Sorry just search the maillist archive and got the answer.
But my searches didn't get anything about the relatedEventSequence,
which is optional in the data dictionary but mandatory in the schema,
both v1 and v1.1.
On Fri, 2006-02-03 at 16:15, Zhiwu Xie wrote:
> relatedEventIdentification is mandatory in the data dictionary but
> optional in the schema. Is it a typo in the data dictionary?
> Zhiwu Xie
> Graduate Research Assistant
> Research Library
> Los Alamos National Lab