Datum is, from its Latin origin, a singular form of data, and may refer to a single item of data. 1 Singular data point.
Front-end developers are responsible for a websiteâs user-facing code and the architecture of its immersive user experiences. In order to execute those objectives, front-end devs must be adept at three main languages: HTML, CSS, and Javascript programming.
The interdependence between the front end interface and the back end programming tends to get ignored at this stage to keep costs down and accelerate agile development iterations. 1  Prototypes are interactive. 2  They model the user experience. 3  They enable extensive user testing.