erwin Data Modeler Editions

The Standard Edition provides all the data modeling features used by Data Architects, Data Administrators, and Application Administrators, but does not include any workgroup modeling capabilities. When you enable data movement or dimensional modeling features, it provides a tool for assisting Data Administrators and Capacity Managers design data warehouses. Partners can use the API to create add-on solutions.

The Workgroup Edition provides all the data modeling features used by Data Architects and also includes workgroup modeling capabilities used by Database Administrators, Application Administrators, and Application Owners. It provides conflict resolution, versioning, security and standardization for multi-user modeling. Workgroup modeling operates in a client/server environment so processing is shared between the user client workstation and the server where the models are stored. Users access the stored models through a client, such as erwin DM. Models are held in a platform and network independent database or mart that resides on a central server, using Microsoft SQL Server, Oracle, or PostgreSQL as the host database.

The key features of the Workgroup Edition are:

Web-based administrator (erwin Mart Portal)

Helps the administrator administer the Mart. The administrator creates the Mart database, installs and configures erwin Mart Portal before users can connect to the Mart. erwin Mart Portal is hosted on a web server and is accessed through an Internet browser.

Model change impact analysis

Provides a change summary showing the impact of changes and the history of the affected model objects, allowing you to select which changes to apply to the model repository.

Version management

Lets Data Architects store, access and analyze the history of a model and the changes made to it, lock down specific versions, run difference reports between versions, and seamlessly roll back models to previous states as required.

Concurrent model access with optional model locking

Allows multiple users to concurrently work on a given model without compromising the integration and integrity of their parallel efforts.

The administrator installs the program and initializes the database on the DBMS server. The administrator also has the responsibility of setting up the library structure in which models are organized, and assigning security profiles to users. Administration overhead is relatively low and proportional to the number and activity level of the users. After a model is saved to the database, control of who can work on the model and how changes are saved to the model is handled by security, making it possible for workgroups to work on large models without confusion. The Workgroup Edition supports many security and administrative features related to its multiuser capabilities and the client/server environment in which it operates. For this reason, routine management is usually performed by a dedicated administrator. Administrators can find detailed information regarding their tasks and responsibilities in the erwin DM Workgroup Edition Administration Guide.

You can also use the Navigator Edition as a client. Read-only access is permitted to data models, so your workgroup edition can use this client to share information with others without the risk that unauthorized changes might be saved to the mart.

The Navigator Edition provides a cost-effective way to provide read-only access to models built with erwin Data Modeler for viewing and analysis. This edition does not permit you to make any changes to models.

The key features of the Navigator Edition are:

Read-only access

Read-only access is provided to models created by erwin DM and it can also be used as a Workgroup Edition client for viewing a data model stored in a mart. Use the Navigator Edition to easily share model information without the risk of unauthorized changes to a model.

Navigation and Viewing

Provides those who need to view models, but not update them, full navigation and viewing of data models.

Reporting and Publication

Offers reporting and printing capabilities that generate in a variety of formats, including HTML and PDF.

The Lite Edition is a part of TOAD for Oracle bundle. With this edition, database developers and administrators, programmers, and data analysts can create and manage Oracle-based data models. For more information about erwin DM Lite Edition, refer to the Working with erwin Data Modeler Lite Edition topic.

Only Oracle database and versions 18c, 19c, and 21c are compatible with the erwin DM Lite Edition.

The key features of the Lite Edition are:

Reverse Engineering Models

You can reverse engineer a data model from an Oracle database or script using the Reverse Engineering feature. During reverse engineering, you can select database objects that you want to include in models.

Forward Engineering Models

You can generate database schema or alter script using the Forward Engineering feature. This feature supports schema generation for the objects in the Oracle database that you can use to forward engineer them to the database.

Creating and Accessing Models

You can create new Oracle models and open existing Oracle models for data modeling.