Aqa info 3 - 12/06/2012

Im ****tin bricks for this exam

Reply 62

Can someone please explain to me about Bespoke vs Off the Shelf please. It's in neither of my A2 Textbooks.

Thanks.

Reply 63

Original post by Indyy

Can someone please explain to me about Bespoke vs Off the Shelf please. It's in neither of my A2 Textbooks.

Thanks.

Bespoke software is made specifically for an organisations purpose. It's usually for a single end-user. You cant get this off the shelf and it is tailor made to meet the requirements and functionality of the organisation.
From the pre-release, it shows that Endurance want to use a Bespoke solution

"Hope" want to have a pre-packaged/off-the-shelf software which is available to buy any time. It is usually generic software, e.g. spreadsheets which are used for accounts. It's not specific to the organisation and is available for everyone to buy.

Hope that helped.

Reply 64

Original post by xMaGic

Bespoke software is made specifically for an organisations purpose. It's usually for a single end-user. You cant get this off the shelf and it is tailor made to meet the requirements and functionality of the organisation.
From the pre-release, it shows that Endurance want to use a Bespoke solution

"Hope" want to have a pre-packaged/off-the-shelf software which is available to buy any time. It is usually generic software, e.g. spreadsheets which are used for accounts. It's not specific to the organisation and is available for everyone to buy.

Hope that helped.

Thanks.

If a question comes up on this, are there any key advantages and disadvantages to mention?

Reply 65

Original post by Indyy

Thanks.

If a question comes up on this, are there any key advantages and disadvantages to mention?

Um from the top of my head

Advantages for bespoke:
More specific to organisation (particular functions can be requested by the client for the system to include, this cant be done with off-the-shelf as that is generic)
Integrate it with other systems
Easier to use as it is made specifically for the organisation
Improve efficiency/work of organisation

Disadvantage:
High cost
Time-consuming; takes a lot of time producing the system (Systems development life cycle)
The staff may need training to use it

Advantages of generic:
Training may not be needed as these are generic softwares.
Cheap
Can be purchased any time, so no time-constraints

Disadvantages:
Not specific for the organisation
May not include all the functionality needed by the organisation

Reply 66

Original post by xMaGic

Um from the top of my head

Advantages for bespoke:
More specific to organisation (particular functions can be requested by the client for the system to include, this cant be done with off-the-shelf as that is generic)
Integrate it with other systems
Easier to use as it is made specifically for the organisation
Improve efficiency/work of organisation

Disadvantage:
High cost
Time-consuming; takes a lot of time producing the system (Systems development life cycle)
The staff may need training to use it

Advantages of generic:
Training may not be needed as these are generic softwares.
Cheap
Can be purchased any time, so no time-constraints

Disadvantages:
Not specific for the organisation
May not include all the functionality needed by the organisation

Thank you very much.

Reply 67

Different types of testing during the SDLC:

Functional testing - checks the system being developed meets both the system and business requirements It involves checking the validity of formulas and calculations as well as testing that the user interface works as it should.

System Testing - Once software used by the system has been tested, the whole system can be tested. It is tested by using certain hardware, users and environment which match the system being used in the real-life situation

Operational Testing - Testing performed by the end-user on software which is being used in its normal operating environment.

User Testing - Allows teams of users to test the software for ease of use, consistency of design, links that do not work, use of language, graphics ,etc Usually this is done by giving the users a questionnaire.

Reply 68

Anyone have condensed note on INFO3? There's no way I'm getting through it in 2nights -_-

Reply 69

Techniques for testing

Test harnesses; are used in software testing for automating the testing process. Test harnesses consist of software and test data which will run the developed programming code under different conditions and monitor its output against the output that should have been produced. The main advantage in using test harnesses is that they automate some of the testing and this means its quicker and the quality of the final software is better.

Prototyping; this involves producing working versions of the ICT system at different stages during its development. The user is given each version to test and evaluate and any problems can be ironed out before the next improved version is produced.
It's a quick way to get feedback from users, you involve the users right from the start so you end up with a product that matches the user requirements and expectations. This is a much better way than to leave it to the end.

Scalability testing; is a type of performance testing focused on ensuring the application under test is able to cope in an increased workload.

Multi-platform testing; is aimed at demonstrating software can be ported to specified hardware or software platforms. (ensures it can be transferred to other software and be compatible with the hardware/software)

Volume testing; confirms that any values that may become large over time (such as accumulated counts, logs and data files) can be held by the program and it will not cause it to crash or slow down.

Simulated environments; sometimes it is difficult to see how a large system will behave when used with hundreds of terminals until you use that many terminals. Therefore the use of simulated environments gets around this problem by behaving as though it is being used by large number of terminals, this allows the developer to test the system before it goes live.

Reply 70

Iterative vs Linear Methodologies?

Advantages and disadvantages?

Reply 71