Waterfall model
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The waterfall model is a sequential design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance.
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The document describes the waterfall model of software development. It begins by listing the presenters and defining sequential and incremental software development models. It then discusses the waterfall model in more detail, describing it as a linear sequential process where each phase must be completed before the next begins. The document outlines the history, use cases, diagram, phases and advantages/disadvantages of the waterfall model.
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The document discusses the waterfall model of software development. It describes the five phases of the waterfall model as requirements gathering and analysis, design, coding, testing, and maintenance. It provides details on the activities in each phase, including documenting requirements, designing logical modules, writing code, testing software, and maintaining the system. The waterfall model is advantageous for small projects but inflexible if requirements change, as it is a sequential process where each phase must be completed before the next.
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Waterfall model ppt final
The document describes the waterfall model of software development. It begins by listing the presenters and defining sequential and incremental software development models. It then discusses the waterfall model in more detail, describing it as a linear sequential process where each phase must be completed before the next begins. The document outlines the history, use cases, diagram, phases and advantages/disadvantages of the waterfall model.
Waterfall model
The document discusses the waterfall model of software development. It describes the five phases of the waterfall model as requirements gathering and analysis, design, coding, testing, and maintenance. It provides details on the activities in each phase, including documenting requirements, designing logical modules, writing code, testing software, and maintaining the system. The waterfall model is advantageous for small projects but inflexible if requirements change, as it is a sequential process where each phase must be completed before the next.
Waterfall model
A waterfall model is a sequential design process, used in software development processes, in which progress is seen as flowing steadily downwards( like a waterfall) through the phrases of Conception, Initiation, Analysis, Design, Construction, Testing, Production/Implementation, and Maintenance.
The waterfall development model originates in the manufacturing and construction industries which are highly structured physical environments in which after-the-fact changes are prohibitively costly, if not impossible. Since no formal software development methodologies existed at the time, this hardware-oriented model was simply adapted for software development.
Waterfall model
The Waterfall model is a sequential development process where progress flows in one direction like a waterfall from conception to maintenance. It works best for projects with stable requirements over a short duration, as documentation and milestones are clearly defined at each stage from requirements to testing. However, the Waterfall model is not suitable for projects where requirements may change, as it is difficult to measure progress or make changes without restarting the entire process, and testing only occurs late.
Class waterfall
The Waterfall Model is a sequential software development process that consists of distinct phases: proposal definition, feasibility study, requirements analysis, system design, coding and testing, implementation, and system maintenance. It became popular in the 1970s as a structured approach to software development life cycles. Key strengths include its linear structure that is easy to understand and manage, while limitations are the inability to easily change requirements late in the process and lack of opportunity for customer feedback until full implementation. It works best when requirements are very stable and clearly defined.
Waterfallmodel
This document summarizes the waterfall model of software development. It describes the history and key phases of the waterfall model, including requirement gathering and analysis, design, coding, testing, and maintenance. The advantages are that it is easy to implement for small projects and phases must be completed sequentially. Disadvantages include inability to easily change requirements late in the process and lack of feedback between phases.
software project management Waterfall model
The waterfall model is a sequential model for software development where progress flows in one direction like a waterfall from conception to maintenance. It involves 8 phases: definition, design, implementation, testing, integration, deployment, maintenance and support. While it provides structure and is good for stable requirements, it is difficult to change requirements or go back to previous phases and does not allow for much iteration. The waterfall model works best for projects with clearly defined requirements and stable scope, but may not be suitable if requirements are likely to change.
Waterfall Model
The document describes the waterfall model of software development. It consists of 5 sequential phases: 1) Requirement gathering and analysis, 2) Design, 3) Coding, 4) Testing, and 5) Maintenance. Each phase must be completed before moving to the next. The waterfall model provides structure, clear milestones, and is good for management control, but it does not allow for flexibility or iteration between phases. It is best used for projects with stable requirements that can be clearly defined upfront.
