UNICOM System Architect vs erwin Data Modeler comparison

Quest Software and Unicom Systems are both solutions in the Enterprise Architecture Management category. Quest Software is ranked #3 with an average rating of 8.5, while Unicom Systems is ranked #25. Quest Software holds a 8.8% mindshare in AM, compared to Unicom Systems’s 1.1% mindshare. Additionally, 95% of Quest Software users are willing to recommend the solution, compared to 50% of Unicom Systems users who would recommend it.

erwin Data Modeler

Read 40 erwin Data Modeler reviews

4,967 Views
3,427 Comparison Views

95% willing to recommend

UNICOM System Architect

Read 2 UNICOM System Architect reviews

311 Views
311 Comparison Views

50% willing to recommend

erwin Data Modeler

UNICOM System Architect

Comparison Buyer's Guide

Download the report

Executive SummaryUpdated on Aug 19, 2025

UNICOM System Architect and erwin Data Modeler compete in enterprise architecture and data modeling. Erwin Data Modeler has the upper hand due to its comprehensive capabilities and user satisfaction.

Features: UNICOM System Architect is noted for its flexible integration with enterprise tools, strong architectural visualization, and focus on architectural frameworks. Erwin Data Modeler is valued for its robust data modeling features, ability to simplify complex data structures, and enhancement of data quality.

Ease of Deployment and Customer Service: UNICOM System Architect offers a flexible deployment model with strong customer support that ensures smooth implementation. Erwin Data Modeler is recognized for its straightforward deployment and responsive customer service, facilitating quick adaptation.

Pricing and ROI: UNICOM System Architect provides a more affordable upfront cost, appealing to businesses with budget constraints, while delivering steady ROI over time with versatile integration. Erwin Data Modeler requires a higher initial investment but offers significant long-term value with its superior data modeling functionalities.

To learn more, read our detailed UNICOM System Architect vs. erwin Data Modeler Report (Updated: September 2025).

Buyer's Guide

UNICOM System Architect vs. erwin Data Modeler

September 2025

Download the complete report

Helped 868,787 peers since 2012

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

3rd

Average Rating

8.6

Reviews Sentiment

6.6

Number of Reviews

Ranking in other categories

Business Process Design (9th), Data Governance (14th)

UNICOM System Architect

Ranking in Enterprise Architecture Management

25th

Average Rating

6.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of October 2025, in the Enterprise Architecture Management category, the mindshare of erwin Data Modeler is 8.8%, down from 10.7% compared to the previous year. The mindshare of UNICOM System Architect is 1.1%, up from 0.6% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Architecture Management Market Share Distribution
Product	Market Share (%)
erwin Data Modeler	8.8%
UNICOM System Architect	1.1%
Other	90.1%

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.

Read full review

reviewer1261290

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.

Read full review

Quotes from Members

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

Pros

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

"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."

"We use the macros with naming standards patterns, domains, datatypes, and some common attributes. As far as other automations, a feature of the Bulk Editor is mass updates. When it sees something is nonstandard or inaccurate, it will export the better data out. Then, I can easily see which entities and attributes are not inline or standard. I can easily make changes to what was uploaded to the Bulk Editor. When taking on a new project, it can save you about a half a day on a big project across an entire team."

"erwin has versioning so you can keep versions, over time, of those models and you can compare any version to any version. If you're looking at a specific database and you want to see what changed over time, that's really useful. You can go back to a different version or connect that to your change-control processes so you can see what was released when."

"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."

"The most valuable features are the ability to reverse engineer and do model comparison. With the reverse engineering, I can understand the databases from third-party products. With the model comparison, I can track the differences between two versions of the same database."

"The solution’s code generation ensures accurate engineering of data sources, as there is no development time. Code doesn't even have to be reviewed. We have been using this solution for so long and all the code which has been generated is accurate with the requirements. Once we generate the DDLs out of the erwin tools, the development team does a quick review of the script line by line. They will just be running the script on the database and looking into other requirements, such as the index. So, there is less effort from development side to create tables or build a database."

"The principal feature that I liked is that the solution has a very graphic interface."

More erwin Data Modeler pros

"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."

Cons

"The only real complaint I have is the time it takes to do a database comparison on a large model. If they could speed that up, that would be the only thing I can think of that needs improvement."

"This is a very complex product."

"The solution's model mark could be better because it crashes sometimes."

"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."

"I love the product. I love the ability to get into the code, make it automated, and make it do what I want. I would like to see them put some kind of governance over the ability to make changes to the mart tables with the API, so that instead of just using the modeler's rights to a table -- it has a separate set of rights for API access. That would give us the ability to put governance around API applications. Right now a person with erwin and Excel/VBA has the ability to make changes to models with the API if they also have rights to make changes to the model from erwin. It's a risk."

