System Analysis & Design Chapter 2
42 Questions
0 Views

Choose a study mode

Play Quiz
Study Flashcards
Spaced Repetition

Podcast

Play an AI-generated podcast conversation about this lesson

Questions and Answers

Agile development emphasizes individuals and interactions over processes and tools.

True

The KISS principle stands for 'Keep It Simple, Stupid' in Extreme Programming.

True

In agile development, responding to change is less important than following a plan.

False

Extreme Programming (XP) focuses solely on comprehensive documentation before coding begins.

<p>False</p> Signup and view all the answers

In agile development, customer collaboration is preferred over contract negotiation.

<p>True</p> Signup and view all the answers

Prototyping methodologies quickly provide a working system that is ready for widespread organizational use.

<p>False</p> Signup and view all the answers

Throwaway prototypes have a relatively thorough design phase focused on gathering information and developing system concepts.

<p>False</p> Signup and view all the answers

Users can interact with the prototype to better understand its capabilities and limitations.

<p>True</p> Signup and view all the answers

A design prototype is a fully functional system used for user feedback.

<p>False</p> Signup and view all the answers

Prototyping can lead to significant changes that might render initial design decisions ineffective.

<p>True</p> Signup and view all the answers

A key challenge of prototyping is that it complicates careful, methodical analysis.

<p>True</p> Signup and view all the answers

Users who provide suggestions for features during prototyping fully understand the technical challenges involved.

<p>False</p> Signup and view all the answers

Implementation follows the system prototype stage in the system development life cycle.

<p>True</p> Signup and view all the answers

Throwaway prototyping methodologies evolve prototypes into the final system.

<p>False</p> Signup and view all the answers

Agile development is a flexible approach that allows for changing requirements during software development.

<p>True</p> Signup and view all the answers

During the analysis and design phases, design prototypes are utilized to minimize risks associated with the system.

<p>True</p> Signup and view all the answers

The implementation stage of throwaway prototyping occurs before the design prototype is created.

<p>False</p> Signup and view all the answers

Structured Design is one of the methodologies under Systems Development Methodologies (SDM).

<p>True</p> Signup and view all the answers

Prototyping-based methodologies typically yield systems that are less stable and reliable than throwaway prototyping methodologies.

<p>True</p> Signup and view all the answers

The final system delivered using throwaway prototyping methodologies is usually available sooner than in prototyping-based methodologies.

<p>False</p> Signup and view all the answers

HTML mockup screens created by the analyst team are functional systems.

<p>False</p> Signup and view all the answers

XP relies on continuous testing and simple coding performed by individual developers.

<p>False</p> Signup and view all the answers

User stories are an essential starting point for XP projects.

<p>True</p> Signup and view all the answers

Refactoring in XP is a method that allows for complex restructuring of code.

<p>False</p> Signup and view all the answers

XP projects can get bogged down in extensive requirements gathering, similar to RAD approaches.

<p>False</p> Signup and view all the answers

Code is tested daily in XP, and problematic code can be backed out until fixed.

<p>True</p> Signup and view all the answers

In XP, having a detailed analysis and design documentation is crucial for project success.

<p>False</p> Signup and view all the answers

For large projects, XP is guaranteed to maintain project success, even with less experienced teams.

<p>False</p> Signup and view all the answers

Stand-up meetings in XP serve as an opportunity for immediate feedback and interaction among team members.

<p>True</p> Signup and view all the answers

Phased development methodologies allow project teams to focus more on detailed analysis of the problem domain.

<p>False</p> Signup and view all the answers

Reliability is a critical factor in system development, especially for applications like medical equipment.

<p>True</p> Signup and view all the answers

RAD-based methodologies are best suited for projects with long time schedules.

<p>False</p> Signup and view all the answers

Waterfall-based methodologies allow for easy schedule changes when time is a premium.

<p>False</p> Signup and view all the answers

RAD methodologies move critical design decisions to the end of the project to allow for better schedule visibility.

<p>False</p> Signup and view all the answers

Selecting a methodology for development is straightforward because one methodology is always the best choice.

<p>False</p> Signup and view all the answers

When user requirements are unclear, prototyping-based methodologies are generally less useful.

<p>False</p> Signup and view all the answers

Throwaway prototyping-based methodologies are particularly useful when developers are familiar with the technology being used.

<p>False</p> Signup and view all the answers

Phased development-based methodologies help investigate new technology in depth before final design.

<p>True</p> Signup and view all the answers

Complex systems require careful analysis that can be accommodated by traditional structured design-based methodologies.