SDLC Waterfall Model
The Waterfall model of the Software Development Life Cycle (SDLC) involves sequential phases of initiation, requirements, design, construction, testing, and implementation. Key project documents like the Business Requirements Document, Functional Requirements Document, and High Level Design are created, reviewed, and signed off on by stakeholders as the project progresses through each phase. Testing involves both system integration testing by the technology team and user acceptance testing by end users to identify and fix defects before final implementation.
Waterfall Model By Zubair YaSeeN
The document presents information on the waterfall model of software development. It discusses the history and definition of the waterfall model. The key phases of the waterfall model are requirements gathering and analysis, design, coding, testing, and maintenance. Each phase is completed sequentially before moving to the next. The waterfall model provides a structured approach but lacks flexibility if requirements change.
Waterfall model
The Waterfall Model is a sequential software development process where progress flows in one direction from one phase to the next. It has six distinct phases: requirements analysis, design, implementation, testing, installation, and maintenance. While it allows for clear progress tracking, it does not allow for reflection or revision and can be inaccurate in estimating costs. The Waterfall Model works best for stable projects where requirements are clearly defined upfront but is not well-suited for complex, integrated projects with a high proportion of reuse.
Code of ethics
This code of ethics outlines responsibilities to the public, clients, products, colleagues, and oneself. It addresses using good judgement, managing responsibilities, and upholding the integrity of the profession. The code is intended to guide ethical conduct.
Sdlc
The document discusses the waterfall model, which is an early software development life cycle approach where each phase must be completed before the next begins, with no overlapping phases. The phases include requirements, design, implementation, testing, and maintenance. The waterfall model works best for smaller, clearly-defined projects with stable requirements and is simple to understand and use. However, it does not allow for changing requirements and produces no working software until late in the cycle.
Waterfall model
The waterfall model is a sequential (non-iterative) design process, used in software development processes, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of conception, initiation, analysis, design, construction, testing, production/implementation and maintenance.
Waterfall
The waterfall model is a sequential software development model where progress flows in one direction like a waterfall from conception to maintenance. It involves 6 phases - definition/analysis, basic design, technical design, construction, testing, and integration/maintenance. The waterfall model is easy to use but inflexible to changes in requirements, which is a common occurrence. It assumes requirements will not change once the process begins.
Effort Distribution on Waterfall and Agile
Agile and Waterfall Model Pros and Cons.
Conceptual Difference over Waterfall and Agile.
Effort Distribution of Waterfall & Agile.
waterfall model
The document describes the waterfall model, a sequential software development process where progress flows in one direction from conception to maintenance. It involves requirements gathering, analysis, design, coding, testing, and release/maintenance phases, where each phase must be completed before the next begins. While it provides structure, the waterfall model works best for projects with stable requirements and is not suitable for dynamic or changing requirements.
Software Development Model - Waterfall, RAD & Agile
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Agile vs Iterative vs Waterfall models
Presentation (animated) on Agilve vs Iterative vs Waterfall models in SDLC.
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Software Development Model - Waterfall, RAD & Agile
Software Development Model - Waterfall, RAD & Agile
Similar to Waterfall model
Waterfallmodelppt final-140209060959-phpapp01
The document describes the waterfall model of software development. It begins by listing some common SDLC models: sequential, incremental, waterfall, V-model, spiral model, and RAD model. It then focuses on describing the waterfall model. Key points:
- The waterfall model is a linear sequential approach where each phase must be completed before the next begins.
- It provides structure for inexperienced teams but is only suitable for small, stable projects with well-defined requirements.
- The model has distinct phases for requirements gathering, design, implementation, testing, and deployment.
Waterfall Model PPT in Software Engineering
What is Waterfall Model? History of waterfall model, Advantages, Disadvantages and much more realted to waterfall model.
