This is an upgrade of the Skype For Business intranet chatbot developed using Dotnet Core v2.2 & Bot SDK V4 (previous one was developed using .Net Standard & Bot SDk V1).
Dotnet Core is an open source, cross platform successor to .NET Framework. It has baked in dependency injection (DI) software design pattern, which is a technique for achieving Inversion of Control (IoC) between classes and their dependencies. Beginners tutorial on dependency injection is a good start for beginners to understand DI before going into Dotnet Core & the SFB Intranet bot.