Does a guide exist describing how to document a computer network?

A flowchart is described as "cross-functional" when the page is divided into different "lanes" describing the control of different organisational units. A symbol appearing in a particular "lane" is within the control of that organisational unit. This technique allows the analyst to locate the responsibilty for performing an action or making a decision correctly, allowing the relationship between different organisational units with responsibility over a single process.