FAQs

Here’s the instructions for installing Astah UML.
– The screenshots are Astah Professional’s. However, the appearance and process are the complete same except the product name.
– If you are installing Astah on Linux, please read this page instead.

1. Download Astah Installer from download page
2. Once you complete downloading the installer, double-click it.
   
3. The installer launches, click [Continue].
   
4. Astah’s EULA will appear. Please read it through and click [Continue].
   
5. It will show you where Astah will be installed. If the default destination is okay, click [install]. If you’d like to change the location, click [Change Install Location] and specify.
   
6. The installation starts. Wait until it completes.
   
7. Once the installation completes successfully, you will get this following message.
   
8. Now Astah application icon should appear in the installed directory. Double-click it to launch Astah.

Yes, use the command below.

---

e.g: Installing Astah UML 9.2

astah-uml-9_2_0-0248cd-jre-64bit-setup.exe /verysilent

If you would like to install Astah to a specific directory, use /DIR option.

astah-uml-9_2_0-0248cd-jre-64bit-setup.exe /verysilent /DIR=”the destination of installataion folder

Please refer to Astah UML System Requirement page.

1. Make a back up files of the following on your curremt machine if you have:
   • Plugins: Userhome/.astah/uml/plugins
   • User templates:Userhome/.astah/uml/template
   • Customized system properties: Userhome/.astah/uml/JudeU.properties
   • Customized UseCase Description template: Userhome/.astah/uml/UCDescriptionProp.properties
2. Uninstall Astah completely from the current machine
3. Download and install Astah on new machine
4. Restore the back up data to the new machine.
5. Have your license file reissued and set from [Help] – [License] – [Set License Key].

The performance level of Astah depends on the RAM capacity of your machine.
Try the following methods if you have not tried them yet:

1. Use the latest Java environment

Refer to the How to use a specific version of the JavaVM and use the latest version of Java.

2. Hide title bar (Mac only)

If you are on Mac, hiding title bar seems effective in some environments.
Go to [Tools] – [System Properties] – [Diagram Editor] and take the tick off for [Hide title bar of the Diagram Editor (Restarting Astah is required)] and restart Astah.

3. Change Look and Feel (Mac only)

If you are on Mac, changing the look and feel may work.
Go to [View] – [Look & Feel] and choose one except [Mac OS X].

4. Turn off the mouse cursor tracing option

In some environments, having this option on will make rendering slower.

5. Tune some garbage collection settings

When the value of INITIAL_HEAP_SIZE is set to 16m, the garbage collection does not work fully unless your computer uses more memory than 16MB.

To tune up, please change the -Xmx size by following the instructions here:

If you are on Windows
Open astah-uml.l4j.ini file which is located in Astah Installation folder with text editor and change the heap size
(e.g) -Xmx2048m

If you are on Mac and use Astah v8.5 and later
Launch Terminal and execute the command below (e.g: setting the heap size up to 2048m):

defaults write com.change-vision.astah.uml /com/change-vision/astah/uml/ -dict-add JVMOptions/ ‘{ “Xmx” = “-Xmx2048m” }’

If you are on Mac and use Astah v8.4 and earlier
1. Go to Application folder and right-click on “astah uml.app” and select [Show Package Contents]
2. Open [Info.plist] file you can find under [Contents] package
3. In this file, will find the following lines. Change the -Xmx value.
-Xms16m
-Xmx768m

If you are on Linux
Open /usr/lib/astah_uml/astah-uml file with a text editor and modify the JAVA_OPTS=”-Xms16m -Xmx384m” line.

6. Use the latest version of Astah

Download the latest version from Download page.

7. Hide Map View

Please follow the instructions here.

8. Hide Alias View

Please follow the instructions here.

9. Disable Content Assist and Suggest Feature

Disabling the Content Assist (A dotted green line that appears on the diagram when you try to move and align objects with others) and Suggest Feature could increase the performance a little. To close, go to [Tools] – [System Properties] – [Diagram Editor] and take the tick off two options.

Astah UML supports both English and Japanese languages. It automatically launches in English if your PC’s language and regional settings are not set to Japanese. Here’s how you can switch the language to Japanese:

For Windows Users:

1. Close Astah UML if it is running.
2. Open the astah-uml.l4j.ini file in the Astah UML Installation folder with a text editor.
3. Add the following, then save the file.
   -Duser.language=ja
   -Duser.country=JP
4. Launch Astah UML. It should now start in Japanese.

 

For Mac users:

1. Close Astah UML if it is running
2. Open Terminal and execute the following command.
   %defaults write com.change-vision.astah.uml /com/change-vision/astah/uml/ \ -dict-add JVMOptions/ '{ "language" = "-Duser.language=ja"; "country" = "-Duser.country=JP"; }'
3. Start Astah UML, and it will be in Japanese.

You can uninstall Astah by following the step below if you decided not to use Astah after your evaluation.

Windows

1. In the search box on the taskbar, type Control Panel and select it from the results.
2. Select Programs > Programs and Features.
   
3. Press and hold (or right-click) on the Astah UML and select Uninstall or Uninstall/Change. Then follow the directions on the screen on Windows.
   

 

Mac

1. Locate the Astah UML in the Finder. Mostly you can find it in your Applications folder
2. Drag the app to the Trash, or select the app and choose [File] – [Move to Trash].
3. If you’re asked for a user name and password, enter the name and password of an administrator account on your Mac.
4. To delete the Astah UML completely from Mac, empty your trash.
   

 

Linux – Ubuntu

Please follow the instruction here.

Linux – Debian

Please follow the instruction here.