Advantage and disadvantage of waterfall model of software engg?
Waterfall model tends to consume a lot more time compared to other software development models though it is able to pinpoint definite starting and ending points for a given project. This model assumes the requirements to remain static during the life of the project, so there is little or no chance of incorporating new changes to the software once work begins. If changes are tried to be incorporated it leads to more confusion and further delays. Its strong points lie in the fact that it is sequential, so there would be no confusion on the steps and the processes are straight down--no need to worry about so many conditions while working on a project. Additionally, this type of model tends to pack up on so much documentation. Therefore, such tends to be useful for future code revisions and reference. However, its drawbacks become apparent in the length of time a project will be developed and the cost it is able to consume.
Advantage of waterfall model : It is simple and easy to use. Dis Advantage of waterfall model : no user feedbacks are taken. Read More
All industries are using the waterfall model for software development. Read More
Advantage and disadvantage of "v shape model"? Read More
Waterfall is one of the software development life cycle model. Waterfall model has five stages. Read More
Waterfall model Read More
Answering "List the advantage and disadvantage of object oriented database model?" Answering "List the advantage and disadvantage of object oriented database model?" Read More
No, water fall model in software engineering is not a flexible model . Waterfall model have certain limitations like we can not go back into earlier phase . Read More
The RAD model, also known as the Rapid Application Development, is a linear software for creating prototypes. The Waterfall model is a sequential software. Read More
Waterfall model is the best software life cycle model. Read More
Waterfall model is a software development life cycle model. In Waterfall model have five stages which are requirement gathering, design, coding , testing, maintenance . Read More
One advantage of prototyping is the fact that you can make changes to the model before building the actual model. One disadvantage of prototyping is that it can take too long. Read More
SDLC that is software development life cycle is a way to efficiently carry out software engineering. The only disadvantage of SDLC could be that the phases should be carried out properly there is not option of reverse engineering in every model. Read More
What are the advantages and the disadvantages of a waterfall model Also how do you overcome the disadvantage of a waterfall model?
An Advantage is that it is reasonably good for new projects and it is a good model to teach The Main Disadvantage of the waterfall model is that it does not allow for very much Iteration. for example you are in the testing stage and you realize that something has not been designed correctly. In theory if following the model as closely as possible and trying to make it iterative this would lead you back… Read More
The waterfall model is the oldest and most widely used model in the field of software development. There are certain advantages of the waterfall model, which causes it to be the most widely used model as yet. Some of them can be listed as under. Needless to mention, it is a linear model and of course, linear models are the most simple to be implemented. The amount of resources required to implement this model is… Read More
Models of software engineering 1.Waterfall model 2. Spiral model 3. photo type model. Read More
Which phase consumes the maximum effort in waterfall model for developing a software product and why?
The testing phase consumes the maximum effort in waterfall model. Read More
Iterative waterfall model is a software process model also called the incremental process model. http://en.wikipedia.org/wiki/Iterative_and_incremental_development Read More
The waterfall model is also known as the linear sequential model. This model is very easy to implement, and output is generated after every stage. However, real projects usually don't follow the flow in the model. Read More
The advantage of physical model is that it is in 3-D The disadvantage is that it is the same size and it is ONLY in 3-D! Read More
It consists of different stages of software life cycle. Read More
The waterfall model is a linear model that follows a sequence as activities move from one to another. The spiral model is a circular model that breaks software development into smaller segments. Read More
Explain how both the waterfall model of the software process and the prototyping model can be accommodated in the spiral process model?
