$|$ User $|$ System $|$ Manager $|$

$|----------------|-----------------|-----------------|$

$|$ Start $|||$

$|$ Submit leave request $|||$

$|----------------|$ Log and send leave request $||$

$|||$ Receive leave request $|$

$|||-----------------|$

$|||$ Review leave request $|$

$|||-----------------|$

$|||[$Approved$?]|$

$|||||$

$|||$ Yes $|$

$||$ Notify user of approval $||$

$||$ Update team holiday schedule $||$

$|||||$

$|----------------|$ View leave outcome $|$ No $|$

$|[$Denied$?]||||$

$||||$ No $|$

$|$ Yes $||$ Yes $|$

$|||$ Notify user of denial $|$

$|$ Resubmit with additional information $|||$

$|----------------|$ Log and send leave request $||$

$|||$ Receive leave request $|$

$|[$End Process$]|||$

$|$ View team holiday schedule $|||$

$|----------------|$ Update holiday usage $||$

$|$ End $||$ End $|$