[UML] How to Draw a Scheduler Service in Sequence Diagram

Problem
Assume I have a HeartBeatService and HeartbeatProducerService.
HeartBeatService will call HeartbeatProducerService every 5 seconds to check system is alive or not. 

How to show this kind of scheduler job in sequence diagram.


How-to
You can add a loop combined fragment in sequence diagram, it looks like:

[Astah] How to Change Font Size in Astah?

Problem
How to change font size in Astah?

How-to
Go to Tool => Project => Default Font, you can change font, font style and font size in this dialog.

PS. Font configuration only allow in Professional version, Community version is disallowed.

Cannot Import Java Source Code via Astah Pro

Problem
When I used Astah Pro to do import java code

But it show the error which complain encoding issues:


Solution
As we do import java code, we need to set the property of "Charset of imported files" to UTF-8.

Then we can import Java source code successfully.