The phrase "a useful application" is correct and usable in written English.
It can be used when referring to a practical or beneficial use of a tool, software, or concept in various contexts.
Example: "This software provides a useful application for managing project timelines effectively."
Alternatives: "a practical use" or "a beneficial application".
Contacts- This a useful application that helps you because you can use it on Mail and Maps.
We took a simple concept of SONAR technology and used our hardware and software skills and intuition to create a useful application.
When biodiversity is coupled with research that is looking for a useful application or product from nature the term bioprospecting is often used.
Aral Balkan, who gave what I thought was the best talk of the two days, used his Feathers iPhone App for Twitter as an example of making a useful application that is also fun to interact with.
A useful application of a metadata relational table is in the identification of curves used to calibrate radiocarbon ages for variations in atmospheric carbon through time.
But when you think about what goes into a useful application, especially in the business-to-business internal tools in a company use case which forms the bulk of software that's consumed in terms of lines of code written, most of them are primarily a relational database model, and the relational database aspect of it is not an arbitrary format.
This is a useful application of what social psychologists call attribution theory.
Trojan Horse malware is software that appears to be a useful application but is actually malevolent.
In other words, simply sharing location information isn't enough it also needs to be incorporated into a useful application.
If someone does come up with a useful application for smart cards, there are millions of cards in circulation that could potentially use it.
Accordingly, our scaffold will be expected to have a useful application in bone reconstruction.
