Waterfall Model in SDLC system development life Cycle this model is used to developed software according to the requirement of the Users.... in any business this model is using commonly
The document discusses the spiral model of software development. The spiral model is an iterative approach that combines prototyping and aspects of the waterfall model. It was defined by Barry Boehm in 1988 as a way to address risks through iterative evaluation and improvement of prototypes. The spiral model is best for medium to high risk projects where requirements are complex or expected to change. It involves evaluating prototypes, defining new prototypes based on learnings, and repeating this process until the final product is delivered.
This document summarizes key topics from Chapter 4 of Ian Sommerville's Software Engineering textbook, including software process models, generic process models like waterfall, evolutionary development and component-based development, process activities like requirements engineering, design, implementation, validation and evolution. It also describes the Rational Unified Process model and the role of computer-aided software engineering tools in supporting software processes.
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.
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.
The iterative model breaks a project into small modules that can be delivered incrementally. A working version is produced in the first module, with each subsequent release adding additional functionality until the full system is complete. It allows for quick releases during development and makes it easier to develop and test in smaller iterations while incorporating customer feedback at each stage. However, it requires more resources than traditional models and skilled management to avoid increased costs over time.
The document discusses the main phases and models of the software development life cycle (SDLC). It describes common SDLC models like waterfall, spiral, and agile. The waterfall model involves sequential phases from requirements to maintenance. The spiral model is iterative with risk assessment. Agile emphasizes iterative development, collaboration, and responding to change. Testing methodologies like black box and white box testing are also summarized along with levels of testing from unit to system.
The document discusses various software life cycle models, including waterfall, V-model, incremental, prototype, spiral, RAD and 4GT. It provides descriptions of each model's phases, advantages and disadvantages. The waterfall and V-model are presented as classic sequential models. Incremental and spiral models iterate through phases to allow for flexibility. Prototype and RAD models emphasize early prototypes. Risk analysis is a key part of the spiral model.
The document discusses the spiral model of software development. The spiral model is an iterative approach that combines prototyping and aspects of the waterfall model. It was defined by Barry Boehm in 1988 as a way to address risks through iterative evaluation and improvement of prototypes. The spiral model is best for medium to high risk projects where requirements are complex or expected to change. It involves evaluating prototypes, defining new prototypes based on learnings, and repeating this process until the final product is delivered.
This document summarizes key topics from Chapter 4 of Ian Sommerville's Software Engineering textbook, including software process models, generic process models like waterfall, evolutionary development and component-based development, process activities like requirements engineering, design, implementation, validation and evolution. It also describes the Rational Unified Process model and the role of computer-aided software engineering tools in supporting software processes.
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.
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.
The iterative model breaks a project into small modules that can be delivered incrementally. A working version is produced in the first module, with each subsequent release adding additional functionality until the full system is complete. It allows for quick releases during development and makes it easier to develop and test in smaller iterations while incorporating customer feedback at each stage. However, it requires more resources than traditional models and skilled management to avoid increased costs over time.
The document discusses the main phases and models of the software development life cycle (SDLC). It describes common SDLC models like waterfall, spiral, and agile. The waterfall model involves sequential phases from requirements to maintenance. The spiral model is iterative with risk assessment. Agile emphasizes iterative development, collaboration, and responding to change. Testing methodologies like black box and white box testing are also summarized along with levels of testing from unit to system.
The document discusses various software life cycle models, including waterfall, V-model, incremental, prototype, spiral, RAD and 4GT. It provides descriptions of each model's phases, advantages and disadvantages. The waterfall and V-model are presented as classic sequential models. Incremental and spiral models iterate through phases to allow for flexibility. Prototype and RAD models emphasize early prototypes. Risk analysis is a key part of the spiral model.
The document defines the software development life cycle (SDLC) and its phases. It discusses several SDLC models including waterfall, prototype, iterative enhancement, and spiral. The waterfall model follows sequential phases from requirements to maintenance with no overlap. The prototype model involves building prototypes for user feedback. The iterative enhancement model develops software incrementally. The spiral model is divided into risk analysis, engineering, construction, and evaluation cycles. The document also covers software requirements, elicitation through interviews and use cases, analysis through data, behavioral and functional modeling, and documentation in a software requirements specification.
Waterfall Model PPT in Software EngineeringRaju Sheoran
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.
