IBM Rational System Architect vs erwin Data Modeler by Quest comparison

erwin by Quest and IBM are both solutions in the Enterprise Architecture Management category. erwin by Quest is ranked #3 with an average rating of 8.1, while IBM is ranked #19. erwin by Quest holds a 10.7% mindshare in AM, compared to IBM’s 1.7% mindshare. Additionally, 95% of erwin by Quest users are willing to recommend the solution, compared to 83% of IBM users who would recommend it.

erwin Data Modeler by Quest

Read 39 erwin Data Modeler by Quest reviews

4,005 Views
2,220 Comparison Views

95% willing to recommend

IBM Rational System Architect

Read 5 IBM Rational System Architect reviews

883 Views
479 Comparison Views

83% willing to recommend

erwin Data Modeler by Quest

IBM Rational System Architect

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Executive SummaryUpdated on Nov 3, 2024

IBM Rational System Architect and erwin Data Modeler by Quest are enterprise architecture and data modeling tools, respectively. erwin Data Modeler holds the advantage due to superior features and quick deployment, despite IBM's competitive pricing aspects.

Features: IBM Rational System Architect supports complex frameworks and integrates with multiple tools, providing a versatile modeling platform. erwin Data Modeler efficiently manages large data volumes and offers detailed visual representations. It excels in metadata management and collaboration, distinguishing it from IBM's capabilities.

Room for Improvement: IBM Rational System Architect could improve its deployment speed and user interface for better accessibility. erwin Data Modeler might enhance its pricing flexibility and expand support for diverse database systems. Both products can benefit from refining their integration capabilities with third-party tools

Ease of Deployment and Customer Service: IBM Rational System Architect requires a traditional deployment approach, often leading to longer setups. Despite this, it offers extensive documentation and dedicated customer service. erwin Data Modeler ensures a more intuitive deployment with responsive support, promoting user satisfaction efficiently.

Pricing and ROI: IBM Rational System Architect has a higher initial cost but brings long-term value through its comprehensive features. erwin Data Modeler's premium price is justified by its efficient capabilities and quick deployment, delivering significant ROI by reducing long-term operational expenses.

To learn more, read our detailed IBM Rational System Architect vs. erwin Data Modeler by Quest Report (Updated: April 2025).

Buyer's Guide

IBM Rational System Architect vs. erwin Data Modeler by Quest

April 2025

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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

erwin Data Modeler by Quest

Ranking in Enterprise Architecture Management

3rd

Average Rating

8.6

Reviews Sentiment

7.2

Number of Reviews

Ranking in other categories

Business Process Design (9th)

IBM Rational System Architect

Ranking in Enterprise Architecture Management

19th

Average Rating

7.4

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of May 2025, in the Enterprise Architecture Management category, the mindshare of erwin Data Modeler by Quest is 10.7%, up from 9.9% compared to the previous year. The mindshare of IBM Rational System Architect is 1.7%, down from 2.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Architecture Management

Featured Reviews

JorgeSanz

Data Governance Senior Advisor at Abu Dhabi National Oil Company

Streamline data modeling and automate network changes for increased efficiency

The initial setup depends on the tool if you are using the data model environment. Stopping the server could be complex and require strong expertise. If you have everything set up and configured, Erwin is straightforward. You can deploy it in a few hours. In our case, it took a couple of months to address internal conditions, assign machines, and set up everything for the services. I rate the initial setup a six out of ten, where one is difficult and ten is easy.

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it_user951237

Enterprise Architecture Specialist at a energy/utilities company with 10,001+ employees

Modeling is useful, but many features need improvement and technical support is lacking

I find that almost every feature related to the models requires improvement. For example, I would like to see more trendy models, the look and feel of the models can be improved. This solution can be more user-friendly and easier to use, with better dashboards. The impact analysis feature is in need of heavy improvement. The is a standalone product that lacks integration with a business process automation engine. I would like to see the workflow improved, where it integrates seamlessly with the artifacts.

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Quotes from Members

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

Pros

"It reduces monthly savings by hundreds of thousands of dollars. Think about a company like Costco and all of the points of sale systems in Costco, all of the systems, the applications, but if all the applications in Costco all had their own data model, trying to integrate those, upgrade them and manage their different versions of the same model throughout the store, is an absolute nightmare. It's phenomenally expensive. This helps reduce that cost significantly. I'm talking on the orders of hundreds of thousands of dollars."

"It allows us to create logical data models. We can represent a database model in business terms, which is very useful for us."

"The most valuable feature is the physical or visual representation of the database, showing the tables, the columns, the foreign keys, and the ability to generate DDL, so you can physically implement databases."

"It supports a wide variety of databases, including the latest ones. We have chosen to go for a cloud-based database, and it supports that, which is very useful."

"The modeling portion of the tool is the most valuable. There are some notes, naming standards, and other functions that we use as well. There's a whole boatload of functionality in this thing and we use maybe 10% of it. It seems to be pretty common that not all the functionality is fully utilized. But it's just got gobs and gobs of stuff that you can implement if you so choose to."

"We had some data integration projects, where we needed to integrate it for about 100 databases. Doing that manually is crazy; we can't do that. With erwin, it was much easier to identify which tables and columns could be used for the integration. That means a lot in terms of time and effort as well as my image to the customer, because they can see that we are providing value in a very short time."

"It provides flexibility with the code. You can change the code as you want. Basically, you can change SQL based on what's best for your project."

