Technical Duration: Need to specify the time a continuous learning object takes when played at intended speed in this data element.

It has to be in a specific format P[yY][mM][dD][T[hH][nM][s[.s]S]] where:
y = number of years
(integer, > 0, not restricted)
m = number of months
(integer, > 0, not restricted, e.g., > 12 is acceptable)
d = number of days
(integer, > 0, not restricted, e.g., > 31 is acceptable)
h = number of hours
(integer, > 0, not restricted, e.g., > 23 is acceptable)
n = number of minutes
(integer, > 0, not restricted, e.g., > 59 is acceptable)
s = number of seconds or fraction of seconds
(integer, > 0, not restricted, e.g., > 59 is acceptable)

The character literal designators "P", "Y", "M", "D", "T", "H", "M", "S" must
appear if the corresponding nonzero value is present.

Example: "PT1H30M" - 1 hour 30 minutes , "PT2H45M45S" - 2 hours 45 minutes 45 seconds etc.

This data element is especially useful for sounds,movies or animations etc.