The model selection of custom workflow for workflow learning

Background

After graduating for 5 years and doing 4 versions of the workflow framework, workflows are almost the threshold that every enterprise application developer has to cross (I haven't crossed over), let's briefly describe the previous 4 versions, and then focus on the model selected for version 5th.

First year

Model: Sequential flow.

Designer: not supported.

Routing rules: not supported.

Second year

Model: WF3.5 (order, decision).

Designer: not supported.

Routing rules: Support.

Third year

Model: WF4.0 (order, decision).

Designer: Support.

Routing rules: Support.

Four years

Model: State machine (order, decision).

Designer: Support.

Routing rules: Support.