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IBM Rational Test Workbench vs OpenText Silk Test comparison

 

Comparison Buyer's Guide

Executive SummaryUpdated on Dec 15, 2024

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

IBM Rational Test Workbench
Ranking in Test Automation Tools
36th
Average Rating
7.6
Reviews Sentiment
7.3
Number of Reviews
4
Ranking in other categories
Performance Testing Tools (19th), API Testing Tools (15th)
OpenText Silk Test
Ranking in Test Automation Tools
19th
Average Rating
7.6
Reviews Sentiment
6.8
Number of Reviews
17
Ranking in other categories
Functional Testing Tools (19th), Regression Testing Tools (8th)
 

Mindshare comparison

As of May 2025, in the Test Automation Tools category, the mindshare of IBM Rational Test Workbench is 0.2%, up from 0.1% compared to the previous year. The mindshare of OpenText Silk Test is 0.8%, down from 1.1% compared to the previous year. It is calculated based on PeerSpot user engagement data.
Test Automation Tools
 

Featured Reviews

reviewer1513668 - PeerSpot reviewer
Good reporting and interface, but supports limited types of protocols and requires low-level script editing
It should have more interfaces. In terms of interfaces or protocols, what you can do with Rational is far limited as compared to other products out there. What it does, it does great, but it only gives you limited types of protocols. It supports between 8 to 15 types of protocols, whereas other test tools give you 20 to 30 types of protocols with which you can do testing and convert to script. It records Javascript-based scripts, and you got to know a little bit of Java to basically be able to edit them, but the level of editing you got to do is very low. I like that, but the ability to edit the script is not as good as Parasoft or LoadRunner, which have C-Script.
SrinivasPakala - PeerSpot reviewer
Stable, with good statistics and detailed reporting available
While we are performance testing the engineering key, we need to come up with load strategies to commence the test. We'll help to monitor the test, and afterward, we'll help to make all the outcomes, and if they are new, we'll do lots and lots of interpretation and analysis across various servers, to look at response times, and impact. For example, whatever the observations we had during the test, we need to implement it. We'll have to help to catch what exactly is the issues were, and we'll help to see how they can be reduced. Everything is very manual. It's up to us to find out exactly what the issues are. The solution needs better monitoring, especially of CPU.

Quotes from Members

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

Pros

"This solution provides for API testing, functional UI testing, performance testing, and service virtualization."
"Reporting is pretty good. Its interface is also good. I'm overall pretty happy with the functionality and use of IBM Rational Test Workbench."
"The scalability of the solution is quite good. You can easily expand the product if you need to."
"The feature I like most is the ease of reporting."
"Scripting is the most valuable. We are able to record and then go in and modify the script that it creates. It has a lot of generative scripts."
"A good automation tool that supports SAP functional testing."
"The ability to develop scripts in Visual Studio, Visual Studio integration, is the most valuable feature."
"The statistics that are available are very good."
"The major thing it has helped with is to reduce the workload on testing activities."
"It's easy to automate and accelerate testing."
 

Cons

"There are a number of things that they can do to simplify the tools, but the most important thing that they need to do is simplify the installation."
"It should have more interfaces. In terms of interfaces or protocols, what you can do with Rational is far limited as compared to other products out there. What it does, it does great, but it only gives you limited types of protocols. It supports between 8 to 15 types of protocols, whereas other test tools give you 20 to 30 types of protocols with which you can do testing and convert to script. It records Javascript-based scripts, and you got to know a little bit of Java to basically be able to edit them, but the level of editing you got to do is very low. I like that, but the ability to edit the script is not as good as Parasoft or LoadRunner, which have C-Script."
"The solution has a lack of compatibility with newer technologies."
"The pricing is an issue, the program is very expensive. That is something that can improve."
"We moved to Ranorex because the solution did not easily scale, and we could not find good and short term third-party help. We needed to have a bigger pool of third-party contractors that we could draw on for specific implementations. Silk didn't have that, and we found what we needed for Ranorex here in the Houston area. It would be good if there is more community support. I don't know if Silk runs a user conference once a year and how they set up partners. We need to be able to talk to somebody more than just on the phone. It really comes right down to that. The generated automated script was highly dependent upon screen position and other keys that were not as robust as we wanted. We found the automated script generated by Ranorex and the other key information about a specific data point to be more robust. It handled the transition better when we moved from computer to computer and from one size of the application to the other size. When we restarted Silk, we typically had to recalibrate screen elements within the script. Ranorex also has some of these same issues, but when we restart, it typically is faster, which is important."
"Could be more user-friendly on the installation and configuration side."
"The support for automation with iOS applications can be better."
"The pricing could be improved."
"Everything is very manual. It's up to us to find out exactly what the issues are."
"They should extend some of the functions that are a bit clunky and improve the integration."
 

Pricing and Cost Advice

"The pricing is a little bit on the higher side, although it is really good."
"It doesn't really concern me. Licensing is on a yearly basis."
"Our licensing fees are on a yearly basis, and while I think that the price is quite reasonable I am not allowed to share those details."
"We paid annually. There is a purchase cost, and then there is an ongoing maintenance fee."
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Top Industries

By visitors reading reviews
Financial Services Firm
32%
Computer Software Company
13%
Government
10%
Manufacturing Company
10%
Computer Software Company
21%
Financial Services Firm
18%
Manufacturing Company
10%
Government
6%
 

Company Size

By reviewers
Large Enterprise
Midsize Enterprise
Small Business
No data available
 

Questions from the Community

Ask a question
Earn 20 points
What is your experience regarding pricing and costs for Silk Test?
The pricing depends on the license used. The pricing is similar to others in the market.
What is your primary use case for Silk Test?
The product is used for manual, functional, and performance testing. I'm using the tool for loading data into ERP systems.
 

Also Known As

Rational Test Workbench, IBM Rational Performance Tester, IBM Functional Tester, IBM Rational Test Virtualization Server
Segue, SilkTest, Micro Focus Silk Test
 

Overview

 

Sample Customers

Financial Insurance Management Corp.
Krung Thai Computer Services, Quality Kiosk, Mªller, AVG Technologies
Find out what your peers are saying about IBM Rational Test Workbench vs. OpenText Silk Test and other solutions. Updated: April 2025.
850,028 professionals have used our research since 2012.