The document discusses various aspects of the software process including software process models, generic process models like waterfall model and evolutionary development, process iteration, and system requirements specification. It provides details on each topic with definitions, characteristics, advantages and diagrams. The key steps in software process are specified as software specifications, design and implementation, validation, and evolution. Generic process models and specific models like waterfall, evolutionary development, and incremental delivery are explained.
This document discusses different process models used in software development. It describes the key phases and characteristics of several common process models including waterfall, prototyping, V-model, incremental, iterative, spiral and agile development models. The waterfall model involves sequential phases from requirements to maintenance without iteration. Prototyping allows for user feedback earlier. The V-model adds verification and validation phases. Incremental and iterative models divide the work into smaller chunks to allow for iteration and user feedback throughout development.
The document provides an introduction to software engineering and discusses key concepts such as:
1) Software is defined as a set of instructions that provide desired features, functions, and performance when executed and includes programs, data, and documentation.
2) Software engineering applies scientific knowledge and engineering principles to the development of reliable and efficient software within time and budget constraints.
3) The software development life cycle (SDLC) involves analysis, design, implementation, and documentation phases to systematically develop high quality software that meets requirements.
The document outlines topics related to quality control engineering and software testing. It discusses key concepts like the software development lifecycle (SDLC), common SDLC models, software quality control, verification and validation, software bugs, and qualifications for testers. It also covers the quality control lifecycle, test planning, requirements verification techniques, and test design techniques like equivalence partitioning and boundary value analysis.
Evolutionary process models allow developers to iteratively create increasingly complete versions of software. Examples include the prototyping paradigm, spiral model, and concurrent development model. The prototyping paradigm uses prototypes to elicit requirements from customers. The spiral model couples iterative prototyping with controlled development, dividing the project into framework activities. The concurrent development model concurrently develops components with defined interfaces to enable integration. These evolutionary models allow flexibility and accommodate changes but require strong communication and updated requirements.
Prescriptive process models attempt to organize the software development life cycle by defining activities, their order, and relationships. Early models like code-and-fix lacked predictability and manageability. Newer models strive for structure and order to achieve coordination, while allowing for changes as feedback is received. However, relying solely on prescriptive models may be inappropriate in a world that demands flexibility and change.
The document discusses the software design process. It begins by explaining that software design is an iterative process that translates requirements into a blueprint for constructing the software. It then describes the main steps and outputs of the design process, which include transforming specifications into design models, reviewing designs for quality, and producing a design document. The document also covers key concepts in software design like abstraction, architecture, patterns, modularity, and information hiding.
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.
Learn how and what is Spiral Model. This was made during 3RD Year. From Eastern Visayas State University - Main Campus, Tacloban City, Leyte, Philippines
CREATED BY:
Aguilar, Fatima Joy
Arpon, Benedict Julius Steven
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.
The document discusses the Software Development Life Cycle (SDLC), including its objectives, common phases and models. The key models described are waterfall, prototyping, spiral, RAD and agile. Waterfall is the classical sequential model but is inflexible. Prototyping and spiral address changing requirements through iterative cycles. RAD focuses on rapid development through reuse, workshops and early user testing. Agile methods emphasize speed, reduced formal processes and adaptability. The conclusion recommends RAD for mashup projects due to its support for iterative requirements changes and modular development.
1. Software development life cycle models break down the development process into distinct phases to manage complexity. Common models include waterfall, incremental, evolutionary (like prototyping and spiral), and component-based.
2. The waterfall model follows linear sequential phases from requirements to maintenance. Incremental models iterate through phases. Evolutionary models use prototypes to evolve requirements through customer feedback.
3. The spiral model is an evolutionary model representing phases as loops in a spiral, with risk assessment and reduction at each phase. It aims to minimize risk through iterative development and prototyping.
The V-Model is a software development lifecycle model that structures testing activities in parallel to steps in the design process. It extends the waterfall model by performing testing at each development stage in both forward and reverse direction. This allows bugs to be found early and defects to be tracked proactively. The V-Model follows a strict process to develop quality software and constantly measures productivity through test case creation and coverage. However, it requires significant resources and money, and changes midway require updating documentation.
The document discusses the incremental software development model. It defines the incremental model as one where the whole software requirement is divided into multiple builds. Each build or module independently goes through the requirements, design, implementation, and testing phases. Subsequent builds then add new functionality to the system until the full product is completed. The incremental model is best for projects where major requirements are known but some details may evolve over time, and there is a need to release portions of the software early to the market. Advantages include developing working software quickly, flexibility to change scope, and lower initial costs. Disadvantages include needing good upfront planning and design work as well as potentially higher total costs than traditional models.
