The phrase "a core development" is correct and usable in written English.
It can be used to refer to a fundamental or essential aspect of a project, process, or concept that is central to its success or functionality.
Example: "The team identified a core development that would significantly enhance the software's performance."
Alternatives: "a fundamental development" or "a key development".
He would do well to adopt it as a core development tool.
The project was launched in 2010 with funding from the US National Science Foundation and includes a core development team at University at Buffalo, Michigan Technological University, and University of South Florida, along with a group of collaborators from the international community (https://vhub.org/about/vhubteam).
Fourteen people contributed to the game, with a core development team of four.
Preliminary work on Red Dead Redemption began in 2005; full development commenced in 2006, following the formation of a core development team.
Education Children's education is a core development issue towards the Millennium Development Goals.
Realizing the rights and equality of women is not only a core development goal in itself, but it is also the key to the survival and development of children and to building healthy families, communities and nations.
Questions and answers about source code are posted to the room on a daily basis and, as a matter of principle, the core development team attempts to provide immediate responses on the Gitter channel.
Despite this, I remain unconvinced that outsourcing core development is a good strategy for startups.
I can live with that, but my expectation is that core development is not the way to develop an app.
Last week, he re-pledged a 50% increase in America's core development assistance over the next three years.
The financing will be used to build a core product development team at m>Path's Palo Alto and San Francisco offices, the company said in a statement.
