GTLAB: Grid Tag Libraries Supporting Workflows Within Science Gateways

Portlet-based Grid portals have become a crucial part of the cyberinfrastructure by providing component-based problem solving environments for scientists. Although portals aim to provide user-friendly environments with easy-to-use interfaces, the development of portals and their portlet components is time consuming. The authors aim to provide reusable components for rapid portlet development. The approach, Grid Tag Libraries and Beans (GTLAB), encapsulates common Grid operations with reusable XML tags. GTLAB also provides a way for creating composite tasks that models the requirements of computational science portals