All basic Info*Engine solutions take advantage of five fundamental concepts: JSP pages, tasks, webjects, groups, and the virtual database (VDB). Both JSP pages and tasks are text-based documents that define how Info*Engine either displays or retrieves information. Webjects are the means by which Info*Engine JSP pages and tasks gather, manipulate, and display data. Groups are the chunks of information generated and manipulated by JSP pages and tasks. The virtual database is the special holding area where groups are stored until they are manipulated or passed along by JSP pages and tasks.