Eclipse 2017

Brighten Up Your Day

Things may get dark outside for some today with the eclipse 2017. However,  a real #MondayMotivation would be knowing you have the right tools for the job in the week ahead. Don’t be left in the dark, head over to 3SL and make sure you have your copy of Cradle. Be enlightened to the benefits of Requirements Management and Systems Engineering, whatever your task – Be in Control.

Cartoon of the eclipse and how 3SL could brighten your way
Eclipse 2017 Don’t be left in the Dark

For more information about Eclipse 2017on 21st August 2017,  visit the NASA website site.

3SL Inc. – Moves Office

Cradle’s U.S. Distributor Moves

After spending the last 7 years in a wonderful office, 3SL Inc. seized the opportunity to be a part of an exciting and growing co-working movement at Huntsville West . It is one of the newest co-working spaces in Huntsville. (See https://www.us-3sl.com/contact.html for contact details)

Bye Bye 1500 Perimeter Parkway,  Hello 3001 9th Ave. Huntsville.

3SL Inc. announce their move to Huntsville West, and we (3SL) wish them all the best in their new home. We trust all their staff and all our North American customers continued success.

Screen shot of 3SL Inc home page
3SL Inc – New Office

For all Cradle Distributors and Head Office details please see 3SL contacts page.

Cradle 7.3 – Now Available

We are pleased to announce the latest Cradle release!

3SL customers with active maintenance have been sent an e-mail notification of this release, and details of which enhancement requests and bug reports are in it.

Cradle 7.3
Cradle 7.3

New Capabilities

This release contains a range of new capabilities that are described in its release notes:
https://www.threesl.com/downloads/download.php?version=v7.3&section=software&filename=rm00777-V73ReleaseNotes.pdf

Some of the highlights are:

  • Metrics – Calculations on metric results
  • Configuration Management – Related item submissions
  • Categories – Skill based control
  • Link rules – Cardinality control
  • Item Ownership – Set item ownership of item’s related items
  • New Cradle and Toolsuite installers

Download

It is available from our website here:  https://www.threesl.com/downloads/software.php

You need a new Security Code for 7.3, other Security Codes cannot be used. There is a database conversion from 7.2 to 7.3. The converter will run automatically if you install Cradle-7.3 over the top of, in the same directory as, the earlier version of Cradle from which you are upgrading.

You must upgrade all Cradle installations to 7.3. Cradle-7.2 clients cannot connect to a 7.3 server, and a 7.3 server cannot serve Cradle-7.2 clients.

We hope that you will welcome the new capabilities in this new version!

National Cream Tea Day 2017

It’s Friday 30th June and it’s National Cream Tea Day

National Cream Tea Day celebrates a very British tradition of tea and scone. There is a long ‘ranging’ debate as to whether the clotted cream should be spread first then the jam or the jam first followed by cream. This debate has separated Devon and Cornwall for years!

From a design point of view, we offer the following:

  • If using clotted cream instead of butter, then it can be spread first with a small dollop of jam atop.
  • If you are using whipped cream then it always has to go on after the jam.

Our Extended Functional Flow Block Diagram (eFFBD) allows the user to choose the Devon or Cornwall route. Flexibility in a system’s functions is a crucial part of modelling. Now if you have that #FridayFeeling – go and enjoy a cream tea.

an eFFBD showing Cream tea making
National Cream Tea day – eFFBD

Feel free to share our post with #NationalCreamTeaDay

National Sunglasses Day 2017

Annually on June 27 National Sunglasses day commemorates the importance of wearing ultraviolet (UV)-protective  eye-wear #NationalSunglassesDay

It is time to stop viewing Requirements Management through rose tinted spectacles.

The importance of seeing requirements management tools clearly
Rose Tinted Views

If you really believe office tools are up to the job of helping plan and manage your most important developments, you could be looking through rose tinted spectacles.

