ER/Studio Data Architect vs. IBM Rational System Architect Designer

Data Architect is well suited at organizations of all sizes. It is never too early or unnecessary to enforce proper modelling and design standards on data solutions, and this tool will help that greatly by providing an industry leading data modelling tool, ability to import ETL mappings for data lineage, enforcing and managing naming conventions through the naming convention tool, and publishing of data dictionaries through the report publisher. I was successfully able to build models, provide traceability, and document source to target with lineage throughout for both the business (by providing business definitions in the descriptions), and technical teams (by documenting ETL instructions in text fields) along with field level mapping (by creating "Attachments" representing data sources, tables, and fields) providing easy search capabilities using business friendly terms

Incentivized

If you need a whole infrastructure and architect view, IBM Rational System Architect is the way to go. If you need a single diagram or your business process is young enough to support hard documenting, you are fine with an open source tool.

Incentivized

• ER/Studio has the ability to provide consistent field names and data types through domains, which are templates. This provides a way to have consistent naming of common fields, like CreatedBy and the data types for the fields. They also have the ability to change all the fields that use that domain to a different data type.
• ER/Studio provides the ability to create custom macros. These macros can be used to apply everything from standard fields based on domains to naming all constraints and indexes. I've also used a macro that comes with ER/Studio to spell check field and table names.
• My favorite feature is the ability to compare your data model to databases for deployments of changes, and to other data models.

Incentivized

• MS Office exporting
• UML modeling
• Transformation to code
• A reverse transformation from code
• Integrates with other IBM products

Incentivized

• ER\Studio licensing can be cumbersome and upgrading from one version to another usually takes several phone calls and emails to the licensing group to get the update installed and running.
• The repository can be slow when the model count gets larger. By large I mean 20 to 30 models.
• A nice feature that I would like to see is table comments be displayed on the model along with the attributes. Currently you have to choose between the two.

Incentivized

• Always has a price. And IBM is not cheap
• Sequence diagrams can get messy (still has a good UI)
• Only support few databases as backend repositories like SQL Server and Oracle

Incentivized

I can call or email support and both get quick turn around. The only issue is they are on the west coast (US) and have a west coast work schedule and I'm on the East coast.

Incentivized

ER/Studio is the most mature, reach in features and quality and therefore useful. Unfortunately, it lacks compatibility with AWS Redshift.

Incentivized

If you have a budget or the need for a complex modeler or need diagram transformation to code or vice-versa, IBM Rational System Architect is the way to go. If you need few diagrams or don't need the complexity or don't have a budget, Bizagi or Star UML get the things done.

Incentivized

• ER/Studio has had a positive impact on my project as we can develop the data model and have a clear understanding of business needs before we continue with the development phase.

Incentivized

• Clients like good modeling. A good diagram reduce costs in incidents and doubts of bad interpretations
• Reduce costs of recognition of old software.

Incentivized