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3SL Cradle vs IBM DOORS comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Apr 6, 2025

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

3SL Cradle
Ranking in Application Requirements Management
8th
Average Rating
8.0
Reviews Sentiment
9.2
Number of Reviews
3
Ranking in other categories
No ranking in other categories
IBM DOORS
Ranking in Application Requirements Management
2nd
Average Rating
8.0
Reviews Sentiment
7.0
Number of Reviews
55
Ranking in other categories
No ranking in other categories
 

Mindshare comparison

As of October 2025, in the Application Requirements Management category, the mindshare of 3SL Cradle is 1.8%, up from 1.3% compared to the previous year. The mindshare of IBM DOORS is 30.6%, down from 34.7% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Application Requirements Management Market Share Distribution
ProductMarket Share (%)
IBM DOORS30.6%
3SL Cradle1.8%
Other67.6%
Application Requirements Management
 

Featured Reviews

Siegmar-Schuenke - PeerSpot reviewer
Flexible solution that manages all your needs
I mainly use 3SL Cradle to manage the requirements from service projects 3SL Cradle's most valuable feature is its flexibility in managing all your needs immediately.  3SL Cradle could be improved with better support for SysML functionalities. In the next release, I would like 3SL Cradle to be…
UweSeufert - PeerSpot reviewer
Old but capable of storing, organizing, and exchanging requirements
I use IBM DOORS because my customer wants it for managing their requirements IBM DOORS is a tool from the 20th century. It is very old but capable of storing, organizing, and exchanging requirements. It helps to manage requirements efficiently, which significantly improves the way requirements…

Quotes from Members

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

Pros

"3SL Cradle's most valuable feature is its flexibility in managing all your needs immediately."
"I really enjoyed the API."
"It is a mature product that is stable."
"IBM Rational DOORS keeps everything organized."
"I like being able to sort and categorize the requirements and the exporting functions."
"Rational DOORS' most valuable feature is that you can write any kind of requirement you want."
"When you install DOORS locally, you have the flexibility to do what you want with the solution. You can add functionality and do many things that you can't do with other tools or do well enough to satisfy your users' requirements."
"Starting to use the solution is pretty straightforward. There isn't too much of a learning curve."
"The solution is stable."
 

Cons

"3SL Cradle could be improved with better support for SysML functionalities."
"Complexity, performance, openness are the three areas that can be improved. The IBM architecture and specifically Jazz looks more complex. There are a lot of servers. It's quite complicated. The search capabilities lack in IBM Rational DOORS Classic for customers who have a database with a requirement of more than 25,000 records. For example, you can search easily for a module, but it's really difficult to look for keywords through the whole database because all the modules are separated into small components, which makes the search quite complex. This is something that's really annoying because when we want to make an impact analysis, we would like to analyze the product globally. It's quite difficult to manage. The fact that you can interact externally with data makes it complex. The approach is complex and doesn't work as expected. For example, when I tried to experiment with exporting some records, the tool crashed, but I couldn't find out the root cause, that is, whether it happened because of Rational Windows or lack of memory. It was just crashing. Logs weren't very clear. IBM can try to use more recent technology for different aspects and make it easy. They can also provide free integration from DOORS Classic to DOORS. Currently, all the customization in Excel is lost, which makes it very complex. It would be a feature to make new versions compatible with features in the past versions."
"I would like to see them improve in agile management the Scrum/Kanban Board to work with overseas team members."
"IBM DOORS should cover all engineering functions seamlessly, not just requirement engineering."
"Not all Rational Team Concert operations are available from the web client. Certain operations, like creating streams or components, still require using the desktop application. They're not accessible through the web interface. And in my opinion, this limitation should be removed."
"The images are not clear. We have to use them as OLE objects. And in the testing part, I'm not sure how to link it with it. This is my main concern."
"The interface is not very user-friendly and has not evolved in a long time."
"It would be helpful if Microsoft provided a more user-friendly interface for updating and querying updates. Additionally, if there was a way for users to notify developers of any changes in requirements, it would allow for faster and more efficient updates to the solution's architecture. This could be in the form of a notification system that alerts developers of any changes that need to be made. Additionally, the solution is document-driven and it should be more digital."
"Enhancing security measures, particularly when handling multiple projects simultaneously, would be beneficial to prevent data loss within DOORS."
 

Pricing and Cost Advice

Information not available
"I think it's expensive because you have to pay for the licenses to IBM and all that and maintain them."
"The licensing cost is too high."
"Pricing can vary depending on the size of the organization and how contracts are negotiated."
"It is expensive to onboard additional users."
"It's expensive."
"We have to pay for a license. I think it's a one-time payment as my company hasn't notified me about more charges. I don't think it's expensive for large corporations, but it will be costly for an average person."
"IBM DOORS is available at a reasonable price"
"I am not sure why it is so expensive, but one license will cost approximately $15,000 in US dollars."
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Top Industries

By visitors reading reviews
Manufacturing Company
28%
Aerospace/Defense Firm
23%
Energy/Utilities Company
12%
Comms Service Provider
5%
Manufacturing Company
26%
Aerospace/Defense Firm
8%
Computer Software Company
7%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
By reviewers
Company SizeCount
Small Business12
Midsize Enterprise10
Large Enterprise36
 

Questions from the Community

What needs improvement with 3SL Cradle?
The support is consistent globally. However, heavier support is provided in certain locations. Improvement in support is necessary. Assistance is available to acquire information and utilize userna...
What advice do you have for others considering 3SL Cradle?
If you have time to take some courses about 3SL Cradle, it will give you more time in the project to familiarize yourself with Cradle. I recommend it, but you need to do it within a very short time...
What do you like most about IBM Rational DOORS?
The traceability matrix in DOORS improved our project outcomes. It helps ensure coverage of requirements at different levels, from user requirements to software requirements to test requirements.
What is your experience regarding pricing and costs for IBM Rational DOORS?
Over the years, the first version cost something around 5800 euros.
What needs improvement with IBM Rational DOORS?
Compared to today, DOORS' competitors also excel in this discipline. Yet the price is too high. It's often not as generic as it used to be. IBM promised to find a way for a generic format that allo...
 

Comparisons

 

Also Known As

Cradle
Rational DOORS
 

Overview

 

Sample Customers

NASA, In-Depth Engineering Corporation, Avibras
Infosys, Chevrolet Volt
Find out what your peers are saying about 3SL Cradle vs. IBM DOORS and other solutions. Updated: September 2025.
872,655 professionals have used our research since 2012.