The document discusses various software development life cycle (SDLC) models. It describes the phases of SDLC as requirements gathering and analysis, design, development, testing, implementation, and maintenance. Several common models are explained in detail, including the waterfall model, prototyping model, incremental model, and spiral model. The waterfall model follows a sequential process from requirements to maintenance, while other iterative models allow for more customer feedback and flexibility to change requirements over multiple iterations of development. Choosing the appropriate model depends on factors like project risks, requirements stability, and need for early delivery of basic functionality.
The document discusses the phases of the Software Testing Life Cycle (STLC). It begins by introducing the group members and defining software testing as a process to find bugs by executing a program. It then outlines the six main phases of the STLC: 1) Requirements analysis to understand requirements and identify test cases, 2) Test planning to create test plans and strategies, 3) Test case development to write test cases and scripts, 4) Environment setup to prepare the test environment, 5) Test execution and bug reporting to run tests and log defects, and 6) Test cycle closure to review testing artifacts and lessons learned. Each phase is described in 1-2 sentences with its activities, deliverables, and examples provided.
This document discusses various topics related to event management and software development. It covers the software development life cycle (SDLC) including both traditional and agile models. It discusses requirements, databases, modeling languages, internet of things, Java features, Android development, HTTP, and .NET. The key topics covered are SDLC methodologies (waterfall, agile), database concepts (OLTP, OLAP, queries), modeling tools (UML, StarUML, Umlet), sensors and devices for IoT projects, programming languages (Java, features; Android architecture), web protocols (HTTP, client-server), and development platforms (.NET languages, libraries).
The document discusses different software process models used in software development. It describes the waterfall model as a linear sequential process moving from requirements to design to development and so on. The iterative model develops software incrementally in iterations to add more features. The V model maps each development phase to a testing phase. Other models discussed include RAD, spiral and agile models.
The document defines the software development life cycle (SDLC) and its phases. It discusses several SDLC models including waterfall, prototype, iterative enhancement, and spiral. The waterfall model follows sequential phases from requirements to maintenance with no overlap. The prototype model involves building prototypes for user feedback. The iterative enhancement model develops software incrementally. The spiral model is divided into risk analysis, engineering, construction, and evaluation cycles. The document also covers software requirements, elicitation through interviews and use cases, analysis through data, behavioral and functional modeling, and documentation in a software requirements specification.
Waterfall Model PPT in Software EngineeringRaju Sheoran
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.
The document discusses various aspects of the software process including software process models, generic process models like waterfall model and evolutionary development, process iteration, and system requirements specification. It provides details on each topic with definitions, characteristics, advantages and diagrams. The key steps in software process are specified as software specifications, design and implementation, validation, and evolution. Generic process models and specific models like waterfall, evolutionary development, and incremental delivery are explained.
This document discusses different process models used in software development. It describes the key phases and characteristics of several common process models including waterfall, prototyping, V-model, incremental, iterative, spiral and agile development models. The waterfall model involves sequential phases from requirements to maintenance without iteration. Prototyping allows for user feedback earlier. The V-model adds verification and validation phases. Incremental and iterative models divide the work into smaller chunks to allow for iteration and user feedback throughout development.
The document provides an introduction to software engineering and discusses key concepts such as:
1) Software is defined as a set of instructions that provide desired features, functions, and performance when executed and includes programs, data, and documentation.
2) Software engineering applies scientific knowledge and engineering principles to the development of reliable and efficient software within time and budget constraints.
3) The software development life cycle (SDLC) involves analysis, design, implementation, and documentation phases to systematically develop high quality software that meets requirements.
The document outlines topics related to quality control engineering and software testing. It discusses key concepts like the software development lifecycle (SDLC), common SDLC models, software quality control, verification and validation, software bugs, and qualifications for testers. It also covers the quality control lifecycle, test planning, requirements verification techniques, and test design techniques like equivalence partitioning and boundary value analysis.
Evolutionary process models allow developers to iteratively create increasingly complete versions of software. Examples include the prototyping paradigm, spiral model, and concurrent development model. The prototyping paradigm uses prototypes to elicit requirements from customers. The spiral model couples iterative prototyping with controlled development, dividing the project into framework activities. The concurrent development model concurrently develops components with defined interfaces to enable integration. These evolutionary models allow flexibility and accommodate changes but require strong communication and updated requirements.
