Bootstrap is a free and open-source front-end framework for designing websites and web applications. It contains HTML and CSS-based design templates for typography, forms, buttons, navigation and other interface components, as well as optional JavaScript extensions.
jQuery is a cross-platform JavaScript library designed to simplify the client-side scripting of HTML. It is free, open-source software using the permissive MIT License. Web analysis indicates that it is the most widely deployed JavaScript library by a large margin.
Quartz Scheduler is an open source job scheduling library designed for integration with Java applications. It enables users to create simple or complex schedules for executing tens, hundreds, or thousands of jobs whose tasks are defined as standard Java components.
VHT provides virtual queuing capabilities and callback services that help improve customer service experience across finance, healthcare, retail industries, etc.