Dear Waciru,
The precise answer perhaps depends a little on the meaning of yr "capture".
Post #2 is also used quite frequently after a confirmatory group walk-through during a given process.
IMEX, a fair number of people also do it at least 2 times, the 2nd on the day before the audit. 
This is extract from Codex Hygiene 2009 (HACCP segment) -
4. Construct flow diagram
The flow diagram should be constructed by the HACCP team (see also “Assemble
HACCP team” above). The flow diagram should cover all steps in the operation for
a specific product. The same flow diagram may be used for a number of products
that are manufactured using similar processing steps. When applying HACCP to a
given operation, consideration should be given to steps preceding and following the
specified operation.
5. On-site confirmation of flow diagram
Steps must be taken to confirm the processing operation against the flow diagram
during all stages and hours of operation and amend the flow diagram where
appropriate. The confirmation of the flow diagram should be performed by a person
or persons with sufficient knowledge of the processing operation.
Not to detract from Bill's nicely concise summary of course. 
Rgds / Charles.C