Questions about designing a software scheme

Question

Software and Internet Services

I apologize in advance for perhaps a little incorrectly posed questions, but to be honest, I don’t understand this very well. There are two questions about the design of the scheme, software structure:
1) What are the standards and GOSTs for the design of schemes, software components, their interaction?
2) What is the best way to draw relations and class hierarchy for the application, but without indicating it on the diagram?

Answer 1

1) For the design of schemes, this is GOST 19.701-90 . It replaces the previous GOST 19.002-80 and 19.003-80.
2) I think it's about the class diagram. To denote inheritance (generalization), an arrow with an empty triangle near the super-class is used. Look at the rules for formatting class diagrams in the UML.
Both topics, by the way, are covered in the wiki:
en.wikipedia.org/wiki/Flowchart
en.wikipedia.org/wiki/Class_Diagram

Answer 2

You probably need to dig in the direction of UML ...
class diagram, component diagram (Component diagram), deployment diagram (Deployment diagram)