[Year 12 SofDev] Diagrams in the SRS - of which system?
Paragreen, Chris J
paragreen.chris.j at edumail.vic.gov.au
Mon Mar 20 10:21:28 AEDT 2017
Hi David,
I don’t think there’s any dispute that the SRS is for the new system. The uncertainty is in the role the UCDs and DFDs are playing within the document. Personally I still agree with you that I think they should be of the new system (and in the previous study design I also had students create diagrams for both the old and the new systems), but clearly not everyone thinks so.
Regards,
Chris
From: sofdev-bounces at edulists.com.au [mailto:sofdev-bounces at edulists.com.au] On Behalf Of David Dawson
Sent: Monday, 20 March 2017 10:01 AM
To: Year 12 Software Development Teachers' Mailing List <sofdev at edulists.com.au>
Subject: Re: [Year 12 SofDev] Diagrams in the SRS - of which system?
Hi All
I am actually a little surprised to read that so many of us seem to think that an SRS is not for the PROPOSED system.
All of the top ten links in Google for “Purpose of an SRS” – show that the SRS is specifically for the NEW system being developed – to set the parameters for the later detailed Design of the new system.
When I did one of these SRS for my industry project in 3rd year uni – it had details in terms of UML and DFDs that went all the way to describing the code (eventually). This was all for the system we were developing.
WikiPedia starts with :
A software requirements specification (SRS) is a description of a software system<https://en.wikipedia.org/wiki/Software_system> to be developed. It lays out functional<https://en.wikipedia.org/wiki/Functional_requirement> and non-functional requirements<https://en.wikipedia.org/wiki/Non-functional_requirements>, and may include a set of use cases<https://en.wikipedia.org/wiki/Use_case> that describe user interactions that the software must provide.
(bold text is mine)
At RMIT the students are currently doing SRS for the systems they are developing – not for old systems. In my opinion, in the real world it would be a complete waste of time and resources to do an SRS for an old system. The SRS describes fully the system to be developed.
Of course company goals need to be considered, along with the old system in an Investigation (Observation and mapping of what happens in the old system) and Feasibility Analysis stage – but I struggle to see this material appearing in an SRS defining the new system.
However, I will say that in the past I have had students do DFDs for BOTH systems – when an old one was to be replaced!
I have attached a “simple” SRS downloaded from University of Texas – which mentions nothing of the old system.
Why can’t students do this SRS for their NEW system? I also have a few developing a game – which will make this even more problematic.
David Dawson
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From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au> [mailto:sofdev-bounces at edulists.com.au] On Behalf Of ATKINSON-BUCK, Damien
Sent: Monday, 20 March 2017 9:10 AM
To: Year 12 Software Development Teachers' Mailing List
Subject: Re: [Year 12 SofDev] Diagrams in the SRS - of which system?
Hi Tony,
I’d suggest that anything (with the possible exception of a new game) has an existing system of some sort. If the student has found a real client that wants something done, then they would have to currently do it somehow. Do you have an example?
The student I have that is having the most difficulty with getting this into a diagram is looking at his pantry stock for expiry dates, but even still the existing system is a manual one. He had to do some lateral thinking to get it, but it was there.
Cheers
Damien
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From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au> [mailto:sofdev-bounces at edulists.com.au] On Behalf Of Tony Crewe
Sent: Monday, 20 March 2017 8:22 AM
To: Year 12 Software Development Teachers' Mailing List <sofdev at edulists.com.au<mailto:sofdev at edulists.com.au>>
Subject: Re: [Year 12 SofDev] Diagrams in the SRS - of which system?
Thanks Phil,
As you will see from previous discussions, what if the need or opportunity has no existing system - manual or digital. Do students just omit that analysis without penalty?
Then do their requirements, scope etc for their proposed solution.
Tony
Sent from my iPad
> On 20 Mar 2017, at 8:14 am, Feain, Philip A <feain.philip.a at edumail.vic.gov.au<mailto:feain.philip.a at edumail.vic.gov.au>> wrote:
>
> Dear All
>
> That's the existing information system for the diagrams and proposed solution for the SRS. The diagrams can go in the appendices of the SRS.
>
> Kind Regards
>
> Phil Feain.
>
> Sent from my iPhone
>
>> On 20 Mar 2017, at 8:06 am, Feain, Philip A <feain.philip.a at edumail.vic.gov.au<mailto:feain.philip.a at edumail.vic.gov.au>> wrote:
>>
>> Dear All
>>
>> I have to agree with James. We are talking about the existing system for analysis. Students will draw the required diagrams and the do the SRS.
>>
>> Kind Regards
>>
>> Phil Feain.
>>
>> Sent from my iPhone
>>
>>> On 19 Mar 2017, at 2:58 pm, Vella, James <jvella at mackillop.vic.edu.au<mailto:jvella at mackillop.vic.edu.au>> wrote:
>>>
>>> The diagrams should be of the existing system or process.
