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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
19th
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
6th
Average Rating
8.4
Reviews Sentiment
6.9
Number of Reviews
38
Ranking in other categories
Database Development and Management (8th)
 

Mindshare comparison

As of November 2025, in the Enterprise Architecture Management category, the mindshare of IBM Rational System Architect is 2.1%, up from 1.9% compared to the previous year. The mindshare of IDERA ER/Studio is 3.7%, down from 4.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Architecture Management Market Share Distribution
ProductMarket Share (%)
IDERA ER/Studio3.7%
IBM Rational System Architect2.1%
Other94.2%
Enterprise Architecture Management
 

Featured Reviews

GM
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.
Aaron Cutshall - PeerSpot reviewer
Used for data modeling and has a scripting language to write your own scripts
The solution has streamlined our data modeling processes quite a bit. It's a central focus in our data modeling and data cataloging efforts. The tool's reverse engineering capability to bring in existing database structures and create models from them has benefitted our data architecture needs. With the tool's data dictionary capability, we're able to maintain consistency in our models, name use, and actual data domains. The solution's reverse engineering helps with understanding legacy databases. In fact, I've been asked to reverse-engineer several more legacy databases so that we can have them modeled and cataloged. The solution is deployed on the cloud server, but it’s only within our network. The solution has a lot of capabilities. I like the fact that it has a scripting language that allows you to automate and write your own scripts. I think that's been a big bonus for us. I highly recommend the solution because of its capability for logical models, where you can put your business definitions and logic. While less expensive, some other tools can't do that. Overall, I rate the solution an eight out of ten.

Quotes from Members

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

Pros

"The solution is pretty stable."
"The user interface is good. It's both clear and comprehensible. It's easy to work with."
"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."
"We have seen ROI with this solution over the years that we have used it."
"One of the valuable features is inheritance when joining tables. When setting up RI and domains and rules, ER/Studio does a lot of the grunt, boilerplate code that would otherwise have to be hand-coded."
"The data modeling module is important to me because I am a database developer and designer... It's very fast, reliable, up-to-date, so easy to use, smooth."
"It's much easier to develop the database structure and change it on the fly, rather than doing it manually in SQL Server itself. That saves time."
"This application does a lot of things, as do competitor products, but the main reason to go with this product was the ability to create many automations, where we can improve our work and our process."
"The most valuable feature of the solution is generating DDL (data definition language)."
"ER/Studio is excellent for large teams; it scales well to teams of over one hundred plus people."
"It was a very good tool at the time since it was complete."
"Modeling with Data Architect: We can quickly reverse-engineer a database from an existing database or create a model from scratch."
 

Cons

"The solution needs to better integrate with other products, like Microsoft."
"This solution can be more user-friendly and easier to use, with better dashboards."
"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."
"We did have a big issue when we upgraded to the 2016 version. The Team Server portion never did quite install correctly, and/or the database was corrupted, and we never figured it out."
"The solution is not so strong at creating modeling views and database views."
"The solution could be sped up, as it is a little slow (e.g., when it's doing its database compare)."
"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 model diagram because very clumsy when you save it on the team server and the models are very big."
"The solution's reporting could be improved because the report writer is terrible."
"Whenever there is a new version, there are a lot of release notes on the technical side of it, but I would like to be told why are we doing the upgrade... What I would like to really see is how this benefits us from the business point of view. What are the real benefits that the user gets? I want some kind of way white paper. The release notes describe the technical enhancements but, from the layman's point of view, if someone asks me what are the business benefits of this upgrade, I don't have any documentation to explain it to the business."
"It isn't easy to compare the thousands of tables in the model against the database. The tool should improve the synchronization within the large organization"
 

Pricing and Cost Advice

Information not available
"I'm a firm believer that all software is overpriced these days but, comparatively speaking, I think ER/Studio is worth the money."
"I feel the product's pricing is a good value."
"The price of this product is okay."
"As an individual user, the renewal is a little costly."
"Pricing is expensive and on the higher-end."
"On a scale of one to ten, where one is bad and ten is good, I would rate the licensing cost as a seven or eight. It's not too expensive for us."
"It is priced fairly. It's around the same as erwin and other competitors' costs."
"The setup cost may have been around $1500 to $2000."
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Top Industries

By visitors reading reviews
Manufacturing Company
18%
Financial Services Firm
13%
Government
9%
Computer Software Company
8%
Financial Services Firm
13%
Energy/Utilities Company
12%
Computer Software Company
9%
Government
8%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business4
Midsize Enterprise11
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 have been working with data modeling tools. Personally, I have been working with Erwin for many years now. ER/Studio is something I am currently trying to evaluate for acquiring it for our organi...
What advice do you have for others considering IDERA ER Studio?
I would strongly recommend ER/Studio for large teams. Erwin is a very stable product, but for smaller teams, it's okay. If I had to rate ER/Studio, I would give it nine out of ten because the absen...
 

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: November 2025.
872,869 professionals have used our research since 2012.