OASIS: STATUS REPORT
S. Deghaye, L. Bojtar, Y. Georgievskiy, J. Serrano · 2005
OASIS, the Open Analogue Signal Information System, is the LHC era system for the acquisition and display of analogue signals in the accelerator domain. OASIS is based on a three-tier architecture. The upper layer is an application written in Java. It is responsible for waveform display and user interaction. The application server, in the middle tier, uses the OC4J J2EE container and is based on the Enterprise Java Beans. This part takes care, among other things, of the signal connection and the management of the connection settings. The front-end tier is implemented within the FESA framework and controls oscilloscopes and analogue matrices in CompactPCI and VXI format. Today, most of the performance critical features such as the mountain range mode or the scrolling mode have been implemented. However, the problem of remote trigger has still to be addressed. The system was successfully put in production for the TT40/TI8 tests with a small configuration. The next, and bigger, installation is the LEIR machine where OASIS has to be available twenty four hours a day for a longer period and has to handle more than 200 signals.