WebLab user interfaces

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In the WebLab platform, all user interfaces (GUIs) are built using Portlets. One can understand the Portlet concept as follows:

“Portlets are pluggable user interface software components that are managed and displayed in a web portal. Portlets produce fragments of markup code that are aggregated into a portal. Typically, following the desktop metaphor, a portal page is displayed as a collection of non-overlapping portlet windows, where each portlet window displays a portlet. Hence a portlet (or collection of portlets) resembles a web-based application that is hosted in a portal. Some examples of portlet applications are email, weather reports, discussion forums, and news.” (Wikipedia).

They are defined by JSR-286, the Java Portlet API 2.0[1]. The recommended portal in WebLab is Liferay[2] because of its strong reliability and compliance with the JSR.