The waterfall model is the basic and simple software development life cycle model. But idealistic. Earlier the waterfall model was very popular but these days it is not used while software development. And the model was divided into phases and all the phases are organized in linear order. This model was first introduced by Dr. Winston in 1970.
This model is very popular and very important because all the models in software development life cycle models are based on it. So, we can call it, It is the base of all software development life cycle models or it is known as Classical Waterfall Model.
SDLC Model (Waterfall,Iterative Waterfall,Spiral)
Iterative model.
Spiral model
RAD(Rapid application development)
model.
Iterative model.
Spiral model
RAD(Rapid application development)
model.
A Water Fall Model is easy to flow.
It can be implemented for any size of project.
Every stage has to be done separately at the right time so you cannot jump stages.
Documentation is produced at every stage of a waterfall model allowing people to understand what has been done.
Testing is done at every stage.
This model was not the first model to discuss iterative development.
As originally envisioned, the iterations were typically 6 months to 2 years long.
Each phase starts with a design goal and ends with the client (who may be internal) reviewing the progress thus far.
Analysis and engineering efforts are applied at each phase of the project, with an eye toward the end goal of the project.
This model was not the first model to discuss iterative development.
As originally envisioned, the iterations were typically 6 months to 2 years long.
Each phase starts with a design goal and ends with the client (who may be internal) reviewing the progress thus far.
Analysis and engineering efforts are applied at each phase of the project, with an eye toward the end goal of the project.
This model was not the first model to discuss iterative development.
As originally envisioned, the iterations were typically 6 months to 2 years long.
Each phase starts with a design goal and ends with the client (who may be internal) reviewing the progress thus far.
Analysis and engineering efforts are applied at each phase of the project, with an eye toward the end goal of the project.
This approach carries less risk than a traditional Waterfall approach but is still far more risky and less efficient than a more Agile approaches.
In Iterative model, iterative process starts with a simple implementation of a small set of the software requirements and iteratively enhances the evolving versions until the complete system is implemented and ready to be deployed.
Iterative model.
Spiral model
RAD(Rapid application development)
model.
The first formal description of the waterfall model is often cited as a 1970 article by Winston W. Royce
Royce did not use the term "waterfall" in this article.
Royce presented this model as an example of a flawed, non-working model.
SDLC- concept and models
The document discusses the System Development Life Cycle (SDLC), which is a standard model used worldwide to develop software. It describes the main stages of the SDLC as analysis, planning, implementation, and testing. Analysis is the first and most important phase where requirements are determined and the problem is broken down. Planning involves assigning tasks to team members. Implementation is the longest and most expensive phase. Testing is an ongoing phase where thorough testing takes place. The document also discusses various SDLC models including waterfall, iterative enhancement, prototyping, spiral, build and fix, and rapid application development models.
Veeru sdlc ppt
This document discusses various software development life cycle (SDLC) models including waterfall, iterative waterfall, rapid prototype, evolutionary, spiral, fish, V-shape, RAD, and incremental models. For each model, it provides a brief description and highlights the advantages and disadvantages. The models differ in their structure, approach to requirements, testing, flexibility, and ability to handle risk and changing requirements.
waterfall model.pptx
The document presents a student presentation on the waterfall model of software development. It describes the waterfall model as having sequential phases from requirements analysis through deployment, with the output of each phase forming the input for the next. The phases are described as requirements analysis, system design, implementation, integration and testing, and deployment. Advantages of the waterfall model include its simplicity and structure, while disadvantages include inability to accommodate changing requirements or measure progress within phases.
What is waterfall
The Waterfall Model is a linear sequential software development process where each phase must be completed before the next can begin. It has six phases: requirements, analysis, design, coding, testing, and maintenance. The advantages are that it is simple, easy to manage each phase, and works well for small projects with fixed requirements. The disadvantages are that it is inflexible, does not allow for overlapping phases, and changes later in the process are costly. The Waterfall Model is best for projects with stable requirements, clear specifications, and available expertise throughout the process.