Prescriptive process models attempt to organize the software development life cycle by defining activities, their order, and relationships. Early models like code-and-fix lacked predictability and manageability. Newer models strive for structure and order to achieve coordination, while allowing for changes as feedback is received. However, relying solely on prescriptive models may be inappropriate in a world that demands flexibility and change.
The document discusses the software design process. It begins by explaining that software design is an iterative process that translates requirements into a blueprint for constructing the software. It then describes the main steps and outputs of the design process, which include transforming specifications into design models, reviewing designs for quality, and producing a design document. The document also covers key concepts in software design like abstraction, architecture, patterns, modularity, and information hiding.
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.
Learn how and what is Spiral Model. This was made during 3RD Year. From Eastern Visayas State University - Main Campus, Tacloban City, Leyte, Philippines
CREATED BY:
Aguilar, Fatima Joy
Arpon, Benedict Julius Steven
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.
The document discusses the Software Development Life Cycle (SDLC), including its objectives, common phases and models. The key models described are waterfall, prototyping, spiral, RAD and agile. Waterfall is the classical sequential model but is inflexible. Prototyping and spiral address changing requirements through iterative cycles. RAD focuses on rapid development through reuse, workshops and early user testing. Agile methods emphasize speed, reduced formal processes and adaptability. The conclusion recommends RAD for mashup projects due to its support for iterative requirements changes and modular development.
1. Software development life cycle models break down the development process into distinct phases to manage complexity. Common models include waterfall, incremental, evolutionary (like prototyping and spiral), and component-based.
2. The waterfall model follows linear sequential phases from requirements to maintenance. Incremental models iterate through phases. Evolutionary models use prototypes to evolve requirements through customer feedback.
3. The spiral model is an evolutionary model representing phases as loops in a spiral, with risk assessment and reduction at each phase. It aims to minimize risk through iterative development and prototyping.
The V-Model is a software development lifecycle model that structures testing activities in parallel to steps in the design process. It extends the waterfall model by performing testing at each development stage in both forward and reverse direction. This allows bugs to be found early and defects to be tracked proactively. The V-Model follows a strict process to develop quality software and constantly measures productivity through test case creation and coverage. However, it requires significant resources and money, and changes midway require updating documentation.
The document discusses the incremental software development model. It defines the incremental model as one where the whole software requirement is divided into multiple builds. Each build or module independently goes through the requirements, design, implementation, and testing phases. Subsequent builds then add new functionality to the system until the full product is completed. The incremental model is best for projects where major requirements are known but some details may evolve over time, and there is a need to release portions of the software early to the market. Advantages include developing working software quickly, flexibility to change scope, and lower initial costs. Disadvantages include needing good upfront planning and design work as well as potentially higher total costs than traditional models.
The document discusses various software development life cycle (SDLC) models. It describes the phases of SDLC as requirements gathering and analysis, design, development, testing, implementation, and maintenance. Several common models are explained in detail, including the waterfall model, prototyping model, incremental model, and spiral model. The waterfall model follows a sequential process from requirements to maintenance, while other iterative models allow for more customer feedback and flexibility to change requirements over multiple iterations of development. Choosing the appropriate model depends on factors like project risks, requirements stability, and need for early delivery of basic functionality.
The document discusses the phases of the Software Testing Life Cycle (STLC). It begins by introducing the group members and defining software testing as a process to find bugs by executing a program. It then outlines the six main phases of the STLC: 1) Requirements analysis to understand requirements and identify test cases, 2) Test planning to create test plans and strategies, 3) Test case development to write test cases and scripts, 4) Environment setup to prepare the test environment, 5) Test execution and bug reporting to run tests and log defects, and 6) Test cycle closure to review testing artifacts and lessons learned. Each phase is described in 1-2 sentences with its activities, deliverables, and examples provided.
This document discusses various topics related to event management and software development. It covers the software development life cycle (SDLC) including both traditional and agile models. It discusses requirements, databases, modeling languages, internet of things, Java features, Android development, HTTP, and .NET. The key topics covered are SDLC methodologies (waterfall, agile), database concepts (OLTP, OLAP, queries), modeling tools (UML, StarUML, Umlet), sensors and devices for IoT projects, programming languages (Java, features; Android architecture), web protocols (HTTP, client-server), and development platforms (.NET languages, libraries).
