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

Download the report

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

Download the complete report

Helped 884,873 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

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.

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

"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."

"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."

"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."

"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."

"The product allows us to reuse entities and attributes."

"The product lets us import different types of models from various databases."

"I love the way erwin Data Modeler creates data models and presents them for our users."

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 interface must be improved."

"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."

"It does not have a cloud application."

"The price should be reduced."

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

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

"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."

"Some Source official systems give us DDLs to work with and they have contents not required to be part of the DDL before we reverse engineer in the erwin DM. Therefore, we manually make changes to those scripts and edit them, then reverse-engineer within the tool. So, it does take some time to edit these DDL scripts generated by the source operational systems. What I would suggest: It would be helpful if there were a place within the erwin tool to import the file and automatically eliminate all the unnecessary lines of code, and just have the clean code built-in to generate the table/data model."

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."

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

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

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

"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."

"Likewise, the solution is a little pricey."

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

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

884,873 professionals have used our research since 2012.

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.

See all answers

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. ...

See all answers

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...

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 8% of the time

Visio vs erwin Data Modeler

Compared 5% of the time

Lucidchart vs erwin Data Modeler

Compared 5% of the time

Sparx Systems Enterprise Architect vs erwin Data Modeler

Compared 5% of the time

More erwin Data Modeler Competitors

Sparx Systems Enterprise Architect vs UNICOM System Architect

Compared 33% of the time

IBM Rational System Architect vs UNICOM System Architect

Compared 30% of the time

BiZZdesign HoriZZon vs UNICOM System Architect

Compared 19% of the time

More UNICOM System Architect Competitors

Product Reports

Buyer's Guide

erwin Data Modeler

March 2026

Download erwin Data Modeler product report

Buyer's Guide

Enterprise Architecture Management

March 2026

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

March 2026

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: March 2026.

DOWNLOAD NOW

884,873 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.