Introduction to the WS-PGRADE/gUSE Science Gateway Framework - Science Gateways for Distributed Computing Infrastructures - page 28

A special authentication solution is the use of robot certification. Instead of
identifying users, the robot certi cation identi es trusted applications which can run

by work ows from WS-PGRADE. The main advantage of this certi cation is to run

work ows without any direct authentication data upload; thus end-users just need to

import from the Application Repository the previously uploaded robot certi cate-

aware work ows for submissions.

WS-PGRADE also provides statistical information about job executions from
the viewpoint of portal, DCI, user, and work

ow. This solution is helpful for
administrators in resource settings, and for users in middleware, resource selection
and in job execution time estimation.

2.6 Customizing WS-PGRADE/gUSE

In order to create application-speci c gateways from WS-PGRADE/gUSE four

customization methods have been developed depending on the user community
demands (see also Fig. 2.7 ):
Mode 1: Power user/end-user mode: This customization mode contains two
variants:
1. In power user mode the power users mentioned in Sect. 2.5.1 create and share
applications (work ows), and the end-users typically import and execute them.

Using this solution, development of science gateways technically means the
development of new work

ow applications that specialize the original generic
WS-PGRADE/gUSE gateway toward the needs of the user community.

Fig. 2.7 Customization modes of gUSE