- What are problems faced in the waterfall model?
- Why is software maintenance expensive?
- Which is the most expensive phase of SDLC?
- Why is waterfall model not good?
- Why is Waterfall better than agile?
- What is the most expensive part of software development?
- What is the role of SRS in waterfall software development model?
- Is SDLC waterfall or agile?
- What are the major phases in the waterfall model of software development?
What are problems faced in the waterfall model?
Disadvantages of waterfall model Once an application is in the testing stage, it is very difficult to go back and change something that was not well-thought out in the concept stage.
No working software is produced until late during the life cycle.
High amounts of risk and uncertainty..
Why is software maintenance expensive?
As technology advances, it becomes costly to maintain old software. Most maintenance engineers are newbie and use trial and error method to rectify problem. Often, changes made can easily hurt the original structure of the software, making it hard for any subsequent changes.
Which is the most expensive phase of SDLC?
Maintenance is the most expensive and time consuming task. After Maintenance, Implementation is the most expensive task.
Why is waterfall model not good?
Waterfall Model – Disadvantages The disadvantage of waterfall development is that it does not allow much reflection or revision. Once an application is in the testing stage, it is very difficult to go back and change something that was not well-documented or thought upon in the concept stage.
Why is Waterfall better than agile?
Waterfall suits projects with well-defined requirements where no changes are expected. Agile looks best where there is a higher chance of frequent requirement changes. Waterfall is easy to manage and a sequential approach. Agile is very flexible and allows to make changes in any phase.
What is the most expensive part of software development?
The most expensive parts of such software development include the testing and planning stages, which can take up from a month to several years. However, the lifecycle rarely exceeds a 3-year period.
What is the role of SRS in waterfall software development model?
System Requirement Specification(SRS): Software requirement specification (SRS) is a document that completely describes what the proposed software should do without describing how software will do it. SRS is important and difficult task of a System Analyst.
Is SDLC waterfall or agile?
Difference between Agile and Waterfall Model:AgileWaterfallIt follows an incremental approachWaterfall methodology is a sequential design process.Agile methodology is known for its flexibility.Waterfall is a structured software development methodology so most times it can be quite rigid.14 more rows•Sep 19, 2020
What are the major phases in the waterfall model of software development?
The waterfall model is a sequential design process 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.