For instance, an application might have a Web-based HTML front end for external customers, and a more complete Java application front end for internal users.

例如，一个应用可能会有供外部客户访问的基于web的HTML前端，以及供内部人员使用的更完整的应用前端。

youdao

The Web offered a new model of content distribution, and HTML and Java were indeed major advances.

FORBES: "Phone" Is Just an App; Why Regulate It?

Those settings run the gamut from simple emulation, to setting it to run a particular version of Java, to even replacing strings within the HTML or CSS so that the app renders properly in an upgraded browser.

FORBES: Browsium Allows Your IT Dept To Finally Upgrade From IE6