ERD and UML for Eclipse...

http://amateras.sourceforge.jp/cgi-bin/fswiki_en/wiki.cgi?page=EclipseHTMLEditor

Amateras provides both UML (AmaterasUML) and ERD (AmaterasERD).

Both require installing GEF First.

Installing GEF: https://publib.boulder.ibm.com/infocenter/cchelp/v7r1m0/index.jsp?topic=/com.ibm.rational.clearcase.cc_ms_install.doc/topics/t_install_gef.htm

Installing Graphical Editing Framework (GEF)

Rational ClearCase Remote Client for Eclipse requires that GEF be installed in your Eclipse environment. If you do not have GEF, you must install it before installing the Rational ClearCase Remote Client for Eclipse.

Before you begin

About this task

If your environment already has GEF installed, you do not need to perform this task. To check if it is installed, start Eclipse and click Help > About Eclipse, then click the Feature Details button. If there is an entry with "Graphical Editing Framework" in the Feature Name field and "org.eclipse.gef" in the Feature ID field, then you have GEF installed in your Eclipse environment.

Note: You must be logged in as a local Administrator with sufficient privileges for updating your installation of Eclipse or the IBM Rational Software Delivery Platform.

Download the GEF Runtime feature that corresponds to your version of Eclipse from the Eclipse Web site (http://www.eclipse.org) and unzip it into your Eclipse directory, or follow these steps to install GEF with the Eclipse Update Manager:

Procedure

• Installing GEF with Eclipse 3.2.x and 3.3.x
  1. On the Eclipse main menu, click Help > Software Updates > Find and Install.
  2. On the Feature Updates page, select Search for new features to install and then click Next
  3. On the Update sites to visit page, select Callisto Discovery Site (for Eclipse 3.2) or Europa Discovery Site (for Eclipse 3.3) and expand the option to see a list of available features.
  4. Select Graphical Editing Framework from the Graphical Editors and Frameworks section of the Callisto Discovery Site for Eclipse 3.2 or Graphical Editing Framework from the Graphical Editors and Frameworks section of the Europa Discovery Site for Eclipse 3.3 and then click Next. (Note that you should choose a version of GEF that corresponds with the version of Eclipse that you are using.)
  5. On the Search Results page, select Graphical Editing Framework and then click Next.
  6. On the Feature License page, select I accept the terms in the license agreement... and then click Next. If you do not accept the terms, select Cancel to end the installation.
  7. On the Install Location page, select the Eclipse sites where you want to install the feature and then click Finish.
• Installing GEF with Eclipse 3.4
  1. On the Eclipse main menu, click Help > Software Updates.
  2. On the Available Software page, select Ganymede Update Site and expand the option to see a list of available features.
  3. Expand the Graphical Editors and Frameworks section and select the Graphical Editing Framework version that corresponds with the version of Eclipse that you are using.
  4. Click Install.
  5. On the Install page, click Next.
  6. On the Review Licenses page, read the license agreement carefully. If you accept the terms, select I accept the terms in the license agreement... and then click Finish. If you do not accept the terms, select Cancel to end the installation.
  7. When the installation completes, you are prompted to restart Eclipse or apply changes. Click Yes to restart Eclipse.
• Installing GEF with Eclipse 3.5
  1. On the Eclipse main menu, click Help > Install New Software.
  2. On the Available Software page, select Galileo - http://download.eclipse.org/releases/galileo from the Work with pull down menu, expand the Modeling option, select the Graphical Modeling Framework SDK option, and click Next.
  3. On the Install Details page, verify that Graphical Modeling Framework SDK appears as an item to be installed and click Next.
  4. On the Review Licenses page, read the license agreement carefully. If you accept the terms, select I accept the terms in the license agreements and then click Finish. If you do not accept the terms, select Cancel to end the installation.
  5. When the installation completes, you are prompted to restart Eclipse or apply changes. Click Yes to restart Eclipse.

Once this is done. Now its easy to install both UML (AmaterasUML) and ERD (AmaterasERD).

For AmaterasUML, just get the latest jars and put in ECLIPSE_HOME/plugins.

For AmaterasERD, the latest jar which is net.java.amateras.db_1.0.7.1.jar does not work for me, so I tried net.java.amateras.db_1.0.6.jar and it worked very well.

BTW, I have eclipse latest version which is 3.5 and the above jar also worked for Eclipse version 3.3.