Business Information Systems, System Considerations. Essay

1526 words - 6 pages

Unit 3 Business Information SystemsAssignment No.4- System Considerations.Q1) A document is required by a horticultural supplier, to capture customer orders for batch scanning into the computerised Sales Order Processing system. The document will be included in the catalogue which is sent to customers.Plants and tools are sold in units or multi-packs, pre-packed fertilisers, etc are sold in sacks and loose materials by weight. Customers can order up to 10 items at a time and can request delivery to their own address or to a different address.Use a word-processing or spreadsheet application to prepare and print out a template that can capture the customer and order information. Show clearly how many characters are allowed in each field.Title (Mr/Mrs/Miss/Ms)ForenameSurnameAddressTownCountyPostcodeTelephone NumberDate of Birth (DD/MM/YYYY) / /Email AddressPage Number Catalogue Number Price of Each Quantity Weight (Kg) Total Price. .. .. .. .. .. .. .. .. .. .Q2)a) List the main stages of the systems life cycle.b) Explain briefly why the systems life cycle is a useful concept.c) Give an example of when and where it might be applied.The main stages of the systems life cycle are:1. Project Definition.2. Systems Analysis.3. Systems Design.4. Implementation.5. Integration and Testing.6. Acceptance, Installation, Deployment.7. Post-implementation.8. Operation and Maintenance.The systems life cycle is useful in many ways:1. A large project is broken down into several stages.2. Project work maintains consistency and planning.3. Auditing is possible using the systems life cycle as is the ability to plan ahead and make accurate estimates of costs and time to take.4. A project can be shown in design before it is actually constructed and thus changed if necessary to meet new requirements.5. The client for whom the project is being constructed can have a say throughout the process as the project is developed.An example of when and where it may be applied could be in a design for a new operating system. The project would be defined and users spoken to, to analyse requirements. The design could be created then tested and deployed as a beta upon test users. After successful deployment and testing, patches could be created for fixes for future discovered bugs in software behaviour.Q3)a) List the main physical and operational requirements of business systems.b) Compare how these requirements can maintain the integrity of information in a business system.c) Take two examples of physical requirements and two of the operational requirements and describe:i. The impact that the requirements have on the business environment.ii. The importance of the requirements to the business environment.a) The main Physical requirements of business systems are:1. Physical security of data.2. The privacy of data stored.3. The protection of software and hardware.The main Operational requirements of business systems are:1. Health and Safety Issues.2. Copyright and data protection...

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