chapter 2.1
chapter 2.2
chapter 2.3
chapter 2.4
chapter 2.5
chapter 2.6
chapter 2.7
chapter 2.8
chapter 2.9
Thursday, 17 February 2011
Tuesday, 15 February 2011
What AQA say - about TESTING
9. Testing of ICT-related solutions
Construct test plans that include a range of suitable test data, identify expected outcomes and test that the client’s requirements have been met.
A test plan that shows the design of representative examples of tests to ensure:
• Validity of data input
• Accuracy of output
• Presentation of output
• That the solution meets the requirements of the client
• That the solution is usable by the end user(s) and/or intended audience
• That it incorporates the data to be used for testing the solution and the expected results of each test.
Follow test plan in a systematic way.
Testing evidence - that is cross-referenced to the test plan.
Testing evidence that is clearly annotated to show an understanding of the testing process.
Interpret the results of tests and take appropriate action.
The results of testing evidence are used in the evaluation of the solution.
Monday, 14 February 2011
homework INFO2 hand in by 1/3/2011
1.1 Knowledge , Information & Data
January 2001
1. Three components of an Information Processing System are input, processing and output. State what is meant by:
- input
- processing
- output
and give an example of each one. (6 marks)
2. When incorrect bills are sent to customers, an organisation often gives the reason as “The computer got it wrong”. Using an example, give a more likely explanation. (4 marks)
May 2001
1. Explain what is meant by Information and Communication Technology. (3 marks)
2 The expression “Garbage in, garbage out”, or “GIGO”, is often used in connection with information processing systems. Explain, using an example, what is meant by this expression. (4 marks)
January 2002
1. Explain, using examples, the following terms as they are applied within ICT:
(a) Data; (2 marks)
(b ) Information; (2 marks)
(c) Knowledge. (2 marks)
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1.2 Value and Importance of Information
January 2001
4. State three factors that affect the value and importance of information. Give an example that shows clearly how each factor affects the information’s value. (6 marks)
May 2001
3. A travel firm arranging package holidays in Spain for the 2001 season uses data obtained from a survey of their customers’ favourite holiday resorts in 1997. Explain
(a) why the data from 1997 might not be suitable for use to predict the requirements for 2001,
(b) what the effect on the company might be if it used the 1997 data. (4 marks)
---oOo---
1.3 Control of Information
January 2001
5. When buying a new house through a large estate agency, customers are asked if they object to the data they are giving to the estate agent being passed on to other companies.
(a) Explain why the estate agent must ask this question. (2 marks)
(b) State, with an example, what the estate agent could do with the customers’ details if they give permission for them to be passed on. (2 marks)
---oOo---
1.4 Capabilities and Limitations of ICT
May 2001
5 A supermarket chain operates an automatic ordering system between the stores and a central warehouse.
(a) State two advantages for the store of using an automatic system. (2 marks)
(b) Explain one advantage for the supermarket’s customers of the store using an automatic stock
control system. (2 marks)
January 2002
3. When ordering goods by telephone many companies ask the purchaser for his or her postcode. They then use this to confirm the address of the purchaser by looking up the postcode in a database of codes.
Explain two reasons why companies prefer to buy a database of postcodes rather than to collect the data from the purchasers. (4 marks)
nnnn
.5 Social impact of ICT
January 2001
10. The use of Information and Communication Technology (ICT) has brought benefits to a number of areas.
For each of the following, state a use of ICT, and describe the benefit that can be gained. Your examples must be different in each case.
(a) Education
(b) Health
(c) The home
(d) Offices
(e) Manufacturing companies
(f) Police
(12 marks)
1.6 Communication Systems
January 2001
6. The use of e-mail has increased dramatically over the last five years. This has improved communications both internally within a company, and externally between companies and their suppliers and customers.
Describe the facilities of an e-mail software package that you would use to carry out the following tasks efficiently.