"It does not have a cloud application."

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

"I'd really like to see the PDF function become available. It would make my life much easier than what it is at the moment because whenever I need to collaborate with people that do not have erwin, I have to go through the wonkiness of going to Word and then save it from Word into PDF. There's a lot of differences between erwin 4.4 and 2020."

More erwin Data Modeler cons

"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."

"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."

Pricing and Cost Advice

"Though the solution is not cheap, it's worth the money."

"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."

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

"Likewise, the solution is a little pricey."

"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."

"Pricing is very high compared to any other product."

"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."

More erwin Data Modeler pricing and cost advice

"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."

See which vendors are best for you

Use our free recommendation engine to learn which Enterprise Architecture Management solutions are best for your needs.

See recommendations

868,787 professionals have used our research since 2012.

Top Industries

By visitors reading reviews

Financial Services Firm

18%

Manufacturing Company

Government

Computer Software Company

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	14
Midsize Enterprise	3
Large Enterprise	29

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.

See all answers

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

I do not recall the pricing from about a year and a half ago, but it seems reasonable.

See all answers

What needs improvement with erwin Data Modeler by Quest?

erwin Data Modeler could improve its UI as it still feels old school and not very modern. There are many features, and I would expect good documentation detailing each feature, including when and h...

See all answers

Ask a question

Earn 20 points

Comparisons

SAP PowerDesigner vs erwin Data Modeler

Compared 39% of the time

IDERA ER/Studio vs erwin Data Modeler

Compared 18% of the time

Lucidchart vs erwin Data Modeler

Compared 12% of the time

Visio vs erwin Data Modeler

Compared 6% of the time

Sparx Systems Enterprise Architect vs erwin Data Modeler

Compared 6% of the time

More erwin Data Modeler Competitors

Sparx Systems Enterprise Architect vs UNICOM System Architect

Compared 100% of the time

More UNICOM System Architect Competitors

Product Reports

Buyer's Guide

erwin Data Modeler

September 2025

Download erwin Data Modeler product report

Buyer's Guide

Enterprise Architecture Management

September 2025

Download UNICOM System Architect product report

Also Known As

erwin DM

No data available

Overview

Erwin Data Modeler provides an effective approach to visualizing and managing data models. It assists in creating, reversing, and synchronizing data models with ease, supporting logical and physical transitions while enhancing understanding across teams.

Erwin Data Modeler is a comprehensive tool designed for professional database management. It offers capabilities to organize and enforce standards, automating script generation with robust reverse engineering and DDL output. Users can manage complex data environments, capitalize on integration with data intelligence, and maintain large-scale databases smoothly. Despite its strengths, improvements in multi-language support, database integration, and reporting features are needed. Users benefit from extensive support for conceptual, logical, and physical database modeling, enhancing architectural design and data governance for platforms like SQL Server, Oracle, and Teradata.

What are the key features of Erwin Data Modeler?

Visual Representation: Facilitates clear visualization of data models, aiding comprehension.
Versioning and Editing: Enhance usability with versioning and bulk editing capabilities.
Reverse Engineering: Offers powerful tools for reverse engineering and DDL generation.
Integration: Aligns with data intelligence to streamline database management.
Naming Standards: Enforces consistency with automated script creation.

What benefits should users consider in Erwin Data Modeler reviews?

Collaboration: Promotes team understanding and collaboration through visual tools.
Automation: Reduces manual effort through automated processes and integration.
Scalability: Handles large database management efficiently, crucial for enterprise settings.
Data Governance: Facilitates effective data governance with structured modeling.

Erwin Data Modeler finds application in industries focused on robust data management, implementing it for enterprise data warehouses, business domain models, and operational systems. It supports architectural design and governance, aligning with business applications demanding precise data representation and visualization.

Quest Software

Information not available

Unicom Systems

Sample Customers

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

Apple, Facebook, Google, HSBC, PayPal

Buyer's Guide

UNICOM System Architect vs. erwin Data Modeler

September 2025

Free Report: UNICOM System Architect vs. erwin Data Modeler

Find out what your peers are saying about UNICOM System Architect vs. erwin Data Modeler and other solutions. Updated: September 2025.

DOWNLOAD NOW

868,787 professionals have used our research since 2012.

See our UNICOM System Architect vs. erwin Data Modeler report.

See our list of best Enterprise Architecture Management vendors.

We monitor all Enterprise Architecture Management reviews to prevent fraudulent reviews and keep review quality high. We do not post reviews by company employees or direct competitors. We validate each review for authenticity via cross-reference with LinkedIn, and personal follow-up with the reviewer when necessary.