The document discusses different software process models used in software development. It describes the waterfall model as a linear sequential process moving from requirements to design to development and so on. The iterative model develops software incrementally in iterations to add more features. The V model maps each development phase to a testing phase. Other models discussed include RAD, spiral and agile models.
SDLC-Software Development Life Cycle fundamentals /basics
The Presentation provides fundamentals of SDLC . The intent is to provide the high level overview to the readers .Details on teh SDLC process , Frameworks are provided.
Feedback for improving the contents are always welcome !
The document discusses various software development life cycle (SDLC) models including waterfall, iterative, spiral, V-model, big bang, agile, RAD, and prototyping. It provides details on the typical phases and processes involved in each model as well as scenarios where each may be best applied. The key SDLC models support traditional sequential development or iterative and incremental development with customer feedback.
SWE-401 - 2. Software Development life cycle (SDLC)ghayour abbas
The document describes the Software Development Life Cycle (SDLC) which is a structured process for developing software through stages including communication, requirement gathering, feasibility study, system analysis, software design, coding, testing, integration, implementation, and operation and maintenance. It also discusses several software development paradigms that guide the development process, such as waterfall, iterative, spiral, V-model, and big bang models.
The document provides an overview of the Software Development Life Cycle (SDLC) including its various stages and models. The key points are:
1. SDLC is a process that consists of planning, analysis, design, implementation, testing, deployment, and maintenance phases to develop and maintain software.
2. The stages include planning, requirements analysis, design, development, testing, deployment, and maintenance.
3. Common models include waterfall, iterative, spiral, V-model, and agile. Waterfall is the earliest and most basic sequential model while iterative and agile are more flexible to changing requirements.
The Software Development Life Cycle (SDLC) is a framework that defines the steps and tasks involved in software development. It consists of planning, implementation, testing, documentation, deployment, and maintenance. The SDLC aims to improve software quality and the development process. There are several models for the SDLC, including waterfall, V-shaped, and incremental. The waterfall model involves completing each phase fully before starting the next. The V-shaped model focuses on sequential execution and increased testing. The incremental model divides the project into smaller iterations to produce working software early.
The document describes various software development life cycle (SDLC) models. It discusses the waterfall model, iterative model, spiral model, V-model, and big bang model. For each model, it provides an overview of the design, typical application scenarios, and pros and cons. The key stages of the waterfall model are outlined in detail, including planning, requirements, design, implementation, testing, deployment, and maintenance.
1. object oriented concepts & principles poonam bora
Here is an object diagram defining the Book object with attributes and operations:
[OBJECT DIAGRAM]
Book: Book
- title: string
- author: string
- pages: int
+ read()
+ turnPage()
+ getTitle(): string
+ getAuthor(): string
This object diagram defines a Book object instantiated from the Book class. The Book object has:
- Private attributes title (string), author (string), and pages (int)
- Public operations read(), turnPage(), getTitle() which returns a string, and getAuthor() which returns a string
The colon (:) separates the object name from the class name. The visibility of each attribute
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.
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.
The document discusses different software development models. It describes the waterfall model as the oldest and most linear sequential model, where each phase must be completed before moving to the next. The phases are requirements, design, coding/implementation, testing, and maintenance. While simple, it is not suitable for complex or long-term projects where requirements may change. The incremental model allows for more flexibility and ability to change requirements by developing the product incrementally in iterations until complete.
This document discusses different software life cycle models, including the classical waterfall model, iterative waterfall model, evolutionary model, prototyping model, and spiral model. It describes the phases and advantages and disadvantages of each. The classical waterfall model is considered theoretical while the iterative model is more practical but rigid. The evolutionary and prototyping models are useful when requirements are unclear. The spiral model subsumes other models but is complex. The appropriate model depends on the project's risks and understanding. Adhering to a model helps produce quality software systematically.
The document summarizes different software process models including the waterfall model, incremental model, prototyping model, and spiral model. The waterfall model represents the software development process as sequential phases such as requirements, design, implementation, testing, and maintenance. The incremental model delivers software in increments that add functionality. The prototyping model develops prototypes to understand requirements. The spiral model delivers software in incremental releases while resolving risks through each iteration.
The document discusses various software development life cycle (SDLC) models including waterfall, prototype, incremental, spiral, RAD, V-model, and agile models. It provides details on when each model is typically used based on factors like clear vs unclear requirements, small vs large projects, and stable vs changing requirements. It also outlines the key stages and advantages/disadvantages of each model.