(a) Pass on an e-mail message that you have received, in error, from a customer to the sales manager. (2 marks)
(b) Inform a group of staff about the time and date of a meeting. (2 marks)
(c) Send designs of a new product to the manufacturing department. (2 marks)
(d) Send an important and urgent message to a supplier. (2 marks)
May 2001
6 (a) Browsers and search engines are two items that are associated with the use of the Internet Explain what is meant by:
(i) a browser (2 marks)
(ii) a search engine. (2 marks)
(b) In order to use the Internet, the owner of a PC at home normally needs to register with an Internet Service Provider (ISP). State two services, in addition to e-mail, that an ISP could provide.
(2 marks)
(c) Changes in technology now mean that it is no longer necessary to have a PC to be able to use some Internet services. Give two devices that can be used instead. (2 marks)
(d) Explain why it is possible to send e-mail successfully to someone who has not got his or her PC switched on. (2 mark)
May 2001
4 Mrs Jones has bought a book on gardening from a book company on the World Wide Web. She has now started to receive e-mails about garden furniture, and plant catalogues through the post.
(a) Explain why Mrs Jones has started to receive the e-mails and the catalogues. (2 marks)
(b) Some people are worried about ordering goods using credit cards over the Internet. Explain what can be done by the book company to prevent credit card details being misused. (2 marks)
12. A firm of engineers in the United Kingdom has been given the task of designing a new building in Australia. As one of their methods of communicating with their clients, it has been suggested that the company uses videoconferencing.
(a) Explain what is meant by the term videoconferencing. (4 marks)
(b) Give two advantages and two disadvantages to a company of using this approach as compared with non-ICT methods. (4 marks)
January 2002
6. What do the following features, available with most email software, allow the user to do?
(a) Forward (2 marks)
(b) Reply (2 marks)
(c) Send/receive (2 marks)
(d) Attach (2 marks)
(e ) Prioritise (2 marks)
January 2002
9.A large clothing retailer has decided to set up an on-line store.
(a) Explain two advantages to the retailer of using this method of selling as opposed to selling from a high street shop. (4 marks)
(b ) Explain one advantage to the customer of using the on-line store rather than a high street shop. (2 marks)
(c ) State one disadvantage to the customer of using the on-line store rather than a high street shop. (1 mark)
(d ) Describe two ways in which the retailer could make use of the Internet to publicise its new service. (4 marks)
1.7 Information and the professional
January 2001
3 A company is recruiting a new member of staff for their IT support desk. The head of personnel asks the manager of the support desk what personal qualities the new employee must have in order to carry out the job effectively. State, with reasons, four personal qualities that the manager would want a new employee to have. (8 marks)
May 2001
8 An advertisement for an IT support worker to join the PC support team in a company specifies that the applicant must be “willing to work flexible hours, be able to communicate well orally, have good written skills and get on well with a wide variety of people”.
Explain, giving examples, why each of these characteristics is important for someone working in such a role. (8 marks)
January 2002
2. Professionals involved with ICT systems often have to work with people who have little, or no, understanding of the ICT systems that they are using.
State two personal qualities that IT professionals should have that will enable them to help such people effectively. and give an example of when each quality would be needed. (4 marks)
1.8 Malpractice and Crime
January 2001
7 A school wishes to allow its students unrestricted access to the Internet for research work during their lunchtimes. The headteacher is concerned that this might cause problems.
State two problems that the headteacher might be concerned about, and for each one explain a measure that could be taken to prevent the problem. (6 marks)
May 2001
11 Explain, with reasons, two levels of access that could be given to different categories of users of an on-line stock control system. (4 marks)
January 2002
4. Explain, using examples, four different ways in which the Internet is being used to support illegal activities. (8 marks)
5. Information Systems need to be protected from both internal and external threats
(a) Explain: using examples, the differences between an internal and an external threat to an
Information System. (4 marks)
(b) For each of the following, describe a measure that a company can take to protect their Information System from:
(i) Internal threats; (2 marks)
(ii) External threats. (2 marks)
1.9.1 Legal Frame Work - Copyright etc.
May 2001
7 (a) Describe what is meant by a software licensing agreement. (2 marks)
(b) Mr Patel has a single user software licensing agreement for a word processing package which
specifies that there must only be one copy in use at any one time.
