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 #1 with an average rating of 8.4, while Unicom Systems is ranked #24. Quest Software holds a 8.3% mindshare in AM, compared to Unicom Systems’s 1.4% 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 48 erwin Data Modeler reviews

5,701 Views
3,877 Comparison Views

95% willing to recommend

UNICOM System Architect

Read 2 UNICOM System Architect reviews

418 Views
418 Comparison Views

50% willing to recommend

erwin Data Modeler

UNICOM System Architect

Comparison Buyer's Guide

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Executive SummaryUpdated on Mar 1, 2026

UNICOM System Architect and erwin Data Modeler are enterprise software solutions competing in the areas of architecture and data modeling. UNICOM System Architect has the upper hand in strategic architecture planning, while erwin Data Modeler is stronger in data modeling functionalities.

Features: UNICOM System Architect offers enterprise architecture support, strategic planning capabilities, and system integration options. Erwin Data Modeler provides advanced data modeling, metadata management, and collaborative features.

Ease of Deployment and Customer Service: UNICOM System Architect has flexible deployment options and strong customer service, supporting strategic architecture integration. Erwin Data Modeler offers streamlined deployment, easing transition for data environments.

Pricing and ROI: UNICOM System Architect involves a higher initial setup cost with strategic long-term ROI. Erwin Data Modeler offers a lower upfront cost, providing faster ROI through data optimization.

To learn more, read our detailed UNICOM System Architect vs. erwin Data Modeler Report (Updated: March 2026).

Buyer's Guide

UNICOM System Architect vs. erwin Data Modeler

March 2026

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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

Ranking in Enterprise Architecture Management

1st

Average Rating

8.4

Reviews Sentiment

5.9

Number of Reviews

Ranking in other categories

Business Process Design (6th), Data Governance (9th)

UNICOM System Architect

Ranking in Enterprise Architecture Management

24th

Average Rating

6.0

Number of Reviews

Ranking in other categories

No ranking in other categories

Mindshare comparison

As of March 2026, in the Enterprise Architecture Management category, the mindshare of erwin Data Modeler is 8.3%, down from 11.0% compared to the previous year. The mindshare of UNICOM System Architect is 1.4%, up from 0.5% compared to the previous year. It is calculated based on PeerSpot user engagement data.

Enterprise Architecture Management Mindshare Distribution
Product	Mindshare (%)
erwin Data Modeler	8.3%
UNICOM System Architect	1.4%
Other	90.3%

Enterprise Architecture Management

Featured Reviews

Sushree Panigrahi

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.

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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.

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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

"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."

"It has centralized storage so that a data model can be shared by different teams."

"The fitting model is very intuitive."

"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."

"I have used most of the modeling tools available, but I found that erwin Data Modeler is the most suitable data modeling tool in our current industry."

"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."

"The visual data models for helping to overcome data source complexity and enabling understanding and collaboration around maintenance and usage are excellent. A picture speaks 1,000 words. Seeing a picture that shows you how the data relates to each other helps you better understand what the data is and how to use it. Pairing that information with a dictionary, which has the definitions of the tables and columns or the entities and attributes, ensures that the users understand what the data is so that they can use it best and most successfully."

"The generation of DDL saved us having to write the steps by hand. You still had to go in and make some minor modifications to make it deployable to the database system. However, for the data lineage, it is very valuable for tracing our use of data, especially personal confidential data through different systems."

More erwin Data Modeler pros

"It has good end-to-end metamodel interrelationships."

"It is useful for creating build-outs and architecture views and for publishing reports and stuff like that for different programs."

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."

"I would like to have more data sources from other, different vendors. In recent years, the vendor has reduced the number of data sources, and I would like to have more data sources for every brand. For example, with Oracle, I would like to have compatibility for many versions, including old ones, not just the most recent."

"It has a very steep learning curve, limited support for NoSQL or streaming systems, and potentially a high licensing cost."

"I would like the solution to be more user-friendly to deploy."

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

"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."

"Erwin Data Modeler is a good product, but I recently experienced a problem where I was not able to open an erwin Data Modeler file because its version had automatically changed."

"The solution's reporting side needs to be improved."

More erwin Data Modeler cons

"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."

"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

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

"There is either a one-year or three-year license. It is not a pay-as-you-go license like a SaaS solution. It’s more of a traditional licensing. They are a little bit on the pricier side."

"There are no costs in addition to the standard licensing fees."

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

"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."

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

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

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."

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Top Industries

By visitors reading reviews

Financial Services Firm

16%

Manufacturing Company

Government

Performing Arts

No data available

Company Size

By reviewers

Large Enterprise

Midsize Enterprise

Small Business

By reviewers
Company Size	Count
Small Business	16
Midsize Enterprise	3
Large Enterprise	35

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.

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What needs improvement with erwin Data Modeler by Quest?

As we all know, AI is taking up a majority of things. I felt that erwin Data Modeler is a bit of an outdated tool. It needs a new look and integrating AI into it would be much better for learning. ...

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What is your primary use case for erwin Data Modeler by Quest?

For erwin Data Modeler, the use case was to create a data model for the organization. It articulates how data flows throughout the organization. For example, we have an employee table with two type...

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Product Reports

Buyer's Guide

erwin Data Modeler

March 2026

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Buyer's Guide

Enterprise Architecture Management

March 2026

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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

March 2026

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