Podcast
Questions and Answers
Which model emphasizes testing and verification throughout the development stages?
Which model emphasizes testing and verification throughout the development stages?
What is a key characteristic of the Incremental Model?
What is a key characteristic of the Incremental Model?
In which model do each of the phases need to be completed before the next phase can begin?
In which model do each of the phases need to be completed before the next phase can begin?
Which model is designed to gather user feedback through an initial version of the product?
Which model is designed to gather user feedback through an initial version of the product?
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What is the main focus of the Iterative Model in system development?
What is the main focus of the Iterative Model in system development?
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Which characteristic distinguishes modern life cycle models from traditional ones?
Which characteristic distinguishes modern life cycle models from traditional ones?
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What methodology emphasizes speed and user involvement throughout the development process?
What methodology emphasizes speed and user involvement throughout the development process?
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Which modern life cycle model focuses on short development cycles and includes defined roles?
Which modern life cycle model focuses on short development cycles and includes defined roles?
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What does the Kanban methodology primarily emphasize?
What does the Kanban methodology primarily emphasize?
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Which model combines development and operations to enhance automation and collaboration?
Which model combines development and operations to enhance automation and collaboration?
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In the context of modern life cycle models, what is the Spiral Model known for?
In the context of modern life cycle models, what is the Spiral Model known for?
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What is a key focus of Agile methodologies?
What is a key focus of Agile methodologies?
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Which of the following best describes the goal of modern life cycle models?
Which of the following best describes the goal of modern life cycle models?
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What is the main purpose of the planning phase in the SDLC?
What is the main purpose of the planning phase in the SDLC?
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Which phase involves generating alternative designs for an information system?
Which phase involves generating alternative designs for an information system?
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In which phase of the SDLC is the information system coded and tested?
In which phase of the SDLC is the information system coded and tested?
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What distinguishes physical design from logical design in the SDLC process?
What distinguishes physical design from logical design in the SDLC process?
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Which phase is the last in the SDLC process?
Which phase is the last in the SDLC process?
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How are the phases of the SDLC typically arranged?
How are the phases of the SDLC typically arranged?
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What is a key outcome of the analysis phase?
What is a key outcome of the analysis phase?
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Which deliverable is produced during the design phase of the SDLC?
Which deliverable is produced during the design phase of the SDLC?
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Study Notes
System Development Life Cycle (SDLC) Models
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Traditional Life Cycle Models typically use structured approaches in software development and system engineering processes.
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They follow a linear and sequential process, with clearly defined stages.
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Examples include the Waterfall Model, V-Model, Incremental Model, Iterative Model, and Prototype Model.
Learning Objectives
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Students should be able to identify traditional SDLC models.
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They should explain differences between different systems life cycle models.
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They should list all stages of the SDLC.
2.1 Traditional Life Cycle Models
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Waterfall Model: Linear where each phase (Requirements, Design, Implementation, Testing, Deployment, and Maintenance) must be completed before proceeding to the next phase.
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V-Model (Validation and Verification): Extends the Waterfall model by emphasizing testing and verification at each development stage.
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Incremental Model: Divides the project into smaller segments for incremental development and delivery.
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Iterative Model: Focuses on repeated cycles for refining and improving the system at each iteration.
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Prototype Model: Involves an initial prototype to gather user feedback and then refine requirements.
2.1 Traditional Life Cycle Models (Continued)
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Diagrams illustrate the Waterfall model's sequential phases (Requirement Analysis, System Design, Implementation, Testing, Deployment, Maintenance).
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A diagram also demonstrates the V-Model, showing verification and validation phases.
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Diagrams showcase the incremental model, outlining phases of requirement analysis, design & development, testing and implementation.
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Diagrams illustrate iterative model (Requirements, Analysis & Design, Implementation, Planning, Evaluation, Testing, Deployment).
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Diagrams visually describe the steps in the prototype model (Start, Requirement Gathering, Quick Design, Prototype Building, Engineer Product, Refine Prototype, Customer Evaluation and Stop).
2.2 Modern Life Cycle Models
- Modern Life Cycle Models emphasize flexibility, adaptability, and iterative progress catering to dynamic business requirements and evolving technologies.
- These are contrasted with traditional models, emphasizing continuous improvement, collaboration and faster delivery.
2.2 Modern Life Cycle Models (Continued)
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Rapid Application Development (RAD): A modern methodology emphasizing speed, flexibility, and iterative development, minimizing planning and maximizing user involvement to deliver a working product quickly.
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Agile Model: A flexible and iterative approach focusing on collaboration, customer feedback, and small, rapid releases.
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Scrum: A subset of Agile emphasizing short development cycles (sprints) and well-defined roles (Scrum Master, Product Owner).
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Kanban: A lean methodology emphasizing visual workflows and limiting work-in-progress to enhance efficiency.
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DevOps: Combines development and operations to enhance collaboration, automate processes and enabling continuous delivery and integration..
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Spiral Model: Combines iterative development with a risk-driven approach, repeatedly passing through planning, design, build, and testing phases.
2.3 Overview SDLC Stages
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The Traditional methodology used to develop, maintain, and replace information systems.
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This methodology consists of five phases: Planning and Selection, Analysis, Design, Implementation, and Maintenance.
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Phases aren’t necessarily sequential.
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Each phase has a specific outcome and deliverable.
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Individual companies often customize the life cycle process.
2.3 Overview SDLC Stages (Continued)
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Planning: The first phase of the SDLC where an organization identifies, analyzes, prioritizes, and arranges its information system needs.
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Analysis: Studying current procedures and information systems to determine requirements; generate alternative designs; compare alternatives and recommend best alternative options.
2.3 Overview SDLC Stages (Continued)
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Design: Describes the recommended solution in logical and physical system specifications (Logical design – functions independently of the platform; Physical design – technology specific details).
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Implementation: Coded, tested, installed and supported information system.
2.3 Overview SDLC Stages (Continued)
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Maintenance: Addresses the maintenance phase of the SDLC; programmers make changes to the system based on user requests, to reflect evolving business conditions ensuring the system remains functional and useful.
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Various deliverables and products associated with each SDLC phase are listed in a table.
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Description
This quiz covers the traditional models of the System Development Life Cycle (SDLC), including the Waterfall Model, V-Model, Incremental Model, and others. Students will learn to identify these models, explain their differences, and list the stages involved in the SDLC process.
