 PM
^ What Dave said 
<MrBob> I hate Uni. At least in film studies we get to talk about Fight Club.
<@X-Factor> Wouldnt you be breaking the first 2 rules?
<@X-Factor> Wouldnt you be breaking the first 2 rules?
#7
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Posted 15 September 2005 - 04:26 PM
Thanx dave, also no point saying sorry. As you did most of the Qs which is much appreciated.
#8
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Posted 15 September 2005 - 08:35 PM
My favourite answer for the Syntax error was
PRUNT "Enter a number"
So simple, and yet when our teacher read that out as a possible answer I found it hilarious!
Maybe it was just me...
PRUNT "Enter a number"
So simple, and yet when our teacher read that out as a possible answer I found it hilarious!
Maybe it was just me...
Mark
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Posted 21 September 2005 - 08:45 PM
QUOTE(Rocky @ Sep 15 2005, 03:13 PM)
1- (a) What is a module library?
(b) State 2 features which make modules portable.
2- (a) Explain what robust and fit for the purpose means.
(b) Describe 2 features of a structured listing.
3- Explain what is meant by the term "passed by value" in relation to paramters.
4- Use code of programming eviroment with which you are familiat to illustrate ONE example of a syntax error and ONE logic error.
*If you can help with some of the Qs, it'd be ok.
(b) State 2 features which make modules portable.
2- (a) Explain what robust and fit for the purpose means.
(b) Describe 2 features of a structured listing.
3- Explain what is meant by the term "passed by value" in relation to paramters.
4- Use code of programming eviroment with which you are familiat to illustrate ONE example of a syntax error and ONE logic error.
*If you can help with some of the Qs, it'd be ok.
#10
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Posted 21 September 2005 - 09:03 PM
1- (a) What is a module library?
(b) State 2 features which make modules portable.
A module library is a collection of pre-written procedures/functions which have been tested for correctness, reliability etc. These would be used to help create /modify other programs more quickly. The code in such libraries is generally high-level and so compilation is not involved.
Modules are portable if the code is high-level, and, if the procedures are closed and use parameter passing they are also easier to modify, so increasing their portability. High level code that conforms to some recognised standard for the language used also aids portability.
(b) State 2 features which make modules portable.
A module library is a collection of pre-written procedures/functions which have been tested for correctness, reliability etc. These would be used to help create /modify other programs more quickly. The code in such libraries is generally high-level and so compilation is not involved.
Modules are portable if the code is high-level, and, if the procedures are closed and use parameter passing they are also easier to modify, so increasing their portability. High level code that conforms to some recognised standard for the language used also aids portability.
#11
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Posted 21 September 2005 - 10:04 PM
are u sure they are not compiled and they are not portable because they are high level because high level code means nothing to a computer so would need to be interpreted.
i get the impression u see a module library as a file where u copy and paste procedures. Where it really is a file which to declare in the main part of ur project which library you will be calling to
a very good example of this is in JAVA but also VB uses this a lot when u wish to use parts of windows in your project
i get the impression u see a module library as a file where u copy and paste procedures. Where it really is a file which to declare in the main part of ur project which library you will be calling to
a very good example of this is in JAVA but also VB uses this a lot when u wish to use parts of windows in your project
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Posted 22 September 2005 - 12:19 AM
DLLs?
Yaar, they're already compiled to machine code.
Yaar, they're already compiled to machine code.
<MrBob> I hate Uni. At least in film studies we get to talk about Fight Club.
<@X-Factor> Wouldnt you be breaking the first 2 rules?
<@X-Factor> Wouldnt you be breaking the first 2 rules?
#13
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Posted 22 September 2005 - 11:19 AM
yes they are
however there is an important point here, for higher you seriously dont need to know that much detail on a module library
however there is an important point here, for higher you seriously dont need to know that much detail on a module library
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