Branson's North Carolina Business Directory for 1869 shows that Shelby, in the years immediately following the Civil War, had changed little from the rural county seat economy that it had been throughout the ante-bellum period.
Enterprise Architect provides a platform for the system engineer using the Systems Modeling Language (SysML) and model based development, and in addition to the engineering models the tool provides support for project and process management.
Various tools are used today in the industry to model the behavior of their systems. Numerous modeling tools are available in the market. Some are free, open sourced while other popular tools are built to suit a specific area of interest.