Waterfall Model (Software Engineering)
The Waterfall model is a sequential software development process introduced by Winston Royce in 1970. It consists of 5 phases: requirements analysis, design, implementation, testing, and maintenance. Each phase must be completed before the next begins and there is no overlapping or iteration between phases. The model is linear and waterfall-like, representing a strict sequence from abstract definition to concrete code.
PPT (1).pptx
The document discusses four common software development life cycle (SDLC) models: Waterfall, V-Model, Spiral Model, and Agile Model. It provides details on the phases and processes of the Waterfall and V-Model, and highlights some advantages and disadvantages of each. For the Spiral Model, it notes that the lifecycle is divided into iterative parts to manage risk and add new features incrementally. Finally, it states that the Agile Model uses iterative and incremental development with a focus on adaptability and rapid delivery.
Software life cycle models
The document discusses several common software life cycle models: the waterfall model, rapid application development (RAD) model, prototyping model, and spiral model. The waterfall model involves sequential phases from requirements to maintenance without overlap. The RAD model emphasizes rapid delivery through iterative prototyping. The prototyping model builds prototypes to refine requirements before full development. Finally, the spiral model takes a risk-driven approach to software development through iterative planning, risk analysis, and evaluations.
Software Development Life Cycle (SDLC)
The document discusses different software development life cycle (SDLC) models including the waterfall model, spiral model, and agile model. It provides an overview of each model's phases, advantages, and disadvantages. The waterfall model is the oldest and most widely used. It is linear but can lead to confusion if requirements are unclear. The spiral model is adapted for large, complicated projects and allows for changes and testing at each phase but requires an experienced team. The agile model prioritizes requirements, verification, design, and implementation through iterative development with customer involvement and fixed time periods.
Models of SDLC (Software Development Life Cycle / Program Development Life Cy...
Models of SDLC (Software Development Life Cycle / Program Development Life Cy...Amity University | FMS - DU | IMT | Stratford University | KKMI International Institute | AIMA | DTU
Software Lifecycle Models / Software Development Models
Types of Software development models
Waterfall Model
Features of Waterfall Model
Phase of Waterfall Model
Prototype Model
Advantages of Prototype Model
Disadvantages of Prototype model
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Rapid Application Development RAD Model
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Advantages of the RAD model
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When to use RAD model
Agile Model
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Disadvantages of Agile model
When to use Agile model
SDLC Models.pdf
1. This will help to understand the different types of SDLC models in Software Testing.
2. Advantages and Disadvantages of SDLC models.
3. Why these many models developed and what was the benefit over the existing ones?
Sdlc models
The document discusses several software development life cycle (SDLC) models, including waterfall, iterative, spiral, V-model, big bang, RAD, and agile. It provides details on the waterfall, iterative, spiral, and V-model approaches, including their applications, advantages, and disadvantages. The waterfall model is described as the classic sequential approach. The iterative model allows for incremental improvements through repeated cycles. The spiral model combines iterative and waterfall elements. The V-model associates testing with each development stage.
Types of software life cycle model
The document discusses different software development life cycle models including the waterfall model, iterative model, and prototyping model. It provides details on the waterfall model, describing it as a sequential process with distinct phases for requirements, design, implementation, verification, and maintenance. It notes some advantages like simplicity but also disadvantages like inability to go back a step. The document then covers the iterative model, describing it as breaking the project into modules that can be delivered incrementally with each release adding more functionality. The phases of the iterative model including planning, analysis and design, implementation, testing, and evaluation are outlined. Advantages of the iterative model like early software production and ability to change requirements more easily are highlighted.
Waterfall model in SDLC
The Waterfall model is a popular sequential model of the software development life cycle where each phase must be completed before the next begins. It consists of requirements, design, implementation, verification, and maintenance phases. Though simple to understand and manage, the Waterfall model works best for smaller, well-defined projects as it is inflexible to changes and produces no working software until late in the cycle.