All too often it is believed that a spreadsheet or word-processor document is sufficient to manage a set of requirements. Only when a project is asked to change a requirement or how they intend to test a feature do things become unstuck.

If a single component is used in a number of places in the project (whether this is a nut or a software module) how easy is it to find all the places that may need attention when the supplier changes the specification?

If something fails, how simple is it to get from the design backwards to the requirement that it was derived from or forwards to the test case that was used to demonstrate it?

Do yourself a favour on National Sunglasses Day 2017 and buy a shiny and bright requirements management tool ! Cradle for all your Requirements and Systems Engineering needs.

 

http://nationalsunglassesday.com/sunglasses/about/

Happy Towel Day 2017

Don’t panic

Wherever you are in the universe, as Douglas Adams wrote, “Don’t Panic”. We all like a bit of comfort and security, and if that means taking a towel with you that’s fine.

Towel Day 2017
Happy Towel Day 2017

However, if you would like the comfort and security knowing you requirements and designs are fully covered, and traceable, may we suggest Cradle might be better?

the answer to life the universe and everything?
The Answer is …..

Celebrate World Telecommunications Day 2017

The aim of World Telecommunications Day is to highlight the importance of communication and how information travels across the world.

The day is closely  connected with the International Telegraph Union (ITU), the committee formed in 1865 to handle the emerging technologies.

We’re celebrating Dual-Tone Multi-Frequency signalling (DTMF). This is in-band signal alongside the normal voice data, between equipment and other devices and usually at the exchange. DTMF was first developed in the Bell System.

Data Structure Diagram illustrating DTMF
DSD showing DTMF signalling tone

Data Structure Diagram (DSD)

DSDs are a graphical alternative to the composition specifications in data definitions. In our model of the DTMF, the signal is shown comprising of the Low Tone and the High Tone. These are  made up of the individual optional low and high tone components.

If you want a teaser for World Telecommunications Day 2017, why is the 1633Hz frequency not shown?

Answer below:

 

 

Continue reading “Celebrate World Telecommunications Day 2017”

Star Wars Day 2017

Set the Context for Universal Domination in a DFD

Happy Star Wars day 2017

Whatever your Systems Engineering tasks you can use diagrams to illustrate the various components. In classic functional modelling the Essential domain shows the operational, theoretical, side of the design, and the Implementation domain models the actual real world components.

Data Flow Diagram DFD showing Cradle Globes as Death Star
Death Star DFD

The Context Diagram shows the entire system or subsystem as one process with the exchanges of information between it and its environment.  In today’s example, this is the ‘Death Star‘ , the external environment being the universe!

From the context diagram a set of hierarchical Data Flow Diagrams (DFDs) give a view of units of functionality and the exchanges of data between these units. So we would expect DFDs covering the Emperor’s Tower, Surface City, Superlaser Focus Lens and so on. So May the Fourth Be With you, and all your modelling.

 

May Day 2017 Madness. Win a copy of Cradle

Cradle Giveaway


WINNER!

@FPreobrazhensky

@baguetteio– Unclaimed prize by 07/06/2017

Congratulations on being selected to receive a copy of Cradle RM Desktop.


#FreebieFriday

#FreebieFriday to win £249* worth of Requirements Management Software

To enter:  Retweet this – 3SL giveaway Tweet and Follow @threesl on Twitter

3SL Cradle RM Desktop Box

The prize consists of one licence for the current version of Cradle RM Desktop. The features of which are defined on our products page. Support is 7 day installation assistance after download.

*The value of the prize is that defined on 01/05/2017 in the Cradle shop.

