Incremental Model in Software Engineering

Podcast Beta

Play an AI-generated podcast conversation about this lesson

Questions and Answers

What is the main benefit of the RAD model that allows it to reduce testing time?

Focusing on the reuse of templates, tools, processes, and code

Testing prototypes individually during every iteration (correct)

Dividing larger projects into smaller ones

Transforming data objects into information flow

What is the primary goal of the Business Modeling phase in the RAD model?

To transform data objects into information flow

To generate applications using automated tools

To design the product based on information flow (correct)

To refine data objects for business significance

What happens to the data objects in the Process Modeling phase?

They are used to generate applications

They are refined for business significance

They are discarded

They are transformed into information flow (correct)

What is the focus of the RAD model?

Focusing on the reuse of templates, tools, processes, and code Signup and view all the answers

What is the purpose of the Data Modeling phase in the RAD model?

To refine data objects for business significance Signup and view all the answers

What is the role of automated tools in the RAD model?

To construct software and convert process and data models into prototypes Signup and view all the answers

What is the first phase of the requirement lifecycle?

Requirement Definition Signup and view all the answers

What is the purpose of the Impact Assessment procedure?

To analyze and prepare facts and figures for a business analyst Signup and view all the answers

What is the importance of requirement validation?

It is very important for project success Signup and view all the answers

What is included in the requirement validation phase?

Checking the specification, wireframe, High Fidelity Simulation, and Traceability Analysis Signup and view all the answers

What is the purpose of requirement documentation?

To provide a formal written document outlining the technical and logical requirements Signup and view all the answers

Who is the intended audience of a requirements document?

Anyone involved in the project who needs a deep technical understanding Signup and view all the answers

What happens to the requirements after they are gathered?

They are organized in folders logically as per product release or sprint Signup and view all the answers

What methodology can influence the requirement lifecycle?

The methodology chosen for software development, such as Agile, Waterfall, or Incremental Signup and view all the answers

When is the incremental model more suitable?

When software engineering team are not very well skilled or trained Signup and view all the answers

What is a major advantage of the incremental model?

It is less expensive to change requirements Signup and view all the answers

What is a disadvantage of the incremental model?

Rectifying a problem in one unit requires correction in all the units Signup and view all the answers

What is the spiral model a combination of?

Waterfall model and iterative model Signup and view all the answers

What is the main purpose of the spiral model?

To allow for client review and progress tracking Signup and view all the answers

Who first mentioned the spiral model?

Barry Boehm Signup and view all the answers

What is a characteristic of the spiral model?

Each phase starts with a small set of requirements Signup and view all the answers

What is the final stage of the spiral model?

The production phase Signup and view all the answers

What is the primary objective of the requirement gathering stage in SDLC?

To gather as much information as possible about the desired software Signup and view all the answers

What is the main focus of the requirement management process?

To monitor and manage the software requirements Signup and view all the answers

What is the primary purpose of the design stage in SDLC?

To design the high-level functions and architecture Signup and view all the answers

What is the primary objective of the test stage in SDLC?

To test the software to verify that it is built as per the specifications Signup and view all the answers

What is STLC?

Software Testing Life Cycle Signup and view all the answers

What is the main purpose of a requirement document?

To document the project stakeholders' requirements and scope statement Signup and view all the answers

What is the primary benefit of using requirement management tools?

To manage the software requirements with minimum hurdles Signup and view all the answers

What is the sequence of activities carried out by developers to design and develop high-quality software?

Software Development Life Cycle Signup and view all the answers

What is the primary characteristic of the incremental model in software development?

Dividing the project into multiple standalone modules Signup and view all the answers

What happens to the system after the first increment is delivered?

The system is put into production Signup and view all the answers

What is the priority in tackling requirements in the incremental model?

Highest priority requirement is tackled first Signup and view all the answers

How is system development organized in the incremental model?

Into many mini development projects Signup and view all the answers

What is the result of each iteration in the incremental model?

A partial system with added functionality Signup and view all the answers

When is the core product analyzed by the client in the incremental model?

After the first increment is delivered Signup and view all the answers

Study Notes

SDLC Methodologies

Incremental Model is used when demand for an early release of a product arises, when the software engineering team is not very well skilled or trained, and when high-risk features and goals are involved.
It is commonly used for web application and product-based companies.
The advantages of the Incremental Model include:
- Quick generation of software during the software life cycle.
- Flexibility and low cost to change requirements and scope.
- Easy identification of errors.
- Less costly compared to others.
- Customer can respond to each building.
The disadvantages of the Incremental Model include:
- Requires good planning and designing.
- Problems may arise due to system architecture.
- Each iteration phase is rigid and does not overlap each other.
- Rectifying a problem in one unit requires correction in all the units and consumes a lot of time.

Spiral Model

The Spiral Model is a combination of the waterfall model and iterative model.
Each phase in the Spiral Model begins with a design goal and ends with the client reviewing the progress.
The Spiral Model was first mentioned by Barry Boehm in his 1986 paper.
The development team in the Spiral-SDLC model starts with a small set of requirements and goes through each development phase for those set of requirements.
The software engineering team adds functionality for the additional requirement in every-increasing spirals until the application is ready for the production phase.

Requirement Life Cycle

Requirement Life Cycle involves several phases and can be a complicated process.
The nature of the process depends on the methodology chosen for software development.
Each phase may involve a lot of paperwork and approval procedures.
It deals with project documents like a project proposal, project management plan, project scope, and the business case.

Phases of Requirement Life Cycle

Phase 1: Requirement Definition (Requirement extraction)
Phase 2: Requirement Validation (Analyzing the needs or conditions required to meet a new or altered product)
Phase 3: Requirement Documentation (Formal written documents that outline the technical and logical requirements of a project)
Phase 4: Requirement Management (Planning, monitoring, analyzing, communicating, and managing requirements)

Software Development Life Cycle (SDLC)

SDLC is the sequence of activities carried out by developers to design and develop high-quality software.
Different phases of SDLC include:
- Requirement Gathering
- Design Stage
- Build Stage
- Test Stage

Rapid Application Development (RAD) Model

RAD model focuses on the reuse of templates, tools, processes, and code.
Different phases of RAD model include:
- Business Modeling
- Data Modeling
- Process Modeling
- Application Generation
- Testing and Turnover
RAD model is used when there is a need to develop software quickly and with a high degree of quality.

Studying That Suits You

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

Description

This quiz covers the scenarios where the incremental model is used, its advantages, and disadvantages in software engineering.