Explain about spiral model, Software Engineering

Q. Explain about Spiral Model?

The Spiral model is one of the well-liked model used for large projects. This model was projected by Boehm in 1988 and it focuses on minimizing the risk through the use of prototype. We are able to view the Spiral Model as a waterfall model with each stage preceded by Risk analysis stage. The model is separated into four quadrants each with a specific purpose as shown in the fig. Every spiral represents the progress made in the project. In the first quadrant objectives and alternative means to develop product and constraints imposed on the products are identified. The next quadrant compact with identification of risk and strategies to resolve the risks. The third bottom right quadrant goes after the waterfall model. In the bottom left quadrant customer calculates the product requirements are further refined. If at a few stage during the project risk cannot be resolved project is terminated. The model is utilized if the requirements are very complex or several new technology is being introduced by the company.

Advantages:

1. The model tries to resolve every possible risk involved in the project.

2. Every phase of the model enhances the quality of the product.

Disadvantages:

1. The model is suitable merely for large size projects because in some cases the cost of risk analysis may perhaps exceed the actual cost of the project.

2. Expertise in risk management along with project management is essential.

843_Explain about Spiral Model.png

  Spiral Model

Posted Date: 7/26/2013 3:22:18 AM | Location : United States







Related Discussions:- Explain about spiral model, Assignment Help, Ask Question on Explain about spiral model, Get Answer, Expert's Help, Explain about spiral model Discussions

Write discussion on Explain about spiral model
Your posts are moderated
Related Questions
Define the computer based system. The computer based system can be explained as "a set or an arrangement of elements that are organized to accomplish some predefined goal by pr

Q. Write short notes on Decision Table? Decision Table: While the process logic for a process involves multiple conditions as well as is very complicated it isn't advisable t

Distinguish between verification and validation. Verification refers to the set of activities that make sure that software correctly executes a specific function. Validation re

What are the advantages of using these specific languages of SRS?      The major benefit of using a natural language is that both client and superior understand the language. T

describe the types of coupling and cohesion.?

Explain the role and functions of a Systems Analyst in the overall project development.

What is Transform mapping? The transform mapping is a set of design steps applied on the DFD in order to map the transformed flow characteristics into exact architectural style

What is ripple effect?       The ripple effect is a term used to describe a situation where, like the ever expanding ripples across water when an object is dropped into it, an

What are white-box, black-box and gray-box testing? White Box (or glass box) testing is the METHOD of giving i/p to the system and checking how the system processes i/p to prod

Q. Show the cost drivers used in COCOMO model? A variety of attributes of cost drivers used in COCOMO model are: 1. Physical attributes : These are worried with required