Real examples that show that being Open helps to improve quality
As all design files are available for Open Designs, it easy for users, producers and other interested people to study the designs and find and signal problems. The following table shows that this in practice also happens.
Project | Date | Bug signaled by | Bug type | Bug description |
SPEC | Early User | 3 | Mechanical problem SFP | |
SPEC | Producer | 1 | Design problem: supply voltage too low | |
FmcAdc100M14b4cha | 03-09-2013 | Producer | 1 | Production Test program, non-functional bug |
White Rabbit Switch | Early User | 2, 3 | Many different bugs | |
White Rabbit Switch | 09-2013 | Early User | 2 | Setting of nsec part of TAI time |
White Rabbit Switch | 08-2013 | User | 2 | WR time from SPEC to NTP daemon. User wrote tool |
White Rabbit Switch | 08-2013 | User | 3 | Display of delay times failed for links over 100km |
White Rabbit core | 09-2013 | User | 3 | Jumps in WR time when used over an out-of-spec length link |
It seems that there are different types of bug reports
- errors that could only be found by studying the designs (so OH made this happen)
- errors that could be found by any user, the user could find a solution because all design information is available.
- errors that could be found by any user, and were just reported to
the developers.
- because the design was Open, there were more users that could make this happen.
Real examples that show that being Open generates new developments
Project | Date | Based on | Institute | Description |
Cute WR | SPEC | China | Minimised version for use as White Rabbit node only | |
SPEXI | 09-2013 | SPEC | INCAA | PXIe bus instead of PCIe bus |
WRPC on new FPGA | 08-2013 | WRPC | NIKHEF | New FPGA Xilinx Kintex-7 platform for White Rabbit main core |
WRPC on new FPGA | 08-2013 | WRPC | GSI | New FPGA Altera platform for White Rabbit main core |
Real examples that show that being Open generates new collaborations
Project | Date | Description |
FMC FD | 10-2013 | Two production companies collaborating with the testing of the cards. |
7 October 2013