<p>True</p> Signup and view all the answers

Due to their nature, prototyping-based methodologies are always suitable for handling system complexity.

<p>False</p> Signup and view all the answers

Interaction with technology helps users better understand their system requirements.

<p>True</p> Signup and view all the answers

Familiarity with technology decreases the risks associated with a new development project.

<p>True</p> Signup and view all the answers

Study Notes

System Analysis & Design

  • This presentation covers system analysis and design, specifically focusing on different methodologies.

Chapter 2 Agenda Part 3

  • The agenda outlines topics: Systems Development Methodologies, RAD, Agile Development, and Selecting the Appropriate Development Methodology.

Systems Development Methodologies

  • System Development Methodologies (SDM) are categorized:
    • Structured Design
    • Rapid Application Development (RAD)
    • Agile Development

Rapid Application Development (RAD)

  • A newer class of systems development methodologies that emerged in the 1990s.
  • Attempts to address weaknesses of structured design methodologies by adjusting the Software Development Life Cycle (SDLC) phases to deliver some parts of the system quickly to users.
  • Users can better understand the system and suggest revisions to bring the system closer to meeting needs.
  • Most RAD-based methodologies recommend using special techniques and computer tools to speed up analysis, design, and implementation phases (e.g., CASE tools, JAD sessions, fourth-generation programming languages like Perl, Python, Ruby, SQL, and code generators).

Phased Development

  • A methodology that breaks an overall system into a series of versions, developed sequentially.
  • Analysis phase: Identifies overall system concept and categorizes requirements into versions.
  • Fundamental requirements bundled in the first version.
  • The analysis phase leads to design and implementation, focusing on the requirements for version 1.
  • After implementing version 1, work starts on version 2, analyzing and incorporating user feedback from the previous version.
  • This process continues until the system is complete or no longer in use.
  • Pros: Quickly provides a useful system to users
  • Cons: Systems are intentionally incomplete initially

Prototyping

  • A methodology where analysis, design, and implementation phases are performed concurrently and repeatedly until the system is complete.
  • A "quick-and-dirty" prototype is built initially, providing a minimal number of features.
  • Users provide feedback on the prototype which leads to reanalysis, redesign and reimplementation of subsequent prototypes with additional features.
  • This process continues until a sufficient level of functionality is achieved.
  • Pros: Quickly provides a system for users to interact with, helps to refine requirements, and reduces delays.
  • Cons: Challenges in conducting careful, methodical analysis, leading to poor design decisions. Issues and problems may not be recognized until deep into the development process.

Throwaway Prototyping

  • Prototypes are designed and built for a specific purpose early in the SDLC; they are not meant to become part of the final system.
  • Their purpose is to clarify requirements, analyze potential technical issues, and identify the specific design steps needed to overcome those issues.
  • Once the requirements are understood and technical issues are resolved, the design prototypes are discarded, and the team moves to the creation of the final system.

Agile Development

  • An iterative and flexible approach to software development that emphasizes collaboration, adaptability, and continuous improvement.
  • Gained popularity due to its ability to accommodate changing requirements and efficiently deliver high-quality software.
  • Key principles of agile development include customer collaboration over contract negotiation, working software over comprehensive documentation, responding to change over following a plan.
  • Typically uses iterative sprints or iterations to deliver working pieces of software.
  • Includes continuous feedback and adaptation at the end of each iteration, incorporating feedback into subsequent iterations.

Extreme Programming (XP)

  • Founded on four core values: communication, simplicity, feedback, and courage.
  • Developers provide rapid feedback to end users on a continuous basis.
  • Follows a strict "KISS" principle (Keep It Simple, Stupid).
  • Developments occur in small incremental changes, accepting and embracing change frequently.
  • Emphasis on quality and continuous testing, ensuring code is completely bug-free each day.
  • Uses refactoring, a disciplined way to restructure code to maintain its simplicity

Selecting The Appropriate Development Methodology

  • Choosing a methodology is challenging due to many available options.
  • Factors impacting the selection of a specific methodology:
    • Clarity of user requirements
    • Familiarity with technology
    • System complexity
    • System reliability
    • Short time schedules
    • Schedule visibility
  • The choice depends on the specific project needs.

Studying That Suits You

Use AI to generate personalized quizzes and flashcards to suit your learning preferences.

Quiz Team

Related Documents

Description

Explore the essential concepts of System Analysis and Design covered in Chapter 2. This quiz focuses on various systems development methodologies including RAD and Agile Development. Understand how these methodologies adapt to improve the Software Development Life Cycle.

More Like This

Use Quizgecko on...
Browser
Browser