Capture generally refers to the activity of creating digital surrogates of existing cultural artefacts, or expressing existing artifacts in a digital representation (digitization). This could be a manual process (as in Transcribing) or an automated procedure (as in Imaging or DataRecognition). Such capture precedes Enrichment and Analysis, at least from a systematic point of view, if not in practice.
The "1" is not part of the term, but used to indicate the term's order in the research process.