re level from harrisd ll mit edu david harris message id aa ll mit edu to wingert vnet ibm com subject re level shuttle software work bret if you are familiar with the software work that received the level rating could you post a description of it and or some references i think many people would be interested to know just what the ibm team on that effort is doing differently from most other organizations projects that earned them that rating i am familiar with the project it is the onboard shuttle flight software project this software controls the space shuttle during all dynamic phases as well as on orbit it has ultra high reliability and extremely low error rates there have been several papers published on the subject and i ll collect some references there may be an article in the ibm systems journal late early there is no magic formula we did it with dedicated and disciplined folks who worked to put together a process that finds and removes errors and is corrected based on errors that escape we present a one day overview of our process periodically to interested folks the next one is may th in washington d c i can fax specifics to those who are interested bret wingert wingert vnet ibm com fax
