starting vocab

ref  #8

begin/vocab.md

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 csl: ../assets/csl/apa-7e.csl
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-# Vocabulary for beginning users {#sec-begin-vocab}
+# Vocabulary {#sec-begin-vocab}
 
 **Chapter Leads**: Thomas Wilson
 
+## General {#sec-begin-vocab-general}
+
+These general terms for beginners reading Chapters [-@sec-begin-support] through [-@sec-begin-security].
+
+### Project {#sec-begin-vocab-general-project}
+
+A REDCap _project_ is a self-contained ...
+
+### Server {#sec-begin-vocab-general-server}
+
+A REDCap _server_ hosts a collection of [project](vocab.md#sec-begin-vocab-general-project)s.
+Identifying the correct server is the first step to navigating
+to your desired project.
+
+At OU, the two production servers are
+<https://bbmc.ouhsc.edu> and
+<https://redcap.ouhsc.edu>.
+
+The first is the newer and larger instance,
+while the second one
+(sometimes called the "CoPH server")
+is being phased out and no longer accepting new projects.
+
+Beginning users will rarely encounter OU's "development" server, which is <https://redcap-dev-2.ouhsc.edu>.
+
+### Record {#sec-begin-vocab-general-record}
+
+... distinguish w/ [event](vocab.md#sec-begin-vocab-general-event) and [participant](vocab.md#sec-begin-vocab-general-participant) ...
+
+### Participant {#sec-begin-vocab-general-participant}
+
+A _participant_ is sometimes synonymous with [record](vocab.md#sec-begin-vocab-general-record),
+but not always...
+
+### Instrument/Form {#sec-begin-vocab-general-instrument}
+
+The terms _instrument_ and _form_ are used interchangeably in REDCap...
+
+### Event {#sec-begin-vocab-general-event}
+
+A REDCap _event_ is a nested inside a [record](vocab.md#sec-begin-vocab-general-record),
+typically to facilitate longitudinal data collection within the same @sec-begin-vocab-general-record
+
+
 ::: {.callout-note appearance="simple"}
 
 ## Additional Chapter Details