SourceCode software products are protected by one or more U.S. patents. Other patents pending. SourceCode, K2, the four squares logo, K2 Five, K2 Cloud, K2 blackpearl, K2 SmartForms and Appit are registered trademarks or trademarks of SourceCode Technology Holdings, Inc. in the United States and/or other countries. The names of actual companies and products mentioned herein may be the trademarks of their respective owners.. K2 BPMN Tools Ability to import and export BPMN 2.0 diagrams into K2 Studio and K2 for Visual Studio, supports K2 blackpearl only.. In probability theory and statistics, the beta distribution is a family of continuous probability distributions defined on the interval [0, 1] parametrized by two positive shape parameters, denoted by α and β, that appear as exponents of the random variable and control the shape of the distribution..