Answer:
Incremental method.
Explanation:
Software development life cycle (SDLC) can be defined as a strategic process or methodology that defines the key steps or stages for creating and implementing high quality software applications.
An incremental model refers to the process in which the requirements or criteria of the software development is divided into many standalone modules until the program is completed.
Hence, an incremental method typically involves developing a system through repeated cycles and smaller portions at a time, enhancing and evolving the system over time.
In SDLC, a waterfall model can be defined as a process which involves sequentially breaking the software development into linear phases. Thus, the development phase takes a downward flow like a waterfall and as such each phase must be completed before starting another without any overlap in the process.
Also, a spiral model can be defined as an evolutionary SDLC that is risk-driven in nature and typically comprises of both an iterative and a waterfall model. Spiral model of SDLC consist of these phases; planning, risk analysis, engineering and evaluation.
Answer:
Changing the customer number on a record in the Orders table to a number that does not match a customer number in the customer table would violate referential integrity.
If deletes do not cascade, deleting a customer that has orders would violate referential integrity.
If deletes cascade, customer can be deleted and all orders for that customer will automatically be deleted.
Physical component means Computer Hardware which you can touch and non Physical component means Software, which you can not touch. nonphysical component designed specially for physically component. like Microsoft company designed Software according the Hardware for example Microsoft windows 64 bit could not install on which 32 bit Architecture Hardware.
Answer
There are a lot of advantages of web based applications.
Explanation:
Below are the advantages:
- Web based applications can be accessed from device that is connected to the device.
- No physical software required to download, install, update or manage which saves a lot of administration work for large companies.
- Web based software is compatible with any device or platform. The software is delivered through a browser of the users' choice.
- Mobile device applications allow for access to the software when out of the office.
- Direct access to latest information for Employees where every they are located.
Apart from these, there are lot more benefits, like quick and easy updates, centralized data where data is secure and easy to backup. We can reach anybody, anywhere in the world.
Business costs are drastically reduced by spending less time talking to customers over the phone.
Online training can be finished at user's own time and risk.
It's available 24 hours a day, 7 days a week
The software is always up-to-date
.com means company, so it is ran by a company.