Would he be guilty of breaking the agreement if he installed the package on his laptop PC, as well
as on his stand-alone PC at work. Explain your answer. (2 marks)
(c) A college network has a server and 20 stations. What type of licensing agreement would be suitable
for a word processing package that may be used at the same time on all 20 stations? (2 marks)
(d) Breaking the licensing agreement is one type of offence that a computer user can commit. Some other offences are covered by the Computer Misuse Act.
Explain, using examples, level 1, 2 and 3 offences under the Computer Misuse Act. (9 marks)
1.9.2 Legal Framework - Data Protection Act
January 2001
8 (a) State five of the principles of the 1998 Data Protection Act. (5 marks)
(b) Describe two exemptions to the 1998 Data Protection Act. (4 marks)
May 2001
10 (a) State why an organisation must apply for entry on to the Data Protection Register. (I mark)
(b) State three items of information that must be provided by the data user about the data that is to be stored. (3 marks)
January 2002
7 Data protection legislation was introduced into the UK in 1984; it has since been superseded by the 1998 Act.
(a) State why the legislation was originally introduced. (I mark)
(b) State what type of data is the subject of the Data Protection Act 1998. (2 marks)
(c ) A company wishes to collect data from order forms submitted by its customers to sell to other
companies.
State two actions that the company must take so that it can legally collect and sell that data.
(2 marks)
(d) The Data Protection Act gives individuals the right to see what data is being held about them.
(i) State how an individual must ask to do this. (1 mark)
(ii) Could an individual have to pay to receive a copy of his or her data? (1 mark)
1.9.3 Legal Framework - Health & Safety
January 2001
9 Describe three features of poorly designed software that can cause stress or other health problems to a user. (6 marks)
May 2001
7. Poorly designed computer workstations can lead to health problems. State three features of a well-designed workstation, and for each one state the health hazard that will be prevented. (6 marks)
January 2002
8. A clerk working at the offices of a mail order company spends all day entering order data into the company’s sales order processing system. The clerk uses a workstation linked to the company’s main computer.
To ensure the health and safety of the clerk, state, with reasons:
(a) two work practice procedures that the company could introduce; (4 marks)
(b) two design features that the hardware the clerk uses should have; (4 marks)
(c) two design features that the software the clerk uses should have. (4 marks)
Monday, 7 February 2011
e-commerce question - what the examiner said
Question 5(a)
This question required candidates to apply their knowledge of backup and recovery to a
continuous e-commerce operation. Few candidates related their answers to the context of the question.
Most candidates were able to collect some marks on this question by discussing backup
strategies including: the type of backup, the frequency of backup, the timing of backup (e.g. at midnight), the choice of medium, the location of the backup and the personnel responsible for backups. Credit was awarded for discussing techniques such as disk mirroring and RAID.
Rarely did answers include the recovery of data and the need to complete recovery quickly to ensure continuity of service.
Information and Communication Technology - AQA GCE Report on the Examination 2009 June series
4
Question 5(b)
Three types of processing were acceptable (Transaction (or pseudo real-time), Interactive and Batch) and the best answers discussed how these types of processing could be useful in ecommerce.
Batch Processing was acceptable, because an e-commerce organisation would
still have a payroll run or the need to print out address labels for mail-shots.
Weaker candidates did not answer in the context of e-commerce and merely explained what
was meant by each of the processing types and couldn’t gain good marks for their answers.
Question 5(c)
E-commerce covers a wide spectrum of business on-line, such as on-line booking and banking.
The meaning of society was taken in its widest sense when awarding credit.
Implications of e-commerce such as: reduced travel costs, reduced pollution, loss of social
interaction, a sedentary life-style, increased opportunity for crimes such as credit card fraud or identity theft, all gained credit.
Sunday, 6 February 2011
homework INFO2 hand in by 14/02/2011
Homework
or
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