Sandrila SDL

Add-in for Microsoft ® Visio ® 2000/2002/2003/2007/2010/2013/2016/2019 and Visio for Office 365

Create your SDL, MSC, URN, TTCN, UML and UML2 diagrams in Microsoft ® Visio ® quickly and painlessly; even a beginner can create a diagram in just a few minutes.

Sandrila SDL can help you:

  • Create correctly formatted diagrams for all SDL, MSC, TTCN, URN, UML and UML2 diagram types.
  • Import of SDL-CIF (Z.106) and MSC-CIF (Z.120) from other SDL tools. (Pro version only)
  • Import of MscGen format files as MSC or Sequence Diagram. (Pro version only)
  • Analyse states in process diagrams.
  • Syntax check your diagrams.

We have supplied SDL tools and expertise for several years to many Blue Chip companies around the world. Based in Hampshire, United Kingdom, we take pride in providing good value and service to its customers.

SDL - Specification and Description Language
MSC - Message Sequence Charts
TTCN - Testing and Test Control Notation
URN - User Requirements Notation
UML - Unified Modeling Language

SDL is the standard for specifying and designing communicating systems, adopted by the ITU as standards Z.100, Z.109, Z.120, Z.150 and widely used for specifying and designing real-time and telecommunications software systems. SDL-2000 combines UML and SDL-96 into a powerful language for software design and specification.


  • Download it and try it out version (1889kB)

    After downloading, create a folder typically
    "C:\Program Files (x86)\Paul Herber\SDL"
    and unzip into this folder. Copy the address of the folder that the software is installed to, start Visio and paste this path into the 'Add-ons path', 'Template path' and 'Stencils path' as follows:

    • Visio 2000/2002/2003/2007: menu Tools -> Options -> Advanced -> File Paths
      Now restart Visio. Sandrila SDL will be available from the File -> New menu
    • Visio 2010/2013/2016/2019: ribbon File -> Options -> Advanced -> File Locations.
      Now restart Visio. Sandrila SDL will be available from the File -> New menu
  • Example diagrams Download all 33 example diagrams (gif format) in one zip file (270kB).

  • For registered users only:

    Please contact us for the login address.

Sandrila SDL adds this menu to Visio 2000/2002/2003/2007:

added Visio 2003/2007 menu
and this to the Visio 2010/2013/2016/2019 Add-ins menu:

added Visio 2010/2013 menu
Pricing / Buy