Astah UML FAQs

Licensing

I lost my license file. How can I reissue it?
1. Log into CV Members site and click [License Management].
2. Choose [Download this license key] and click [Next].
How do I register my paid license?
Please refer to our License Guide.
How do I renew my license?
Please refer to our License Guide.
If you’d like a quote, please send us a quote request for your license renewal from this form.
How can I see my license information?
1. Log into CV Members site and click [License Management]
2. Your license information appears as shown below. However, Free student license or any licenses that have been expire will appear.
How can I transfer my license to someone else in my company?
1. Log into CV Members site and click [License Management].
2. Choose [Apply for license transfer] and click [Next].
How can I cancel my subscription?

There are two ways to cancel your ongoing subscription.

Option1:
You will receive an email from our online store – mailer@fastspring.com 10 days before your subscription license expires. To cancel, access the link in the email and press [Cancel Subscription].

Option2:
Please submit a cancellation request from this form.

Pricing and Discounts

Are there any discounts for academic institutions?

Yes. Academic pricing is available to qualified academic institutions. See the Academic Pricing page.
Does Astah offer reseller discounts?

Yes, please send us a quote request through this form.

Setup and Uninstall

How can I install Astah?
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.
How can I install Astah in silent mode?

Yes, use the command below.

e.g: Installing Astah UML 9.0

astah-uml-9_0_0-1778f1-jre-64bit-setup.exe /verysilent

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

astah-uml-9_0_0-1778f1-jre-64bit-setup.exe /verysilent /DIR=”the destination of installataion folder
Where can I see the system requirements?

Please refer to Astah UML System Requirement page.
How can I change a Machine to use Astah?
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].
How can I increase the performance of Astah?

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.
How can I uninstall Astah UML?
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.

Functionalities

Does Astah Support Object Diagrams?

Yes. Please create Object diagrams using the Class diagram.
Please use [Instance Specifications] and [Link] are on the Tool Bar of Class Diagrams.
I copied objects but when I edit one, the change applies to the another.

In that case, Clone the model instead of copying. A cloned model will be an independent model.
My Astah file does not open.

Astah project files (.asta) are upward compatible. If project files have been edited by newer version, they cannot be opened in older version of Astah. Read about model versions.

If you cannot open project files using appropriate version of Astah, please change the stack size in the [Tools] – [System Properties] – [File].

Troubleshooting

My Astah file does not open.

Astah project files (.asta) are upward compatible. If project files have been edited by newer version, they cannot be opened in older version of Astah. Read about model versions.

If you cannot open project files using appropriate version of Astah, please change the stack size in the [Tools] – [System Properties] – [File].
I copied objects but when I edit one, the change applies to the another.

In that case, Clone the model instead of copying. A cloned model will be an independent model.
I was asked to correct invalid models. What are the invliad models and how can I correct them?

Invalid models are broken data that were produced due to the software’s bug.
If you were asked to correct invalid models – that means your log file indicates that your project file may contain invalid models.

Go to [Tools] – [Correct Model] – [Correct Invalid Models] and continue by following the messages that would appear.
How can I use a specific version of Java?
If you have a preferred Java to use Astah, you can use it by following the instruction below. However technical support is not provided if you are using Astah on un-supported System Requirements.

When you use un-supported Java to run Astah, you will get the alert when launching Astah. To ignore this alert,, add-nojvchk option at launch.

Windows
1. Have your preferred JDK installed on your PC
2. Rename the “jre” folder in the Astah install folder to something else
3. Astah detects the latest Java (Should be the Java you installed at step 1) in your PC and then automatically uses it to run.
Mac
1. Copy a “jre” folder in the JDK installation folder you prefer to use
2. Right-click Astah App and select [Show Package Contents] from its pop-up menu
3. Paste the “jre” folder under Contents/Plugins/JDK/Contents/Home.
Linux

Please refer to “How to run Astah on Linux“.
Where are the Astah log files?
When you are asked to send log files along with your bug report, please send the 2 log files that are stored in your home directory:
- astah_uml.log
- astah.log
You can find them in the USER_HOME\.astah\uml directory.

Additionally, if your bug may be related to the plug-ins, please send us the log file accordingly which you can also find in the USER_HOME\.astah\uml directory.
- C++ Reverse Plugin: cplusreverse.log
- C# Reverse Plugin: csharpreverse.log
- Easy Code Reverse Plugin: easycodereverse.log
- State Transition Table: statematrix.log
- State Transition Path: statepath.log