This document discusses software process models. It defines a software process as a framework for activities required to build high-quality software. A process model describes the phases in a product's lifetime from initial idea to final use. The document then describes a generic process model with five framework activities - communication, planning, modeling, construction, and deployment. It provides an example of identifying task sets for different sized projects. Finally, it discusses the waterfall process model as the first published model, outlining its sequential phases and problems with being rarely linear and requiring all requirements up front.
The document discusses the waterfall model of the software development life cycle (SDLC). It is a linear sequential model where each phase must be completed before the next begins. The phases include requirements gathering, design, implementation, testing, deployment, and maintenance. While simple and easy to understand, the waterfall model does not allow for reflection or revisions between phases and is not well-suited for complex or long-term projects with changing requirements.
The document discusses and compares several software development life cycle (SDLC) models:
1) The waterfall model is a linear sequential flow where progress flows steadily through phases without backtracking. It is best for projects with clearly defined requirements.
2) The V-shaped model extends the waterfall model with early testing. It works well when requirements are easily understood.
3) The spiral model combines prototyping and risk assessment in cycles. It is favored for large, expensive projects built in phases.
4) The iterative model develops a system through repeated cycles and smaller portions, allowing learning from earlier versions. It produces value early and accommodates some changes.
5) The concurrent model develops tasks and states concurrently through framework
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.
The document discusses several software development life cycle (SDLC) models, including waterfall, iterative, prototyping, and spiral models. It describes the basic stages and processes involved in each model. The waterfall model involves sequential stages of requirements analysis, design, implementation, testing, and deployment. The iterative model allows revisiting earlier stages and incremental releases. The prototyping model uses prototypes to gather early user feedback. Finally, the spiral model combines iterative development and risk analysis, proceeding in cycles of planning, risk analysis, development, and evaluation.
Similar to Waterfall model in system development life cycle (20)
Henri Fayol developed 14 principles of management that are still widely used today. The principles include division of work, where each employee has clearly defined tasks; authority and responsibility, where authority is delegated proportionate to responsibility; and discipline, where all employees must obey orders and rules. Other principles include unity of command, where each employee reports to one supervisor; unity of direction, where all activities are coordinated to achieve common goals; and remuneration, where pay is fair based on job requirements. The 14 principles provide a framework for effective management in organizations.
The document discusses rational decision making in management information systems. It defines a rational decision as one that effectively and efficiently achieves the goal for which it was made. It notes that rationality can be judged based on the process of decision making rather than just the outcome. Rationality is a multidimensional concept that can vary based on factors like the organization, situation, and individual views. The types of rationality include decisions that maximize objectives, are made with the knowledge available, are made through a conscious process, are oriented toward the organization, and achieve personal goals.
Objectives of Planning in Management, The essential objectives of planning in business organization can be described as follows, management study online MSO
Planning involves deciding in advance how to approach future events. It allows organizations to forecast potential outcomes and make choices to increase certainty. Some key characteristics of planning include:
- Planning is goal-oriented and forward-looking, aimed at forecasting the future.
- It is a continuous and dynamic process that occurs at all levels of management. Planning also provides alternatives and choices for how activities can be carried out.
- Planning serves as the primary function that other management functions like organizing and staffing build upon. It is integral to all operations within an organization.
What is a Importance of Planning in business organisation, point to point define here, planning reduces uncertainty, make objective clear, provide basic control,
The document discusses several limitations that can impact rational decision making. It notes that managers may focus on finding the right answer rather than clearly defining the problem. Insufficient knowledge about a problem or its alternatives can also limit rational decisions. Time pressures may lead to hasty decisions without full rational consideration. Environmental factors assumed when making a decision could change, undermining the rationality of the choice. Other limitations include the need for compromise, misjudging people's values, poor communication, uncertainty, and an inability to properly analyze available knowledge and human behavior.
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Lesson Outcomes:
- students will be able to identify and name various types of ornamental plants commonly used in landscaping and decoration, classifying them based on their characteristics such as foliage, flowering, and growth habits. They will understand the ecological, aesthetic, and economic benefits of ornamental plants, including their roles in improving air quality, providing habitats for wildlife, and enhancing the visual appeal of environments. Additionally, students will demonstrate knowledge of the basic requirements for growing ornamental plants, ensuring they can effectively cultivate and maintain these plants in various settings.
Post init hook in the odoo 17 ERP ModuleCeline George
In Odoo, hooks are functions that are presented as a string in the __init__ file of a module. They are the functions that can execute before and after the existing code.