Waterfall, Spiral and iterative model
The document provides an overview and comparison of three software engineering models: Waterfall, Spiral, and Iterative. The Waterfall model involves sequential phases from requirements to maintenance. The Spiral model is risk-driven and iterative, with prototypes evaluated at each cycle. The Iterative model breaks a project into smaller modules that are delivered incrementally with user feedback between cycles. Both Spiral and Iterative models allow for refinement and flexibility compared to the linear Waterfall approach.
software process model
This document discusses several software process models including the linear sequential model, incremental model, RAD model, evolutionary process model, prototyping model, spiral model, and concurrent development model. The linear sequential model or waterfall model involves requirement gathering, design, coding, testing, and maintenance phases. The incremental model combines elements of the waterfall model to produce increments of the software. The RAD model aims to develop a fully functional system within 60-90 days through short development cycles. Evolutionary process models allow for changes at any time, including prototyping, spiral, and concurrent development models. The spiral model uses iterative risk analysis and the concurrent model represents development activities and their associated states.
Waterfall-Model-in-SDLC-8861433.ppsx.pdf
The document discusses the waterfall model of the software development life cycle (SDLC). The waterfall model is a linear and sequential approach where each phase must be completed before the next begins, with phases including requirements, design, implementation, verification, and maintenance. It is simple to understand but inflexible and not suitable for complex or long-term projects where requirements may change.
diff type of models.pptx
The document discusses three software development models: the waterfall model, prototype model, and spiral model. The waterfall model is a linear sequential model where each phase must be completed before the next begins. The prototype model involves building initial prototypes to get user feedback before finalizing requirements. The spiral model is iterative with risk analysis, planning, development and evaluation cycles.
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We will focus in particular on tuning your engine at the application level, making the right adjustments to ensure that your system responds like a well-oiled, high-performance race car.
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Watch the meeting recording here - https://www.youtube.com/watch?v=UbNOje0kf6E
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Waterfall model
- 1. WaterfallMODEL Presented by.. Shiva Krishna Santhosh Chandra Varsha Nihanth Aparna Archana Anusha
- 2. SDLC Models • Sequential model • Incremental model
- 3. DIFFERENT MODELS IN SDLC 1.SEQUENTIAL MODELS: -Waterfall Model -V-Model 2.INCREMENTAL MODELS: -Incremental Model -Spiral Model -RAD Model
- 4. Waterfall Model Linear sequential model. Application is developed in a sequential approach. Each phase must be completed fully before the next phase begin Provides structure to inexperienced staff.
- 5. History The first formal description of the waterfall model is often cited as a 1970 article by Winston W.Royce. Presented this model as an example of a flawed, non-working model. Widely used for software projects ever since.
- 6. Where to use waterfall model Requirements are very well known Product definition is stable Technology is understood New version of an existing product.
- 7. How the process is
- 8. Requirements Gathering Business analyst will collect the requirements with an interaction of client
- 9. Requirement Analysis System analyst will study the client requirements and prepare the system requirement specification.
- 10. Design Design architecture is responsible to decide architecture of an application
- 11. Coding Developers will write the program using programming languages or scripting languages in order to develop the application
- 12. Testing Initially developers will perform unit testing and integration testing using of white box testing After that separate team will perform system testing using black box testing
- 13. Release &Maintenance Application is delivered to the customer While using this application if client identifies any defects in existing system then he sends the CR to CCB .
- 14. ADVANTAGES Easy to implement Helps to find errors earlier Easy to understand, easy to use. Works well when quality is more important than cost or schedule Documentation is produced at every stage Testing is done at every stage.
- 15. disadvantages Suitable for the small size projects. Constant testing of the design is needed. If requirements changes the Waterfall model may not work. Difficult to estimate time and cost Adjust scope during the life cycle can kill a project. High amount of risk and uncertainty. Not suitable to handle dynamic changes in the requirements
- 16. ANY QUERIES