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IBM Rational System Architect vs IDERA ER/Studio comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Nov 3, 2024

Review summaries and opinions

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Categories and Ranking

IBM Rational System Architect
Ranking in Enterprise Architecture Management
18th
Average Rating
7.4
Number of Reviews
5
Ranking in other categories
No ranking in other categories
IDERA ER/Studio
Ranking in Enterprise Architecture Management
7th
Average Rating
8.4
Reviews Sentiment
6.2
Number of Reviews
39
Ranking in other categories
Database Development and Management (8th)
 

Mindshare comparison

As of March 2026, in the Enterprise Architecture Management category, the mindshare of IBM Rational System Architect is 2.2%, up from 1.7% compared to the previous year. The mindshare of IDERA ER/Studio is 3.1%, down from 4.2% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Architecture Management Mindshare Distribution
ProductMindshare (%)
IDERA ER/Studio3.1%
IBM Rational System Architect2.2%
Other94.7%
Enterprise Architecture Management
 

Featured Reviews

GM
IT/Business Architect at a financial services firm with 51-200 employees
Lots of valuable features, especially the metamodel customization
In terms of what could be improved, we did not take the whole package with all the modules, and I think that the integration with other platforms like Office could be better. The reverse engineering of the database is already there, but in the next release I would like to see some pilot supplied with the solution in order to address any database.
reviewer2796111 - PeerSpot reviewer
Data Architect at a financial services firm with 10,001+ employees
Improved data modeling has reduced system footprint and strengthened finance workflows
I assess the benefits of IDERA ER_Studio's metadata management for my organization as not as good as Erwin's. Erwin's metadata management is better in how it handles data. There is a lot more user involvement in managing the metadata, primarily because in IDERA ER_Studio, the logical and physical models are separately defined in the same file, so you have to map them every single time. In Erwin, it has a unified structure, so if you make a change in the logical model, it automatically shows up in the physical model. You have to go through a couple of steps in the IDERA model to make sure everything has moved over. While that is not that inconvenient when you are actually doing development, as far as metadata management, that is prone to things getting dropped and missed. The collaboration tools in IDERA ER_Studio are adequate, but I think with Erwin, there is more of an opportunity for things to crash. Changes can be merged in IDERA more fluidly; however, the locking and sharing are a little bit more defined in Erwin. I think the learning curve for Erwin might be easier than IDERA ER_Studio, especially with connecting to different models and systems.

Quotes from Members

We asked business professionals to review the solutions they use. Here are some excerpts of what they said:
 

Pros

"We have seen ROI with this solution over the years that we have used it."
"The user interface is good. It's both clear and comprehensible. It's easy to work with."
"The System Architect Product has greatly assisted the corporate strategic planning process in two areas: the simulation of scenarios for Enterprise Transformation Projects and providing a global view of Enterprise Capabilities and Functional Gaps."
"The solution is pretty stable."
"There are a lot of features I find valuable, but I think that the metamodel customization is one of the best features that the solution offers."
"I like the fact that it has a scripting language that allows you to automate and write your own scripts."
"Data lineage tracking: It allows us to identify upstream and downstream systems using data."
"We are able to document the data lineage and data flows of our data from one system to another."
"The data modeling and reverse engineering features are most important to us."
"The most valuable features are... those that enable me to represent the database to the development community and the business users."
"IDERA ER_Studio does a lot more and performs model comparison much better than Erwin."
"Valuable features include the ability to visually represent what the database tables are going to look like and their relationships. Also, the ability to document the definitions of the tables and the columns that are in a table so that we can communicate what the data is and how it should be used."
"When validating the model, the ability to provide sub-models to developers, and generate a physical model from the logical, makes it easier to review a logical model with stakeholders."
 

Cons

"There needs to be more information at the outset about how to use the solution and how to deploy it. The deployment process needs improvement."
"The reverse engineering of the database is already there, but in the next release I would like to see some pilot supplied with the solution in order to address any database."
"This solution can be more user-friendly and easier to use, with better dashboards."
"Some aspects of the user interface lack a common navigational or functional framework."
"The solution needs to better integrate with other products, like Microsoft."
"Tech support is a sticking point with me. I am really disappointed in the tech support. We pay for the Platinum level. It takes hours to get a response."
"The screens are a bit outdated. They could use a new look and feel."
"The number of options can be overwhelming at times. That is not necessarily a bad thing but for a newbie, it can be daunting."
"This solution needs more precise documentation."
"I assess the benefits of IDERA ER_Studio's metadata management for my organization as not as good as Erwin's."
"when there are some links to the external databases, if this database is not structured it is not uploaded. It gives me errors and I cannot see the view that was created on this structure and I cannot change those views, even manually. It skips the views. I have to ignore those views. I cannot re-upload them because it gives me an error."
"We would always like to see Repository performance improve, checking in and checking out."
"This version does not properly generate SQL Server computed columns; future versions do this."
 

Pricing and Cost Advice

Information not available
"The solution’s pricing is high."
"I use the product's trial version."
"The setup cost may have been around $1500 to $2000."
"The process of licensing could be much simpler, from our experience."
"I'm a firm believer that all software is overpriced these days but, comparatively speaking, I think ER/Studio is worth the money."
"Pricing is expensive and on the higher-end."
"It is priced fairly. It's around the same as erwin and other competitors' costs."
"The price of this product is okay."
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Top Industries

By visitors reading reviews
Financial Services Firm
11%
Government
11%
Manufacturing Company
9%
Comms Service Provider
8%
Energy/Utilities Company
13%
Financial Services Firm
12%
Manufacturing Company
8%
Computer Software Company
7%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise12
Large Enterprise25
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for IDERA ER Studio?
In terms of pricing, ER/Studio is slightly more expensive compared to Erwin, by about five to ten percent.
What is your primary use case for IDERA ER Studio?
I work in the finance industry, and the use cases for this product are very similar to what I mentioned previously when I discussed being in industrial management. It is simply a different product.
What advice do you have for others considering IDERA ER Studio?
I have not used IDERA ER_Studio's impact analysis tools, so I really could not judge that regarding mitigating database risks for security. I am not on the end as far as the pricing, as this is wha...
 

Also Known As

Rational System Architect
IDERA ER Studio, ER/Studio, ER/Studio Enterprise Team Edition
 

Overview

 

Sample Customers

Wuxi Lake Cloud, Nationwide, ETI, IDS Scheer
Newmont Mining, Entrust, Accolade, TalkTalk, Catalina, Protective Life, NTT Data, dir systèmes, Microsoft; American Express, Astellas Pharma, AstraZeneca, Coriant, Fedex, GlaxoSmithKline, PepsiCo, Prudential, Wells Fargo
Find out what your peers are saying about IBM Rational System Architect vs. IDERA ER/Studio and other solutions. Updated: March 2026.
884,873 professionals have used our research since 2012.