8+8+8 Rule Of Time Management For Better ProductivityRuchiRathor2
This is a great way to be more productive but a few things to
Keep in mind:
- The 8+8+8 rule offers a general guideline. You may need to adjust the schedule depending on your individual needs and commitments.
- Some days may require more work or less sleep, demanding flexibility in your approach.
- The key is to be mindful of your time allocation and strive for a healthy balance across the three categories.
How to Create User Notification in Odoo 17Celine George
This slide will represent how to create user notification in Odoo 17. Odoo allows us to create and send custom notifications on some events or actions. We have different types of notification such as sticky notification, rainbow man effect, alert and raise exception warning or validation.
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1. WATERFALL MODEL IN SYSTEM
DEVELOPMENT LIFE CYCLE (SDLC)
The waterfall model of the software life
cycle which 1st put forward by Royce in
1979. It become popular in the 1970s.
However, when Boehm brought attention to
it. there are many variants of the waterfall
model depending on the organization the
use the model and the specific projects.
Presentation by Management Study Online (MSO)
2. SEQUENTIAL WATERFALL
MODEL
The Above figure depicts Linear-Sequential Waterfall model.
Another variant of the waterfall model is the one in which each phase's
results flow into the next and the process. Ideally process in an orderly
fashion. this can be illustrated from the next figure.
3. FIG 2 : WATERFALL MODEL
In the waterfall model "With feedback the process is
structured as a cascade of phases where the output
of one phase constitute the input to the next one.
4. 1. FEASIBILITY STUDY
Feasibility study is study about finding out the Problems. in this
phase feasibility is an evaluation and analysis of the potential of
proposed which is based on extensive investigation and research to
support to process in decision making.
Aims
Work out on overall understanding of the problems.
Generate Different Solution for solving the Problem.
Find out the Solution among alternative which is suitable and best.
Analysis each and every alternatives solution in terms of :
What are the Resources Required
What are the Cost of Development
How much time taken in development etc
5. 2. REQUIREMENT ANALYSIS AND SPECIFICATION
In this phase Developer understand the exact
requirements of the customers. after the knowing
requirement of the customers. developer need to
gathering information and analysis it.
Aims
Requirement gathering and analysis
Analysis the collected data.. is relevant or not
Requirement specification
Find out if any requirement is not completed. and solve it.
6. 3. DESIGN AND
SPECIFICATION
In this design phase developer transform the Gathered
requirement specification data into a particular format
and bring it in a structure format.
Aims
Design phase transforms requirement specification data into a
Programming language structure.
Bring all gathered customers requirement in a particular format
for developing the software.
7. 4. CODING AND MODULE
TESTING
In this Phase developer start developing this software.
now in this phase developer start coding using
programming language according to the requirement of
the customers.
Aims
Convert software design into source code.
Dividing in module if software have many function.
Testing each module after the coding. if developer test
individual module is working correctly or not.
8. 5. INTEGRATION AND SYSTEM TESTING
In this phase after the developing every module and its
testing developer integrate all module and made one
software/system. "For example: developer divided one
software into 4 module and after the developing of
module 1, 2, 3, and 4 developer integrate all module
each other and developed one software" after the
integration he test whole software and test each and
every functions of the software.
Aims
Integrate all module in a system.
Ensure that the developed system functions working according to
the requirement of the customers as specified in the document.
9. 6: DELIVERY
In this phase of waterfall model after the complete
development of the software. developer distribute and
provide software to users for fulfilling users needs and
Desire.
10. 7. MAINTENANCE
Corrective Maintenance:
Corrective maintenance is kind of maintenance in which correct
errors which are not discovered during the projects development
phase.
Perfection Maintenance:
Perfection maintenance in also a kind of maintenance in which
developer improve implementation of the system.
and developer try to enhance the Facilities and Functions of the
system.
Adoptive Maintenance:
As per the Environment Software must be maintenance. (For
example:- A software which is developed for Window xp in 2005
but Now peoples are using Window 7 or 8. in this case developer
maintain his software and develop according to window 7 and 8
supporting).
11. All Content Are Written by MSO Team
http://www.managementstudyonline.in/
You are free to use these Presentations for your
personal and business presentations.
Don’t do this.
Resell or distribute these Presentations.
Put these Presentations. on a website for download. This
includes uploading them onto file sharing networks like
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Pass off any of our created content as your own work
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