Abstracts

TUDT001 (Talk)

Quality Control, Testing and Deployment Results in NIF ICCS {*}

J.P. Woodruff, D.D. Casavant, B. D. Cline, M. R. Gorvad (LLNL)

The strategy used to develop the NIF Integrated Computer Control System (ICCS) calls for incremental cycles of construction and formal test to deliver a total of 1 million lines of code. Each incremental release takes four to six months to implement specific functionality and culminates when off-line tests conducted in the ICCS Integration and Test Facility verify functional, performance and interface requirements. Tests are then repeated on-line to confirm integrated operation in dedicated laser laboratories or ultimately in the NIF. Test incidents along with other change requests are recorded and tracked to closure by the software change control board. Annual independent audits advise management on software process improvements. Extensive experience has been gained by integrating controls in the prototype laser preamplifier laboratory. The control system installed in the preamplifier lab contains five of the ten planned supervisory subsystems and seven of sixteen planned front-end processors (FEPs). Beam alignment, timing, diagnosis and laser pulse amplification up to 20 Joules was tested through an automated series of shots. Other laboratories have provided integrated testing of six additional FEPs. Process measurements including earned-value, product size and defect densities provide software project controls and generate confidence that the control system will be successfully deployed.

{*} This work was performed under the auspices of the U.S. Department of Energy by University of California Lawrence Livermore National Laboratory under contract No. W-7405-Eng-48.

eCONF C011127    ePROCEEDINGS COMMITTEES PARTICIPANTS    PROGRAM SUMMARY ICALEPCS 2001  eCONF
	Last updated: September 13, 2002 Website Problem? Contact Technical Publications