Instead of splitting your Issue per type of Work, you can decide to qualify in your issue each of your work.
To allow that, Minyaa Time extends Worklogs attritutes with the Worklog Types.
Timesheet Management provides an approval workflow.
But, to allow to manage Timesheet Status with a smaller granularity, it has been decided to manage status at Worklog level.
To allow that, Minyaa Time extends Worklogs attributes with the Worklog Statuses.
Always for Timesheet Management, a link is managed between the Timesheet and the Worklog.
A foregin key (Timesheet Id.) is stored in Worklog.
Worklog Fields are a way to extend the Worklog details.