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HIFI SPR/SCR status. Peter Roelfsema HIFI ICC manager/system engineer. SPR/SCR processing. Two types of problems: It does not work as promised SPR – Software Problem Report I want something new SCR – Software Change Request
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HIFI SPR/SCR status Peter Roelfsema HIFI ICC manager/system engineer
SPR/SCR processing • Two types of problems: • It does not work as promised SPR – Software Problem Report • I want something new SCR – Software Change Request • All registered and tracked using SPR/SCR system (ESA built) • CCB monitors progress and decides on disposition • Views whole chain; submission implementation test and verification • Weighs development cost v.s. operational impact • Also takes knock-on effects into consideration • Several different categories of SPR/SCRs treated by 2 CCBs • ICC CCB – roughly monthly • ICC development environment, ICC specific tasks (e.g. AOT logic when relevant), general data processing (IA, QLA, pipeline etc. etc.), calibration, documentation • HIFI CCB-MRB – (bi-)weekly • OBSW, MIB, CUS scripts (mainly ILT), EGSE environment issues SPR/SCR status - PRR
Status • Continuous ongoing process • since 13/10/2003: 673 SxR’s closed, 23 rejected, 74 withdrawn or archived. • High priority problems generally solved very fast • Open mostly not serious • ‘hard to reproduce’ • ‘just’ irritating • To be verified waiting for data • requires hardware • dedicated data taking and verification gets low priority SPR/SCR status - PRR