IB Computer Science HL · Core — SL & HL
System Fundamentals
Systems in organizations, system design basics and data loss/security — this topic is almost entirely "discuss/evaluate" command terms, so a correct fact stated without the required justification or comparison caps the mark at AO2, not AO3.
1.1 Systems in organizations
- Identify the context for which a new system is planned.
- Describe the need for change management.
- Outline compatibility issues resulting from situations including legacy systems or business mergers.
- Compare the implementation of systems using a client's hardware with hosting systems remotely.
- Evaluate alternative installation processes.
- Discuss problems that may arise as a part of data migration.
- Suggest various types of testing.
- Describe the importance of user documentation.
- Evaluate different methods of providing user documentation.
- Evaluate different methods of delivering user training.
- Identify a range of causes of data loss.
- Outline the consequences of data loss in a specified situation.
- Describe a range of methods that can be used to prevent data loss.
- Describe strategies for managing releases and updates.
1.2 System design basics
- Define the terms: hardware, software, peripheral, network, human resources.
- Describe the roles that a computer can take in a networked world.
- Discuss the social and ethical issues associated with a networked world.
- Identify the relevant stakeholders when planning a new system.
- Describe methods of obtaining requirements from stakeholders.
- Describe appropriate techniques for gathering the information needed to arrive at a workable solution.
- Construct suitable representations to illustrate system requirements.
- Describe the purpose of prototypes to demonstrate the proposed system to the client.
- Discuss the importance of iteration during the design process.
- Explain the possible consequences of failing to involve the end-user in the design process.
- Discuss the social and ethical issues associated with the introduction of new IT systems.
- Define the term usability.
- Identify a range of usability problems with commonly used digital devices.
- Identify methods that can be used to improve the accessibility of systems.
- Identify a range of usability problems that can occur in a system.
- Discuss the moral, ethical, social, economic and environmental implications of the interaction between humans and machines.
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