I'd say Andy graduated degree would be a specific point in time, but Andy studied degree would be a duration. A reporting tool could calculate the end point from start point plus duration if appropriate.

Andrew

Andy Johnson <notifications@github.com> wrote:

>
>  ###### Requirements
>  * A timestamp MUST be formatted according to [ISO 8601](https://en.wikipedia.org/wiki/ISO_8601#Combined_date_and_time_representations).
>  * A timestamp SHOULD include the timezone.
> +* A timestamp SHOULD represent the start point of the experience if the experience happened over a peroid of time.

I'm just not sure we can commit to the start point of a period of a statement.  I think so much depends on the activity and verb.  A statement like "Andy earned his bachelor's degree" clearly spans an amount of time, but I'd want to know when I finished whereas a statement such as "Andy ate sushi at Takara" would probably gravitate to answer the question "what time did you get there?".  I think it is too open to put a recommendation on.

---
Reply to this email directly or view it on GitHub:
https://github.com/adlnet/xAPI-Spec/pull/375/files#r6060991