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B.tech (AI&DS)

17-07-2024

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• It is a linear structure which includes the faces requirements, design, implementation,testing and maintenance in waterfall model.

Arsha begum J

Varshini devi D K

WATERFALL MODEL:

Linear and sequential model.

INCREMENT MODEL:

Breakdown the project into smaller and manageable.

PROTOTYPE MODEL:

User friendly,recreate whole project from feedback.

• It breaks done the software development process into smaller and manageable portions which allows each team to focus on delivering specific features in each increment.

Dilip Shanmugam J

Akash A

Balaji B

Waterfall Model :

A classical model used in system development life cycle to create a system with a linear and sequential approach.

Increament Model :

An approach to software development that involves multiple iterations of smaller cycles, each producing a prototype of the software

Prototype Model:

A simplified, working version of a product or service that's built to test ideas and help developers understand how it works.

* The waterfall model is in a linear type structure and it is built by starting from requirements,analyse,design,coding, testing, implementation, maintainence.

* Once the model fail it cannot be reused or recycle it needs to be created as a new model.

Initial PlanningDefine overall project goals.

Increment 1

Analyze, design, implement, test, integrate, deploy, and maintain

Increment 2

Analyze, design, implement, test, integrate, deploy, and maintain

Final Increment

Finalize the project with all increments integrated

• It ensures that the final model is similar to user expectations and requirements through regular iterations of functions according to their feedback.

The spiral model combines elements of the waterfall model and iterative models.

The spiral model is a series of iterative cycle

The spiral model contains four process

PLAN,RISK, ENGINEERING and EVALUATION.

• It combines elements of both design and prototyping allowing for continuous refinement and validation in spiral model.

Spiral process:

It is a combination waterfall and iterative models and series of iterating cycles. It identify the migration of risks.

PUKAZHARASAN C

KARTHICK S

ABIBUR RAHMAN S

Waterfall: Linear, sequential; each phase completes before the next.

Incremental: Develop in small parts, integrate progressively.

Spiral: Iterative; combines prototyping, risk assessment, and refinement.

_° prototype is a cycling type of models.

_° if any feedback is defien by user it will be refining the prototype.

Arul priya S A

Vedhavarshini M

Kayalvizhi A

Waterfall model:

• Follows linear and sequencial approach.

• It gives clarity and predictability.

Incremental model:

• Breakdown the project into smaller.

Prototyping model:

• Gathering information from users.

• Creating a model design to attract the users.

It is a cyclic process in which a prototype can be built ,tested and updated based on feedback given by the user.The aim of this model is to attract user.

• The prototype model is a systems development method in which a prototype is built, tested and then reworked as necessary until an acceptable outcome is achieved from which the complete system or product can be developed.

Increment Process Model:

It splits the given process into two or more.

After it have been verified.

1. WATERFALL MODEL:

   It has linear structure. It is a one way process which includes requirements, analysis, design, implementation, verification, maintanence

Waterfall Model: A linear and sequential system development approach.

Incremental Model: A software development method involving multiple iterations to create prototypes.

Prototype Model:A simplified working version of a product to test and understand ideas.

Spiral model:

The spiral model combines waterfall and iterative models, emphasizing risk management through iterative cycles to ensure robust software solutions.

The Waterfall Model is a linear, sequential methodology where each phase must be completed before the next, emphasizing documentation and progress but lacking flexibility for changes.

Software process models are essential frameworks that guide the development of

software systems. They help teams plan, execute, and manage their projects

efficiently.

The incremental development is then carried out in phases once the modules have been divided, encompassing all analysis, design, implementation, necessary testing or verification, and maintenance.

The classical waterfall model is the basic software development life cycle model. It is very simple but idealistic. Earlier this model was very popular but nowadays it is not used. However, it is very important because all the other software development life cycle models are based on the classical waterfall model.

1. Requirement Gathering and Analysis: Initial requirements are gathered from the stakeholders. This step is crucial as it helps in understanding the basic requirements of the system.

2.Quick Design:

A preliminary design of the system is created. This is not a full-fledged design but includes only the important aspects that are necessary for the prototype.

3. Building the Prototype:

The quick design is used to create a prototype, which is a working model of the system with limited functionality. It gives the users a feel for the system.

4. User Evaluation:

The prototype is demonstrated to the users and stakeholders. Feedback is collected on what is right and what needs to be improved.

5. Refinement:

Based on the feedback, the prototype is refined and enhanced. This cycle of user evaluation and refinement is repeated until the prototype evolves into the final system.

6. Development of the Final System: Once the prototype is accepted by the users, it is used as a baseline to develop the final system. The prototype may be discarded or transformed into the final system, depending on the situation.

Concurrent modelling:

-Concurrency involves multiple tasks making progress simultaneously, potentially interleaved.

- Using multiple threads can make applications more responsive and efficient.

The Spiral Model in software engineering is a risk-driven process model that combines elements of both iterative and waterfall models. It's designed to manage risks in large and complex projects. Here's an overview:

Planning Phase:

Define objectives, alternatives, and constraints.

Identify and resolve risks.

Develop plans for the next iteration.

Risk Analysis Phase:

Evaluate alternatives.

Identify and analyze risks.

Develop risk mitigation strategies.

Engineering Phase:

Develop and verify the product at each iteration.

Involves activities like design, coding, and testing.

Evaluation Phase:

Assess the product and process.

Review the progress with stakeholders.

Decide whether to continue with the next iteration or terminate the project.

Adithya.A

Mouleeswaran.R

Harish.M

Waterfall Model:

1.It is a linear structure.

2.Have certain phases

3.Initial development

Increement model:

1.Divided into multiple parts

2.Same requirement

3.Grouped together finally

Prototyping Model:

1.Evolutionary Model

2.Continuous loop

3.Upgraded with user requirement

An evolutionary model involves breaking down the software development process into smaller, manageable increments or iterations. Each iteration involves the completion of a subset of the overall software requirements, allowing for continuous testing, feedback, and refinement.

Agile methodologies, such as Scrum and Kanban, are popular examples of evolutionary models. These models prioritize adaptability, collaboration, and frequent iterations. They promote close interaction between developers and stakeholders, enabling rapid responses to changing requirements.

Saran G (2303737724321033)

Gowtham AP (2303737724321013)

Kaviyarasu P (2303737724321022)

1. Waterfall Model: A linear and sequential approach where each phase must be completed before the next begins. Phases include requirements, design, implementation, testing, and maintenance. It's straightforward but inflexible to changes.

2. Increment Model: Development is divided into smaller, manageable increments or modules. Each increment is developed and delivered in stages, allowing partial implementation and ongoing refinement based on feedback.

3. Spiral Model: Combines iterative development with systematic aspects of the waterfall model. It involves repeating cycles (or spirals) of planning, risk analysis, engineering, testing, and evaluation, allowing for incremental development and refinement.

4. Prototype Model: Involves creating a prototype or an early version of the system to gather user feedback and refine requirements. The prototype is iteratively improved until it meets the user’s needs.