However, CBTs pose some learning challenges as well. Typically the creation of
effective CBTs requires enormous resources. The software for developing CBTs (such as
Flash or Adobe Director) is often more complex than a subject matter expert or teacher is able to use. In addition, the lack of human interaction can limit both the type of content that can be
presented as well as the type of assessment that can be performed. Many learning
organizations are beginning to use smaller CBT/WBT activities as part of a broader online
learning program which may include online discussion or other interactive elements.