The SIG Interoperability recently split the document into two in order to make it easier to read.
If you are looking for the terminology used by various CI/CD tools, please consult the tools terminology document which is located next to this document.
If you are looking for the terminology used for common pipeline stages and steps, please consult the pipelines terminology document which is located next to this document.
Please note that this document is kept for historical reasons and to point people who find this document via internet search to the right set of documents.