Working on Mart › Connect to Mart › Mart Architecture

Mart Architecture

In the previous versions, CA ERwin Data Modeler connected to the Mart server directly. Now, CA ERwin Data Modeler connects to the Mart server through a web server. The following diagram shows the new architecture:

The Mart comprises the following components:

Database

Stores the user data for the Workgroup Edition. If you are installing the Mart for the first time, use a new database. Do not use an existing database that was created for a r7.3 through r8.2.7 Mart. If you are upgrading the Mart from r9.0 to r9.1, use the r9.0 Mart database.

Install one of the following databases for the Mart database:

• SQL Server 2005, 2008, or 2012
• Oracle 10g or 11g
• Sybase 15.x

Applications

Includes a web-based component named CA ERwin Mart Administrator that helps you manage the Mart through a web console.

Web server

Hosts CA ERwin Mart Administrator. You can use a web server of your choice. If you have not installed a web server, use the ERwin Mart Server option and install Tomcat.

If you are using the Workgroup Edition, install CA ERwin Data Modeler and install and configure CA ERwin Mart Administrator.

The new architecture has the following benefits:

• Separate logical and physical users: In the previous versions, Mart (or Model Manager) users required database level privileges to access Mart functionality. The Mart database administrators added or deleted users in the Mart database. This approach is changed now. The logical users are separated from physical users, so Mart Administrators can create Mart users without creating the corresponding database users.
• Authentication through Active Directory services: Earlier, if you wanted to provide access to a user group, you added each user individually. Now, because of the new architecture, you can use the Active Directory services and can provide access to the group. Anyone who is part of the group gets access.
• Mart administration outside CA ERwin Data Modeler: In the previous versions, Mart Administrators used CA ERwin Data Modeler for administrative activities such as permissions management. This required non-modelers to know how to use CA ERwin Data Modeler. In the new architecture, the administration component (CA ERwin Web Admin) is built on a separate layer on top of CA ERwin Data Modeler and is hosted on a Web server. Mart Administrators can access CA ERwin Web Admin from any computer and can perform administrative activities through a web console.

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