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Database development Lifecycle
| Institution | Jomo Kenyatta University of Science and Technology |
| Course | Information Technol... |
| Year | 2nd Year |
| Semester | Unknown |
| Posted By | Jeff Odhiambo |
| File Type | doc |
| Pages | |
| File Size | 38 KB |
| Views | 1729 |
| Downloads | 0 |
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Description
The Database Development Lifecycle (DBLC) is a structured process for designing, implementing, and maintaining a database system to meet specific organizational needs. It consists of several phases: requirements analysis, where data needs are identified; conceptual design, where data relationships and models are created; logical design, where data structures are refined for the database management system; physical design, involving the implementation of the database on specific hardware and software; implementation, where the database is developed and populated with data; and testing, deployment, and maintenance, ensuring functionality, performance, and updates as needed. This lifecycle ensures systematic development, scalability, and efficient data management.
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IO Device Management
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I/O (Input/Output) device management refers to the process of controlling and coordinating the operations of input and output devices within a computer system. This is typically handled by the operating system to ensure that data is transferred efficiently between the CPU, memory, and I/O devices.
3 Pages
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Memory Management
Memory management refers to the process of efficiently allocating, organizing, and using computer memory in a system to ensure optimal performance and stability. It is a critical function of an operating system (OS) and is essential for executing programs and processing data.
6 Pages
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Operating Systems Design and Implementation
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Systems Design refers to the process of defining the architecture, components, modules, interfaces, and data for a system to meet specified requirements. It is the blueprint for how the system will operate and interact with other systems or users. This phase follows the analysis phase in the systems development life cycle (SDLC).
Systems Implementation is the phase where the designed system is developed, tested, and deployed. It involves translating the plans into an operational system that meets user needs. Implementation often includes installation, configuration, training, and ongoing support.
1106 Pages
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21.97 MB
Operating System Exercise Questions
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Components of a thread which are not shared
Components of a thread which are shared
Benefits of threaded execution
Models of threads and for each explain advantages and disadvantages
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10.29 KB
ICS 2202: Internal and design Principles
Internal principles define the core components, structures, and processes that ensure an IT system operates efficiently, reliably, and securely.Design principles focus on creating systems that are usable, maintainable, and aligned with business needs.
3475 Pages
1939 Views
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31.24 MB
ICS 2202: Process Co-ordination
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When a process is being executed, the operating system must store information about a
process in a PCB. When scheduler switches CPU from executing one process to another, context
switcher saves the contents of all processor registers in process descriptor. That is, the context of
a process is represented in a PCB of a process.
5 Pages
2004 Views
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251.41 KB
ICS 2202: Process Management
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Process Management refers to the planning, monitoring, and controlling of activities involved in achieving specific goals or outputs within an organization or system. It ensures that processes are executed efficiently and effectively, using available resources while maintaining quality, consistency, and alignment with organizational objectives.
5 Pages
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248.85 KB
ICS 2202: Processor
A processor, also known as a central processing unit (CPU), is the primary component of a computer that performs most of the processing inside the system. It acts as the "brain" of the computer, interpreting and executing instructions from software programs.
2 Pages
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123.84 KB
ICS 2202: Protection and security
Protection and security are critical aspects of an operating system (OS) that ensure the integrity, confidentiality, and availability of data and system resources.
5 Pages
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173.71 KB