SBML is a popular way to exchange computational models between tools. However, SBML is not a simple format to read. Give the frequency that SBML is read by simulation tools, SBW provides a module (NOM - network object model - based on Ben Bornsteins libSBML) that allows developers to easily incorporate SBML support into their own tools by providing an easy to use API. The figure below shows a screenshot from the SBW Inspector which lists the methods in the API. Note the last two methods which provide an easy means to move between infix (standard format in all simulators) and MathML (the standard format in SBML)