I use sequence and communication diagrams, but I find the other diagramming techniques less applicable to the type of work I do. In the systems I work with most

I use sequence and communication diagrams, but I find the other diagramming techniques less applicable to the type of work I do. In the systems I work with most problems arise from transitions between states and from communication issues between isolated units. I find that static models just end up having to change rapidly throughout the implementation, so I focus on creating APIs and tests instead.