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IBM Rational System Architect vs erwin Data Modeler by Quest 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

erwin Data Modeler by Quest
Ranking in Enterprise Architecture Management
3rd
Average Rating
8.6
Reviews Sentiment
7.2
Number of Reviews
39
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
5
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of April 2025, in the Enterprise Architecture Management category, the mindshare of erwin Data Modeler by Quest is 10.8%, up from 9.9% compared to the previous year. The mindshare of IBM Rational System Architect is 1.7%, down from 2.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Architecture Management
 

Featured Reviews

JorgeSanz - PeerSpot reviewer
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.
it_user951237 - PeerSpot reviewer
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.

Quotes from Members

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

Pros

"It allows us to create logical data models. We can represent a database model in business terms, which is very useful for us."
"It's a safeguard for me because I'm always concerned that somebody is free handing it and will forget a key coming from the parent. The migrating keys are a great feature. Identifying relationships, non-identifying relationships, and being visually right there to understand the differences are great features. erwin is key to being able to visually understand whatever the customer is requesting. They'll give you words on a paper, but once they can actually view it as a picture, it really comes to life. The data comes to life to where they understand exactly what they're asking for."
"We use the Forward and Reverse Engineering tools to help us speed things up and create things that would have to be done otherwise by hand. E.g., getting a database into a data model format or vice versa."
"It has centralized storage so that a data model can be shared by different teams."
"They have a lot of features and the most up-to-date technology integration, which I haven't seen in other products."
"The data lineage feature is very valuable."
"Quest can create conceptual and physical data models to facilitate effective communication between business and IT. It can also integrate expertise from various engineering and database systems within your organization to enhance data management and administration."
"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 solution is pretty stable."
"The user interface is good. It's both clear and comprehensible. It's easy to work with."
"We have seen ROI with this solution over the years that we have used it."
"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."
 

Cons

"I would like to see the reporting capabilities be more dynamic and more inclusive of information. The API is very sparsely understood by people across the user community."
"The modeling product itself is far and above anything else that I've seen on the market. There are certain inconsistencies when it comes to keeping up with other platforms' databases in the reverse-engineering process. It should also support more database platforms."
"It would be nice to have it on the Linux platform, not just Windows. If they can support Linux, there would be a huge market for it."
"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."
"The erwin Data Modeler is quite complex to use."
"I still use Visio for conceptual modeling, and that's mainly because it is easier to change things, and you can relax some of the rules. DM's eventual target is a database, which means you actually have to dot all the Is and cross all the Ts, but in a conceptual model, you don't often know what you're working with. So, that's probably a constraint with erwin. They have made it a lot easier, and they've done a lot, but there is probably still room for improvement in terms of the ease of presentation back to the business. I'm comparing it with something like Visio where you can change colors on a box, change the text color and that sort of stuff, and change the lines. Such things are a whole lot easier in Visio, but once you get a theme organized in erwin, you can apply that theme to all of the objects. So, it becomes easier, but you do have to set up that theme."
"We are planning to move, in 2021, into their server version, where multiple data modelers can work at the same time and share their models. It has become a pain point to merge the models from individual desktops and get them into a single data model, when multiple data modelers are working on a particular project. It becomes a nightmare for the senior data modeler to bring them together, especially when it comes to recreating them when you want to merge them."
"The erwin ETL functionality has room for improvement when it comes to mapping databases with a classic entity-relationship model to a data warehouse model."
"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 solution needs to better integrate with other products, like Microsoft."
"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."
 

Pricing and Cost Advice

"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 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."
"The pricing of the solution is cheap. I rate the pricing a five out of ten."
"erwin is expensive compared to other solutions. We are paying almost $6,000 per seat a month."
"Price-wise, erwin Data Modeler is okay. You can purchase a single license and it is not very expensive."
"The tool is expensive."
"Though the solution is not cheap, it's worth the money."
"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."
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Top Industries

By visitors reading reviews
Financial Services Firm
19%
Manufacturing Company
10%
Government
9%
Computer Software Company
7%
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.
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.
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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Also Known As

erwin DM
Rational System Architect
 

Overview

 

Sample Customers

 Premera, America Honda Motors, Aetna, Kaiser Permanente, Dental Dental Cali, Cigna, Staples
Wuxi Lake Cloud, Nationwide, ETI, IDS Scheer
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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