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Questions and Answers
What is a key characteristic of the Waterfall Model?
What is a key characteristic of the Waterfall Model?
Which model emphasizes testing and verification at every stage?
Which model emphasizes testing and verification at every stage?
What distinguishes the Incremental Model from other traditional models?
What distinguishes the Incremental Model from other traditional models?
Which model is characterized by repeated cycles aiming to improve the system?
Which model is characterized by repeated cycles aiming to improve the system?
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In which model is an initial prototype created to gather user feedback?
In which model is an initial prototype created to gather user feedback?
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What do modern life cycle models primarily emphasize in software development?
What do modern life cycle models primarily emphasize in software development?
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Which of the following best describes Rapid Application Development (RAD)?
Which of the following best describes Rapid Application Development (RAD)?
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What is a key characteristic of the Agile Model?
What is a key characteristic of the Agile Model?
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How does Scrum differ from other Agile methodologies?
How does Scrum differ from other Agile methodologies?
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In what way does Kanban improve efficiency in the development process?
In what way does Kanban improve efficiency in the development process?
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What is the main focus of the DevOps approach?
What is the main focus of the DevOps approach?
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Which element is central to the Spiral Model?
Which element is central to the Spiral Model?
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What is a common aspect that traditional life cycle models lack compared to modern models?
What is a common aspect that traditional life cycle models lack compared to modern models?
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What is the first phase of the SDLC?
What is the first phase of the SDLC?
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Which of the following best describes the Analysis phase of the SDLC?
Which of the following best describes the Analysis phase of the SDLC?
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What does the Design phase of the SDLC focus on?
What does the Design phase of the SDLC focus on?
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What occurs during the Implementation phase of the SDLC?
What occurs during the Implementation phase of the SDLC?
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Which phase of the SDLC includes systematic repair and improvement of an information system?
Which phase of the SDLC includes systematic repair and improvement of an information system?
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In which SDLC phase are logical features of the system described?
In which SDLC phase are logical features of the system described?
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What is a key characteristic of the SDLC phases?
What is a key characteristic of the SDLC phases?
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What is regarded as the outcome of the Analysis phase?
What is regarded as the outcome of the Analysis phase?
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Study Notes
Chapter 2: System Development Life Cycle Models
- This chapter introduces models for system development
- The learning objectives are to identify traditional models, explain differences between models, and list SDLC stages.
2.1 Traditional Life Cycle Models
- Traditional Life Cycle Models refer to structured methods in software and system engineering.
- These models are linear, sequential, and have clearly defined stages.
2.1.1 Examples of Traditional Life Cycle Models
- Waterfall Model: A linear approach where each phase (requirements, design, implementation, testing, deployment, and maintenance) must be completed before moving to the next.
- V-Model (Validation and Verification): This model extends the Waterfall Model by incorporating verification and validation activities at each stage of the development process.
2.1.2 More Traditional Life Cycle Models
- Incremental Model: Divides a project into smaller, manageable segments for incremental development and delivery.
- Iterative Model: Revisits and refines processes through repeated cycles to improve the system at each iteration.
- Prototype Model: Develops an initial prototype to gather user feedback and refine requirements.
2.1.3 Visualization of the Waterfall Model
- The diagram displays the progressive stages of the model, including:
- Requirement Analysis
- System Design
- Implementation
- Testing
- Deployment
- Maintenance
2.1.4 Visualization of the V-Model
- A "V" shaped illustration demonstrates the verification and validation phases working opposite to the development phases.
2.1.5 Visualization of the Incremental Model
- The illustration visually presents the phases of an incremental development process.
2.1.6 Visualization of the Iterative Model
- The illustration displays the iterative cycle used in this development approach. It emphasizes the process of refining system aspects through repeated cycles.
2.1.7 Visualization of the Prototype Model
- The illustration shows a linear progression of steps involved in building, refining, and testing a prototype with the feedback of the customer included.
2.2 Modern Life Cycle Models
- Modern Life Cycle Models are contemporary approaches focusing on flexibility, adaptability, iterative progress, catering to dynamic business demands and evolving technologies.
- These models emphasize continuous improvement, collaboration, and faster delivery.
2.2.1 Examples of Modern Life Cycle Models
- Rapid Application Development (RAD): This methodology focuses on speed, flexibility, and iterative development to deliver a working product quickly, minimizing planning and maximizing user involvement.
- Agile Model: This approach prioritizes flexibility, collaboration, customer feedback, and the delivery of small, incremental releases.
- Scrum: A subset of Agile, focusing on short development cycles (sprints) and defined roles (Scrum Master and Product Owner).
- Kanban: A lean methodology that visualizes workflows and limits work-in-progress to improve efficiency.
- DevOps: Combines development and operations teams to enhance collaboration, automate processes, and enable continuous delivery and integration.
- Spiral Model: This model combines iterative development with a risk-driven approach, repeatedly passing through planning, design, build, and testing phases.
2.3 Overview of SDLC Stages
- Traditional methodology for developing, maintaining, and replacing information systems.
- The methodology consists of five phases:
- Planning and Selection
- Analysis
- Design
- Implementation
- Maintenance
- Phases are not always sequential.
- Each phase includes a specific deliverable or outcome.
- Companies often customize their life cycle based on their needs.
2.3.1 SDLC Stages - Planning
- This is the initial stage where information system needs are identified, analyzed, prioritized and arranged.
2.3.2 SDLC Stages - Analysis
- Involves studying current procedures and information systems
- Determining requirements
- Generating alternative designs
- Comparing alternatives
- Recommending the best alternative
2.3.3 SDLC Stages - Design
- Describes the recommended solution (logical and physical specifications)
- Defines the functionalities in a system design independent of the platform.
- Converts logical specifications into technology-specific details for programming and system construction.
2.3.4 SDLC Stages - Implementation
- The information system is coded, tested, installed, and maintained within the organization.
2.3.5 SDLC Stages - Maintenance
- The system is repaired and improved to reflect evolving business conditions.
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Description
This quiz covers Chapter 2 on System Development Life Cycle (SDLC) Models. It focuses on traditional models, their differences, and the various stages involved in the SDLC. You'll learn about the Waterfall and V-Model, as well as the Incremental Model.
