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 #18. 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

3,925 Views
2,164 Comparison Views

95% willing to recommend

IBM Rational System Architect

Read 5 IBM Rational System Architect reviews

820 Views
446 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

18th

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

"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."

"The ability to collaborate between different members across the organization is the most valuable feature. It gives us the ability to work on the same model, regardless of where we are physically."

"We find that its ability to generate database code from a model for a wide array of data sources cuts development time. The ability to create one model in your design phase and then have it generate DDL code for Oracle or Teradata, or whichever environment you need is really nice. It's not only nice but it also saves man-hours of time. You would have to take your design and just type in manually. It has to take days off out of the work."

"Any tool will do diagramming but I think the ability to put the stuff up in a graphical fashion, then think about it, and keep things consistent is what's valuable about it. It's too easy when you're using other methods to not have naming consistent standards and column consistent definitions, et cetera."

"The solution is excellent in providing a visual representation of a database and can generate DDL for implementing changes. We use DDL for logical purposes to review with business people, ensuring they have the required fields for processing. We also use it as a data dictionary for the physical data model to understand all the purposes of the terms. This helps us map the logical and physical terms with the business definition to understand our data."

"The solution's ability to compare and synchronize data sources with data models is fantastic. We use it for that on a regular basis to make sure that changes haven't been made to the database outside of the modeling process. I can take existing databases and reverse engineer them and understand their structure within 15 minutes. If I didn't have Data Modeler it would take hours. It increases our productivity and helps in understanding our legacy application."

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

"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."

More erwin Data Modeler by Quest 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."

Cons

"In terms of new features, it would be great to have a cloud base. We should be able to put it on the cloud for better collaboration and data models sharing."

"erwin generally fails to successfully reverse engineer our Oracle Databases into erwin data models. The way that they are engineered on our side, the syntax is correct from an Oracle perspective, but it seems to be very difficult for erwin to interpret. What I end up doing is using Oracle Data Modeler to reverse engineer into the Oracle data model, then forward engineer the DDL into an Oracle syntax, and importing that DDL into erwin in order to successfully bring in most of the information from our physical data models. That is a bit of a challenge."

"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."

"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 the solution to be more user-friendly to deploy."

"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."

"The reverse engineering in Oracle Databases needs improvement, as there are issues."

"I am not so happy with its speed. Sometimes, it can have problems with connections."

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."

"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."

Pricing and Cost Advice

"I wish it wasn't so expensive. I would love to personally buy a copy of my own and have it at home, because the next job that I'm looking at is probably project management and I might not have access to the tool. I would like to keep my ability to use the tool. Therefore, they should probably have a pricing for people like me who want to just use the solution as an independent consultant, trying to get started. $3,000 is a big hit."

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

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

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

"An issue right now would be that erwin doesn't have a freely available browser (that I am aware of) for people who are not data modelers or data engineers that a consumer could use to look at the data models and play with it. This would not be to make any changes, but just to visually look at what exists. There are other products out there which do have end user browsers available and allow them to access data models via the data modeling tool."

"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."

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

"erwin has this option where you pay a one-time fee and you have the license for six years, which makes sense because I don't upgrade my database engine every other year. I have an application that depends on it. This is something weird about PowerDesigner. There are no additional costs beyond the standard licensing fee."

More erwin Data Modeler by Quest pricing and cost advice

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Top Industries

By visitors reading reviews

Financial Services Firm

18%

Manufacturing Company

10%

Government

Computer Software Company

Manufacturing Company

17%

Financial Services Firm

15%

Government

10%

Computer Software Company

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

May 2025

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Enterprise Architecture Management

May 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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