SDLC Models: Waterfall, V-Shaped, Prototyping, and Incremental, Exams of Nursing

A comprehensive overview of various software development life cycle (sdlc) models, including waterfall, v-shaped, evolutionary prototyping, and incremental models. it details the strengths, weaknesses, and ideal application scenarios for each model, making it a valuable resource for students and professionals in software engineering. The document offers a clear comparison of different approaches to software development, highlighting key differences and helping readers choose the most suitable model for specific projects. each model is explained with examples and practical considerations.

Typology: Exams

2024/2025

Available from 04/23/2025

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Software Development Life Cycle
Models fully solved 2023
SDLC Model - correct answer A framework that describes the activities performed at each stage of a
software development project
Waterfall model - correct answer Requirements, design, implementation
Requirements - correct answer defines
needed information, function,
behavior, performance and
interfaces.
Design - correct answer data structures,
software architecture,
interface representations,
algorithmic details
Implementation - correct answer source
code, database, user
documentation, testing
Waterfall strengths - correct answer -Easy to understand,
-Provides structure to inexperienced staff
-Milestones are well understood
- Sets requirements stability
- Good for management control
-quality is more
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Software Development Life Cycle

Models fully solved 2023

SDLC Model - correct answer A framework that describes the activities performed at each stage of a software development project Waterfall model - correct answer Requirements, design, implementation Requirements - correct answer defines needed information, function, behavior, performance and interfaces. Design - correct answer data structures, software architecture, interface representations, algorithmic details Implementation - correct answer source code, database, user documentation, testing Waterfall strengths - correct answer -Easy to understand, -Provides structure to inexperienced staff -Milestones are well understood

  • Sets requirements stability
  • Good for management control -quality is more

important Waterfall Deficiencies - correct answer -requirements must be known upfront -inhibits flexibility -false impression of progress -does not reflect problem-solving nature -integration at end -little opportunity for customer to preview system When to use Waterfall model - correct answer -Requirements are very well known

  • Product definition is stable
  • Technology is understood
  • New version of an existing product
  • Porting an existing product to a new platform. V-shaped SDLC Model - correct answer variant of waterfall that emphasizes verification and validation -Testing of product is planned in parallel V-shaped Weaknesses - correct answer Does not -handle concurrent events -dynamic changes in requirements -risk analysis when to use V-shaped model - correct answer -systems requiring high reliability -all requirements are known up-front solution and tech are known Structured Evolutionary prototyping model - correct answer -developers build a prototype

Incremental SDLC Model - correct answer -construct a partial implementation of total system -slowly add functionality -prioritizes requirements of the system and then implements them in groups

  • each release of the system adds function to the previous release, until all designed functionality has been implemented Incremental model strengths - correct answer -develop major functions first -each release delivers an operational product
  • customer respons to each build
  • uses "divide and conquer" for tasks -initial delivery cost -product delivery is faster -customers get important functionality early -risk of changing requirements is reduced Incremental model weaknesses - correct answer -needs good planning and design -requires early definition of a complete and fully functional system to allow for the definition of increments -well- defined module interfaces are required -cost of complete system is not lower When to use the Incremental model - correct answer - need for early realization of benefits -most requirements are known up-front but are expected to evolve over time
  • need to get basic functionality to the market early
  • projects have lengthy development schedules
  • new technology