This is a free to enter draw. Entry is open between 9:00am 01/05/2017 GMT and 23:59 GMT on #FreebieFriday 05/05/2017

The draw will take place on Monday 08/05/2017 before 10:00 eligible entrants must have retweeted and followed @threesl

Terms and Conditions

 

  1. The promoter is: 3SL (Structured Software Systems Ltd.)  Suite 2, 22a Duke Street, Barrow-in-Furness, Cumbria, LA14 1HH UK Registered in England: 2153654
  2. Employees of Structured Software Systems Limited or their registered distributors, or their family members or anyone else connected in any way with the competition or helping to set up the competition shall not be permitted to enter the competition.
  3. Entrants must be 16 years or older.
  4. There is no entry fee and no purchase necessary to enter this competition.
  5. The cost of Tweeting to enter and communications for the winner and downloading software are not covered.
  6. Route to entry for the competition and details of how to enter are via Twitter.
  7. Closing date for entry will be 23:59 GMT on 05/05/2017.  After this date/time no further entries to the competition will be permitted.
  8. No responsibility can be accepted for entries not received for whatever reason. ‘Receipt of entry’ shall be classed entrants showing in the list of @threesl followers on Twitter at the time of the draw and a notification of retweet from Twitter. If there is a doubt as to the timing of these events, the time stamped notification email from Twitter shall be used to decide.
  9. The rules of the competition are described here on the 3SL website and the Tweet shall only be considered as an ‘invite to enter’.
  10. The promoter reserves the right to cancel or amend the competition and these terms and conditions without notice in the event of a catastrophe, war, civil or military disturbance, act of God or any actual or anticipated breach of any applicable law or regulation or any other event outside of the promoter’s control. Any changes to the competition will be notified to entrants as soon as possible by the promoter.
  11. No cash alternative to the prize will be offered. The prize is not transferable. Prize is subject to availability and we reserve the right to substitute any prize with another of equivalent value without giving notice.
  12. A winner will be chosen at random (based on a third party random number generation)  from all entries received and verified by staff of the promoter.
  13. The winner will be notified by a direct Twitter message within 28 days of the closing date. The winners details will be posted on the 3SL Website and via a Tweet and any other social media promotion chosen by the promoter. If the winner cannot be contacted or does not claim the prize within 7 days of notification, we reserve the right to withdraw the prize from the winner and pick a replacement winner.
  14. The promoter will notify the winner how the prize can be downloaded and activated.
  15. The promoter’s decision in respect of all matters to do with the competition will be final and no correspondence will be entered into.
  16. The competition and these terms and conditions will be governed by English law and any disputes will be subject to the exclusive jurisdiction of the courts of England.
  17. The winner agrees to the use of his/her name / (Twitter ID) and image in any publicity material. Any personal data relating to the winner or any other entrants will be used solely in accordance with current UK data protection legislation and will not be disclosed to a third party without the entrant’s prior consent.
  18. The winner’s name (chosen Twitter ID)  will be available 28 days after closing date by sending a stamped addressed envelope to the following address: 3SL (Structured Software Systems Ltd.)  Suite 2, 22a Duke Street, Barrow-in-Furness, Cumbria, LA14 1HH.
  19. Entry into the competition will be deemed as acceptance of these terms and conditions.
  20. This promotion is in no way sponsored, endorsed or administered by, or associated with, Twitter or any other Social Network. Interactions on Twitter are governed by their privacy rules. All other information supplied is to 3SL and not to any other party. The information provided will be used in conjunction with the standard 3SL Privacy Policy.

 

Happy Saint George’s Day 2017

Happy St George’s Day

Wishing all our customers, suppliers and followers a Happy Saint George’s Day 2017 from 3SL.

UML Activity Diagram

In a UML model, the static representation of the system is a set of Class Diagrams (CD). Each class may have an associated Activity Diagram (ACD) to show the internal behaviour and/or algorithm for the class.

ACDs can also be drawn at any level in the UML model, to represent time sequenced behaviour at any level. The activities in the ACDs are intrinsically shareable, such that any given activity can appear on more than one ACD.

Depicting the legend of St George in an ACD
St. George as a UML Activity Diagram (ACD)

OK, we accept there may be a bit of poetic licence going on in this diagram, but it still shows how activity within a class can be represented. If you ever want a reminder of the legend of St. George it may be handy. For more information see the Cradle help section for ACD