the waterfall model gives us prototyping , and spirl model gives us product , so the set of the waterfall accommodat in the spirl to gives us this product. bay... Read More
Advantage: - 1-You get the software according to your demand. 2-It is best for small projects. 3-It is very much sequential & systematic. Read More
The waterfall model is a sequential software development process, in which progress is seen as flowing steadily downwards (like a waterfall) through the phases of Conception, Initiation, Analysis, Design (validation), Construction, Testing and maintenance. The unmodified "waterfall model". Progress flows from the top to the bottom, like a waterfall. It should be readily apparent that the waterfall development model has its origins in the manufacturing and construction industries; highly structured physical environments in which after-the-fact… Read More
The advantage of evolutionary model in software engineering is that the requirements can be captured more accurately. The other advantage is that the progress can be easily measured. Read More
The waterfall development model is primarily used by large software companies. The incremental model is used by small companies and individuals. Read More
In waterfall model we have 5 stages, that gives a software product at the end. In prototyping model, a prototype is made instead to refine the requirements more properly. Read More
in waterfall model ,a working model of the software is only available at a very later stage therefore there is no room for correction/changes .it is mainly used when the developers have clear idea of the software and they have built similar software in the past. in increment process model ,similar steps to waterfall model are applied but after each cycle a new version of the product is released. this process is continued till we… Read More
Classical waterfall model involves sequential steps of software development life cycle.The complete product is retrieved at the end.However, in Iterative waterfall model, the customer receives modules of the project before the completion of the complete project. The final product is received at the end only. Read More
The waterfall development model has its origins in the manufacturing and construction industries, 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. Read More
The advantage of a build and fix model is the model can be reconfigured after it is built. The disadvantage is the model is limited in the its detail. Read More
Waterfall model uses sequential design process, in which each phase is tested in level by level like a waterflow from top to bottom. In waterfall model once we come out of the phase, there is no possibility to change something according to the new requirement, once the phase is done then it is just done. Waterfall model is applicable for small projects. Read More
Iterative waterfall model is the model which is best suited for real time examples. Read More
Linear sequential model is also called as classic life cycle method, which is also known as waterfall model =>this waterfall model in software process model involes five stages 1. communication 2.planning 3.modeling 4.construction 5.deployment Read More
because, there can be back process of every step in waterfall model, see the book of software engg by somerville. Read More
There are many advantages of using prototype model over waterfall model . Some of the advantages are: 1) Excellent for gathering and refining requirements. 2) Useful for assessing and reducing risks. Read More
Waterfall model has following advantages : 1) Each stage has well defined deliverable or milestones. 2) It acts as a template (guiding model) into which methods for analysis, design, code, test and maintenance can be placed. Read More
The waterfall model is the oldest paradigm for software engeneering. However , over the past two decades,criticism of this process model has caused even ardent supporters to question its efficiency.The waterfall model, sometimes called the classic life cycle, suggests a systematic, sequential approaches to software development. Read More
Expalin different between waterfall model and prototyping model ? Expalin different between waterfall model and prototyping model ? Read More
In waterfall model, once we come out of the phase, there is no chance of modifying it again. This is one of the major drawback for waterfall model. Read More
The waterfall model derives its name due to the cascading effect from one phase to the other as is illustrated in Figure In this model each phase well defined starting and ending point, with identifiable deliveries to the next phase. Note that this model is sometimes referred to as the linear sequential model or the software life cycle. Read More
Most appropriate software process model to be used for managing the development of a system to control anti-lock braking in a car?
waterfall Read More
Major difference between waterfall and iterative model is that waterfall model has a linear process in which full product is available after the last phase, while incremental model full product is available after several such phases. Read More
The advantage of a network database model is performance and ease of implementing application logic. The disadvantage is lack of flexibility, since the network model impose on you constraints in usage. Read More
Waterfall model is a classical model. It is simplest of all the models. It involves sequential approach. Read More
Modified waterfall model verified and validate the user requirements for every phase. Meanwhile, waterfall did not, it only verify and validate user requirement at the end of the phase. Read More
General Software Process Models are 1. Waterfall model: Separate and distinct phases of specification and development. 2. Prototype model. 3. Rapid application development model (RAD). 4. Evolutionary development: Specification, development and validation are interleaved. 5. Incremental model. 6. Iterative model. 7. Spiral model. 8. Component-based software engineering Read More
1.spiral model can be accommodate in prototyping and waterfall model. it is a model of iterative process as prototyping and also a systematic approach to solve a problem as in waterfall model. 2. spiral model take problem as a series of step to solve a problem as in waterfall, and take the contribution of users or customers in each phase as in prototyping model. Read More
Which form of software development model is most suited to a system where all the requirements are known at the start of a project and remain stable throughout the project?
A waterfall model would be a good approach for that type of project. Read More
I believe the scope of requirements changes in Waterfall model is less than that in Spiral Model. In Waterfall model, you progress to the next stage only when the requirements of the stage above it are finalized and signed off. So litteraly we dont have any scope of changing the requirements once we move down the phases in this model. However, Spiral model gives us flexibility to change the requirements and scope anytime during the… Read More