>>>
>>> Regardless of whether students are looking to meet a need or opportunity, there is almost always some existing system or manual process in place.
>>>
>>> The SRS is part of the Analysis stage - not the Design stage.
>>>
>>> Regards
>>>
>>> James
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>>> Today's Topics:
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>>> 1. Diagrams in the SRS - of which system? (Lisa Kerekes) 2. Re:
>>> Diagrams in the SRS - of which system? (Tony Crewe)
>>>
>>>
>>> --------------------------------------------------------------------
>>> --
>>>
>>> Message: 1
>>> Date: Fri, 17 Mar 2017 03:14:21 +0000
>>> From: Lisa Kerekes <Lisa.Kerekes at donvale.vic.edu.au<mailto:Lisa.Kerekes at donvale.vic.edu.au>>
>>> Subject: [Year 12 SofDev] Diagrams in the SRS - of which system?
>>> To: "Year 12 Software Development Teachers' Mailing List"
>>> <sofdev at edulists.com.au<mailto:sofdev at edulists.com.au>>
>>> Message-ID:
>>> <c112a04d34714ca78b79283e0f369dfb at MAIL03.donvale.vic.edu.au<mailto:c112a04d34714ca78b79283e0f369dfb at MAIL03.donvale.vic.edu.au>>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> Hi all,
>>>
>>> Just seeking clarification/confirmation as to whether the diagrams
>>> in the SRS (the Use Case & Context & DFDs) - ought to be
>>>
>>>
>>> - of the client's existing system (if they have one)
>>> or
>>>
>>> - of the student's proposed solution
>>>
>>> I guess I'm asking whether the diagrams are more useful to be drawn so students can grasp how the current system works ... or to plan how their solution should function.
>>>
>>> Page 2 of VCAA's Admin Info for SBA<http://www.vcaa.vic.edu.au/Documents/vce/SBA_General.pdf> suggests that the majority of the SRS is written to describe the new solution, based on data collected about the existing one. "An analysis that defines the requirements, constraints and scope of a solution in the form of a software requirements specification"
>>>
>>> Assessment Criteria 3 reads:
>>> "Draws a set of logical conclusions with most being consistent with the data represented in the analytical tools."
>>>
>>>
>>> Thanks,
>>> Lisa Kerekes
>>> Secondary Teacher (Computing, Media)
>>> Phone: (03) 9844 2471 Ext: 266
>>>
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>>>
>>> Message: 2
>>> Date: Fri, 17 Mar 2017 03:26:58 +0000
>>> From: Tony Crewe <TonyCrewe at caulfieldgs.vic.edu.au<mailto:TonyCrewe at caulfieldgs.vic.edu.au>>
>>> Subject: Re: [Year 12 SofDev] Diagrams in the SRS - of which system?
>>> To: "Year 12 Software Development Teachers' Mailing List"
>>> <sofdev at edulists.com.au<mailto:sofdev at edulists.com.au>>
>>> Message-ID:
>>>
>>> <SYXPR01MB022351185852B381E5DA06B7CF390 at SYXPR01MB0223.ausprd01.prod.
>>> outlook.com>
>>>
>>> Content-Type: text/plain; charset="us-ascii"
>>>
>>> I think best for proposed solution,
>>>
>>> A number of students create solution based on a need or opportunity rather than an existingsituation in any case.
>>>
>>> Tony
>>>
>>> From: sofdev-bounces at edulists.com.au<mailto:sofdev-bounces at edulists.com.au>
>>> [mailto:sofdev-bounces at edulists.com.au] On Behalf Of Lisa Kerekes
>>> Sent: Friday, 17 March 2017 2:14 PM
>>> To: Year 12 Software Development Teachers' Mailing List
>>> <sofdev at edulists.com.au<mailto:sofdev at edulists.com.au>>
>>> Subject: [Year 12 SofDev] Diagrams in the SRS - of which system?
>>>
>>> Hi all,
>>>
>>> Just seeking clarification/confirmation as to whether the diagrams
>>> in the SRS (the Use Case & Context & DFDs) - ought to be
>>>
>>> - of the client's existing system (if they have one)
>>> or
>>>
>>> - of the student's proposed solution
>>> I guess I'm asking whether the diagrams are more useful to be drawn so students can grasp how the current system works ... or to plan how their solution should function.
>>>
>>> Page 2 of VCAA's Admin Info for SBA<http://www.vcaa.vic.edu.au/Documents/vce/SBA_General.pdf> suggests that the majority of the SRS is written to describe the new solution, based on data collected about the existing one. "An analysis that defines the requirements, constraints and scope of a solution in the form of a software requirements specification"
>>>
>>> Assessment Criteria 3 reads:
>>> "Draws a set of logical conclusions with most being consistent with the data represented in the analytical tools."
>>>
>>>
>>> Thanks,
>>> Lisa Kerekes
>>> Secondary Teacher (Computing, Media)
>>> Phone: (03) 9844 2471 Ext: 266
>>>
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