Systems Analysis and Design

Interview Questions

System Analysis involves studying existing systems and identifying improvements, while System Design is the process of creating the architecture for the new system.
A feasibility study assesses the practicality and viability of a proposed system, considering technical, economic, legal, and operational aspects before committing resources.
Requirements can be gathered through interviews, surveys, observations, and workshops, ensuring a comprehensive understanding of user needs and expectations.
A DFD visually represents the flow of data within a system, helping analysts understand processes, data stores, and interactions, facilitating a structured analysis.
Normalization is the process of organizing data in a database to reduce redundancy and dependency, ensuring data integrity and efficient storage.
Waterfall follows a linear, sequential approach, while Agile is iterative and flexible, allowing for incremental development and quick adaptation to changing requirements.
Use case diagrams illustrate interactions between actors and the system, helping to identify and clarify system functionalities from a user\'s perspective.
Security considerations involve encryption, access controls, authentication mechanisms, and regular security audits to safeguard the system from unauthorized access and threats.
A prototype provides a tangible representation of the system, allowing stakeholders to visualize and test functionalities before full-scale development, ensuring alignment with requirements.
Scalability refers to a system\'s ability to handle increased load and growth without sacrificing performance. It ensures the system can adapt to changing demands.

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