IB Computer Science Higher Level
Full course content, a smart revision plan and instant past paper feedback for IB Computer Science Higher Level.
Content Overview
50 topics in 13 modules
☑️ System Fundamentals 7 topics
- Planning and System Instalation
- User Focus
- System Backup
- Software Development
- Components of a Computer System
- System Design and Analysis
- Human Interaction with the System
☑️ Computer Organization 5 topics
- Computer Architecture
- Secondary Memory
- Operating Systems and Application Systems
- Binary Representation
- Simple Logic Gates
☑️ Networks 3 topics
- Network Fundamentals
- Data Transmission
- Wireless Networking
☑️ Computational Thinking, Problem-Solving and Programming 5 topics
- Thinking Procedurally
- Thinking Logically
- Thinking Ahead
- Thinking Cocurrently
- Thinking Abstractly
☑️ Connecting Computational Thinking and Program Design 1 topic
- Connecting Computational Thinking, Problem-Solving and Programming
☑️ Introduction to Programming 2 topics
- Nature of Programming Languages
- Use of Programming Languages
☑️ Abstract Data Structures 5 topics
- Thinking Recursively
- Abstract Data Structures
- Linked Lists
- Trees
- Applications
☑️ Resource Management 2 topics
- System Resources
- Role of the Operating System
☑️ Control 2 topics
- Centralized Control Systems
- Distributed Systems
☑️ Databases 4 topics
- Basic Concepts
- The Relational Database Model
- Further Aspects of Database Management
- Further Database Models and Database Analysis
☑️ Modelling and Simulation 4 topics
- The Basic Model
- Simulations
- Visualization
- Communication Modelling and Simulation
☑️ Web Science 6 topics
- Creating the Web
- Searching the Web
- Distributed Approaches to the Web
- The Evolving Web
- Analysing the Web
- The Intelligent Web
☑️ Object-Oriented Programming 4 topics
- Objects as a Programming Concept
- Features of OOP
- Program Development
- Advanced Program Development
IB Computer Science Higher Level Revision Content
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IB Computer Science Higher Level - System Fundamentals - Planning and System Instalation Content Preview
System Fundamentals
Planning and System Instalation
Planning a System
- Begin with defining the problem. Understand your users' needs and the business's requirements.
- Create a detailed problem statement. This should unequivocally outline what the new software system is expected to achieve.
- Generate a requirements specification that provides a clear, comprehensive summary of what the system should do.
- Create process-modeling diagrams, flowcharts, or wireframes to visually illustrate the proposed system.
- Plan the system architecture, selecting the appropriate hardware, software, and network infrastructure.
- Evaluate and acknowledge the legal, ethical, and professional issues related to the new system.
- Consider risk assessment and disaster recovery planning. This ensures the system preparedness for unexpected crises.
- Plan for system testing. Testing confirms that the system works as intended and meets all outlined requirements. Include unit, integration, system, and acceptance testing stages.
System Installation
- Sequencing the installation process ensures a smooth transition from the old system to the new one.
- Implement the system either through direct changeover (the big bang approach), parallel running, phased implementation, or pilot running.
- Prepare a data migration plan if there's a need to move information from the old system to the new.
- Provide user training and support, making sure system users comprehend the functionalities of the new system.
- Schedule regular system maintenance to keep the system in good working condition. Include preventive, perfective, adaptive, and corrective maintenance.
- Utilize change control procedures when introducing alterations to the system after installation. This ensures any changes are appropriately managed and documented.
- Finally, understand the importance of the system retirement process. This is vital when the system becomes obsolete or if it no longer meets the organisation' needs. Plan for data archiving and disposal of hardware components.
Question: How does the process of phased implementation differ from the direct changeover approach in system installation?
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