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GCE MAY 2009 : A2 1 Development of Information Systems

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ADVANCED General Certificate of Education 2009 Information and Communication Technology assessing Module 4: Development of Information Systems A2W11 Assessment Unit A2 1 [A2W11] MONDAY 11 MAY, MORNING TIME 1 hour 30 minutes. INSTRUCTIONS TO CANDIDATES Write your Centre Number and Candidate Number on the Answer Booklet provided. Answer all seven questions. INFORMATION FOR CANDIDATES The total mark for this paper is 90, including a maximum of 4 marks for quality of written communication. Figures in brackets printed down the right-hand side of pages indicate the marks awarded to each question or part question. 4414 Answer all seven questions. 1 (a) Data can be transmitted using fibre optic cable or co-axial cable. Compare these two types of cable in terms of: (i) Capacity. (ii) Signal interference. [4] (b) Describe how packet switching can be used for data transmission. 2 [6] A small business requires new payroll software. (a) Describe three ways in which a business could obtain new software and comment on the suitability of each in this case. [9] (b) Describe two ways in which the quality of software could be measured once it has been installed. [4] 3 An information system may be developed using the waterfall model or by prototyping. (a) Explain the role of the systems analyst in the waterfall model. [4] (b) Describe the main features of prototyping. [6] (c) Describe two reasons why prototyping might be preferred over the waterfall method. [4] 4 During system review it is reported that: Queries are taking a long time to run A particular report does not display the expected information. (a) Name and describe two types of software maintenance which will be required in this case. [6] (b) Describe one other reason why the system might require software maintenance. [2] During maintenance, a new module is added. (c) Describe the testing which will be required in this case. 4414 2 [4] [Turn over 5 One of the CASE tools which can be used during software development is a code generator. (a) Describe two benefits of using a code generator. (b) Name and describe the main features of three other types of CASE tool. 6 [4] [9] (a) Describe why each of the following is used on a network. (i) Auditing software (ii) Accounting software [6] (b) Describe the impact of each of the following factors on human computer interaction. (i) Ergonomical factors (ii) Psychological factors 7 [6] A college uses a relational database. Each pupil studies a number of subjects. Each subject has a number of modules. (a) Apart from many-to-many, state two ways in which entities can be related in a database. (b) Name three entities you would expect to find in the database. [3] (c) Draw a fully labelled Entity Relationship (ER) diagram, which does not contain a many-to-many relationship, for this system. 4414 [2] [7] 3 [Turn over 936-032-1 [Turn over

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Additional Info : Gce ICT May 2009 Assessment Unit A2 1, Module 4: Development of Information Systems
Tags : General Certificate of Education, A Level and AS Level, uk, council for the curriculum examinations and assessment, gce exam papers, gce a level and as level exam papers , gce past questions and answer, gce past question papers, ccea gce past papers, gce ccea past papers

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