"Drag-and-drop data modeling and reverse engineering out of databases are the most valuable features of erwin Data Modeler by Quest."

More erwin Data Modeler by Quest pros

"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."

"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."

Cons

"We can only get licenses through partners."

"I find the UI very clunky and very difficult to use. If I add columns to a table the whole workflow could be so much easier. I get frustrated using it. I've tried other tools. I've tried to get off of erwin a few times. I always come back to it because every tool has its own set of problems, and it seems like if I have to pick my poison, I stay with erwin. But so many things that are clunky with it."

"The report generation has room for improvement. I think it was version 8 where you had to use Crystal Reports, and it was so painful that the company I was with just stayed on version 7 until version 9 came out and they restored the data browser. That's better than it was, but it's still a little cumbersome. For example, you run it in erwin, then export it out to Excel, and then you have to do a lot of cosmetic modification. If you discover that you missed a column, then you would have to rerun the whole thing. Sometimes what you would do is just go ahead and fix it in the report, then you have to remember to go back and fix it in the model. Therefore, I think the report generation still could use some work."

"I would like to see the ability to support more NoSQL platforms more quickly. In addition, enhancing the graphics to render more quickly would be beneficial for any user."

"I would like the solution to be less rigid in terms of its theory."

"Complete Compare is set up only to compare properties that are of interest to us, but some of the differences cannot be brought over from one version of the model to another. This is despite the fact that we are clicking to bring objects from one place to another. Therefore, it's hard to tell at times if Complete Compare is working as intended without having to manually go into the details and check everything. If it could be redesigned to a degree where it is easier to use when we bring things over from one site to another and be sure that it's been done correctly, that would be nice to have. We would probably use the tool more often if the Complete Compare were easier to use."

"I would like to see more support for working with the big-data world. There are so many new databases evolving and it's very hard for them to keep up with all of the new technologies. It would be good if they were able to dynamically support big-data platforms, other than Hive and Teradata."

"As someone who has used it for a long time, I have seen stability vary from version to version."

More erwin Data Modeler by Quest cons

"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."

"The solution needs to better integrate with other products, like Microsoft."

"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."

"This solution can be more user-friendly and easier to use, with better dashboards."

Pricing and Cost Advice

"The solution is expensive."

"erwin Data Modeler by Quest is an expensive solution."

"The tool is expensive."

"It is not a very expensive solution. Only the licensing and maintenance fee needs to be paid."

"I don't specifically know what we're paying now. About three years ago, in another organization, I have this memory of 6,000 AUD a seat or something like that, but I am not sure. In the mid-2000s, it was something like 1,200 AUD a seat. I get the impression that there was a price jump when it was spun off from CA as a separate company, which is understandable, but it could sometimes be a barrier in some organizations picking it up. I haven't talked to erwin people yet, but I'm going to suggest to them that they could perhaps think of having an entry-level product that is priced a bit lower, and then, you can buy the extra suite."

"The price should be lower in order to be on the same level as its competitors."

"This company had bought the license for three years, and it's not an individual license. While you can buy a license for each individual, that would be very expensive. There is something called concurrent licenses where you can purchase licenses in bulk and 15 to 20 people can access the license and model. Concurrent licenses are scalable to the number of users and are proportional to the cost."

"There are two license options and the pricing is reasonable."

More erwin Data Modeler by Quest pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

19%

Manufacturing Company

10%

Government

Computer Software Company

Manufacturing Company

17%

Financial Services Firm

15%

Computer Software Company

10%

Government

10%

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

No data available

Questions from the Community

What do you like most about erwin Data Modeler by Quest?

Forward engineering, DDL generation, reverse engineering, and reporting are the most valuable features of the solution.

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What is your experience regarding pricing and costs for erwin Data Modeler by Quest?

The product is expensive. I rate the product’s pricing a nine out of ten, where one is cheap and ten is expensive.

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What needs improvement with erwin Data Modeler by Quest?

As a documenting tool, it's solid, though its reporting could be more robust. The reporting mechanisms could be more intuitive regarding report creation. It can generate reports in CSV files, displ...

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Product Reports

Buyer's Guide

erwin Data Modeler by Quest

April 2025

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Buyer's Guide

Enterprise Architecture Management

March 2025

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Also Known As

erwin DM

Rational System Architect

Overview

erwin pioneered data modeling, and erwin Data Modeler (erwin DM) remains trusted, award-winning software for data modeling and database design, automating complex and time-consuming tasks. Use it to discover and document any data from anywhere for consistency, clarity and artifact reuse across large-scale data integration, master data management, metadata management, Big Data, business intelligence and analytics initiatives – all while supporting data governance and intelligence efforts.

erwin by Quest

IBM Rational System Architect is an enterprise architecture solution for visualizing, analyzing, and communicating enterprise architecture and business process analysis. This solution provides decision support, process optimization, and integration into solution delivery. Rational System Architect addresses all aspects of your organization's enterprise architecture, including modeling, publishing, analysis, and execution.

IBM

Sample Customers

Premera, America Honda Motors, Aetna, Kaiser Permanente, Dental Dental Cali, Cigna, Staples

Wuxi Lake Cloud, Nationwide, ETI, IDS Scheer

Buyer's Guide

IBM Rational System Architect vs. erwin Data Modeler by Quest

April 2025

Free Report: IBM Rational System Architect vs. erwin Data Modeler by Quest

Find out what your peers are saying about IBM Rational System Architect vs. erwin Data Modeler by Quest and other solutions. Updated: April 2025.

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