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UNICOM System Architect vs erwin Data Modeler comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Mar 1, 2026

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
Ranking in Enterprise Architecture Management
1st
Average Rating
8.4
Reviews Sentiment
5.7
Number of Reviews
50
Ranking in other categories
Business Process Design (5th), Data Governance (10th)
UNICOM System Architect
Ranking in Enterprise Architecture Management
24th
Average Rating
6.0
Number of Reviews
2
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of May 2026, in the Enterprise Architecture Management category, the mindshare of erwin Data Modeler is 7.2%, down from 10.7% compared to the previous year. The mindshare of UNICOM System Architect is 1.6%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Enterprise Architecture Management Mindshare Distribution
ProductMindshare (%)
erwin Data Modeler7.2%
UNICOM System Architect1.6%
Other91.2%
Enterprise Architecture Management
 

Featured Reviews

Sushree Panigrahi - PeerSpot reviewer
Snowflake Data Engineer| Senior PLSQL Developer |Data Modeler|Assitant Vice Pre at Jp Morgan Chase & Co.
Data modeling has transformed regulatory reporting and collaboration across cloud environments
In erwin Data Modeler, areas that have room for improvement include performance improvements. I see that large models sometimes cause it to be slow when opening. Impact analysis can lag as well. Version control is another aspect. If we have developed a current version, it is not integrated with Git where we can easily compare different versions. UI modernization is also something we cannot utilize as it is primarily for development. Additionally, cloud-specific optimizations are needed when it comes to Snowflake or Databricks. When it comes to AI aspects, auto-suggestions for normalization or identifying primary, foreign, or surrogate keys are areas that can be improved.
reviewer1261290 - PeerSpot reviewer
Project Manager at a government with 10,001+ employees
Useful for creating build-outs and architecture views, but requires a publisher add-on for some detailed reports
I don't use the tool or know a lot. It is going to have some shortcomings. When it comes down to publishing, we just found out this week that they actually have a publisher add-on. So, what we were trying to publish was not giving a detailed report about the architecture, views, etc. I just wish they had sent these to UNICOM and contacted them about add-on features for the publishing part of the tool.

Quotes from Members

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

Pros

"It is the only meaningful way to do any data modeling."
"Another feature of erwin is that it can help you enforce your naming standards. It has little modules that you can set up and, as you're building the data model, it's ensuring that they conform to the naming standards that you've developed."
"The process of creating visual representations of data structures using erwin Data Modeler allows you to see everything you are doing, and you have visuals to see what you are going to do and what has been done so far."
"I love the way erwin Data Modeler creates data models and presents them for our users."
"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."
"What has been useful, I have been able to reverse engineer our existing data models to document explicitly referential integrity relationships, primary/foreign keys in the model, and create ERDs that are subject area-based which our clients can use when working with our databases. The reality is that our databases are not explicitly documented in the DDL with primary/foreign key relationships. You can't look at the DDL and explicitly understand the primary/foreign key relationships that exist between our tables, so the referential integrity is not easily understood. erwin has allowed me to explicitly document that and create ERDs. This has made it easier for our clients to consume our databases for their own purposes."
"The fitting model is very intuitive."
"It is a very good product if you want to import existing designs, and it is a tremendously flexible product for reverse engineering and database generation."
"It is useful for creating build-outs and architecture views and for publishing reports and stuff like that for different programs."
"It is useful for creating build-outs and architecture views and for publishing reports and stuff like that for different programs."
"It has good end-to-end metamodel interrelationships."
"It has good end-to-end metamodel interrelationships."
 

Cons

"This is a very complex product."
"The navigation is a little bit of a challenge. Moving around the model is painful because it doesn't follow the Windows model today."
"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 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."
"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."
"The solution's reporting side needs to be improved."
"I would like the solution to be more user-friendly to deploy."
"I don't use the tool or know a lot. It is going to have some shortcomings. When it comes down to publishing, we just found out this week that they actually have a publisher add-on. So, what we were trying to publish was not giving a detailed report about the architecture, views, etc. I just wish they had sent these to UNICOM and contacted them about add-on features for the publishing part of the tool."
"When it comes down to publishing, we just found out this week that they actually have a publisher add-on, so what we were trying to publish was not giving a detailed report about the architecture, views, etc."
"UNICOM System Architect is quite a dated tool. The usability needs to be improved."
"They need to add reports that show the enterprise architecture perspectives, and the dashboards should be comfortable for the senior enterprise architects so that they can view the complete landscape."
 

Pricing and Cost Advice

"The price of erwin Data Modeler is very expensive, in particular for this part of the world."
"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."
"erwin Data Modeler by Quest is an expensive solution."
"The primary reasons that erwin was selected were that it was much more affordable for us [than Embarcadero] and it was easily maintainable."
"The tool is expensive."
"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 pricing of the solution is cheap. I rate the pricing a five out of ten."
"It is not a very expensive solution. Only the licensing and maintenance fee needs to be paid."
"I don't remember the price. It is a different cost for just buying it, and then you have a maintenance cost, which you need to renew every year."
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Top Industries

By visitors reading reviews
Financial Services Firm
15%
Manufacturing Company
8%
Government
7%
Performing Arts
5%
No data available
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
By reviewers
Company SizeCount
Small Business16
Midsize Enterprise3
Large Enterprise38
No data available
 

Questions from the Community

What is your experience regarding pricing and costs for erwin Data Modeler by Quest?
I have no idea about the setup cost because I did not buy the license.
What needs improvement with erwin Data Modeler by Quest?
The UI in erwin Data Modeler can be improved significantly because when any new person opens the tool, all the toolbars are kept open with many tools in view, making it appear chunky. If possible, ...
What is your primary use case for erwin Data Modeler by Quest?
I primarly use erwin Data Modeler for modeling purposes. Once we have the business requirement, we create the models in erwin Data Modeler, and then we perform forward engineering to get the query ...
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Also Known As

erwin DM
No data available
 

Overview

 

Sample Customers

 Premera, America Honda Motors, Aetna, Kaiser Permanente, Dental Dental Cali, Cigna, Staples
Apple, Facebook, Google, HSBC, PayPal
Find out what your peers are saying about UNICOM System Architect vs. erwin Data Modeler and other solutions. Updated: April 2026.
893,221 professionals have used our research since 2012.