
The new Cradle version (7.1) is very close combining SysML, other modelling notations with full-lifecycle requirements management and systems engineering!
Watch for developments here, or visit: www.threesl.com for more updates!
Noteworthy news articles about Structured Software Systems Limited (3SL) , Cradle, or related customer / industry stories.

The new Cradle version (7.1) is very close combining SysML, other modelling notations with full-lifecycle requirements management and systems engineering!
Watch for developments here, or visit: www.threesl.com for more updates!
It is time to announce the end of the Beta test period for Cradle-7.1, our release that introduces SysML into the set of notations that are supported by Cradle’s modelling tools.
We would like to express our thanks to all of the people who provided their time to study Cradle-7.1, and we would also like to thank their organisations for agreeing to this use of their time.
We have received much valuable feedback from the Beta testing and we have included as much of this feedback as possible into the Cradle-7.1 release.
We expect to make an announcement about the release of Cradle-7.1 very soon!
As has been the case with all previous releases of Cradle:
– Security Codes for previous versions of Cradle will not work with Cradle-7.1
– New Security Codes for Cradle-7.1 will be provided, on request, to anyone who has an active maintenance agreement with 3SL
Once again, to all Beta testers, thank you very much!
The Beta testing of Cradle-7.1 has been underway for a little while.
The testing is going very well, with useful feedback from the Beta testers about the new SysML capability and the other enhancements in this latest Cradle release.
We expect to make an announcement about Cradle-7.1 at the end of this month.
We would like to express our thanks to those who have been able to get involved, your help is very much appreciated!
With best regards
We are pleased to advise that the February 2016 newsletter is now available. You can view it here:
https://www.threesl.com/pages/news/webletter-February16/index.php
We have sent several thousand e-mails announcing this newsletter. If you did not receive one, and would like to be added to our distribution list, please send your e-mail address to me at: mark.walker@threesl.com
We are curious to know what people think of using force directed graphs as a way to display the relationships between items in Hierarchy Diagrams (HIDs).
At the moment, HIDs are drawn using a fixed algorithm, in which you can control:
Force directed graphs are an alternative way to arrange the same boxes (items) and lines (cross references) in a HID.
What do you think?
We are pleased to announce that we will be presenting a paper at the forthcoming SEDC 2016 conference, either:
– “Executives Will Want to use MBSE”, or
– “Learn a Simple MBSE Process by Connecting the Dots Using SysML Tutorial”
Details of the SEDC conference can be found here:
http://www.sedcconference.org/
We look forward to meeting you there!
We are pleased to announce that we have been re-accredited under the UK Government’s Cyber Essentials scheme. This assures a certain level of security of 3SL’s systems, particularly those facing the raw Internet.
For more details, see here: https://www.ncsc.gov.uk/cyberessentials/overview.
We are pleased to announce that another update to our new website has gone live!
This update incldues access to the full help system shipped with all Cradle products. So now you can access all of the Cradle product help directly through our website!
Visit our website and select: Support -> Cradle Help
or look here: https://www.threesl.com/cradle/help/
We hope that this is helpful!
We are pleased to announce that our January newsletter is now available at:
https://www.threesl.com/pages/news/webletter-January16/index.php
You may have already received an e-mail about the new newsletter, we sent several thousand e-mails about it.
If you did not receive an e-mail from us, please contact me at: mark.walker@threesl.com and I will add you to our e-mail distribution list!

As we all know viruses are a sad reality of today’s world. Just like their biological cousins they cause havoc as they move and infect their hosts.
The never ending war against them is fought by many corporations with their anti-virus software. We should all try and ensure our machines are inoculated with the latest databases. We ourselves protect all our machines, and monitor the content of incoming emails (see Related Articles)
While most businesses agree a false positive is better than a missed virus, it can cause significant impact for the customer and the vendor.
We have noticed some issue with another false positive from anti-virus software from Symantec. We therefore try to pre-register all of the Cradle executables with anti-virus (AV) software providers. This will ensure that you have no problems installing the Cradle suite.
We currently white-list register with AVG†, McAfee†, Kaspersky† and Avast† and notify Symantec† of any problems.
This should lead to trouble free installation for all our customers.
†No endorsement or guarantee is implied or given by these third party vendors.
It would assist 3SL if you have any flavour of AV software that incorrectly highlights Cradle components as problematic.