Speaker
Gancho Dimitrov
(CERN)
Description
The ATLAS experiment at CERN is one of the four Large Hadron Collider
experiments. The DCS Data Viewer (DDV) is an application that provides
access to historical data of the ATLAS Detector Control System (DCS)
parameters and their corresponding alarm information. It features a
server-client architecture: the pythonic server serves as interface to
the Oracle-based conditions database and can be operated stand alone
using http requests; the client is developed with the Google Web
Toolkit (GWT) and offers a user friendly browser independent web
interface. The client data visualization is done using various output
plugins such as java or javascript applets which are integrated using
an open JSON interface allowing for easy plugin development. The
default output provides charts, histograms or tables with broad
filtering and sorting capabilities. Further, export to ROOT files is
supported and smartphone compatibility is taken into consideration. A server-based configuration storage facility allows e.g. for
sharing of resulting plots or embedding into other web applications
invoking the tool with a single configuration URL. Web security
constraints along with database dedicated protection mechanisms permit
a successful exposure of the tool to hundreds of collaborators
worldwide.
Author
Charilaos Tsarouchas
(CERN)
Co-authors
Gancho Dimitrov
(CERN)
Stefan Schlenker
(CERN)
