off-the-shelf Posted on 2018-09-10 by Jacco Drabbe This term is defined in ECSS-S-ST-00-01C as procured from the market, even if not developed for space applicationRelated Articles: Glossary: COTSGlossary: COTS, OTS, MOTS softwareGlossary: COTSGlossary: MOTSGlossary: OTS