We have 3 different systems which exchanges data on a regular basis. There are Some standard mappings between fields (Ex: field Category= A or B depending on input).Indirect mappings between fields. (Ex: field Prio= A or B depending on input along severity)Filling Mandatory  fields (Ex: Summary)Standard Workflows.Indirect workflows.Some specific functional and non-functional requirements.Writing as text is too much as it has only long textual data. I am wondering how we could write such requirements? User stories?Thanks
What best way to document the requirements?
requirements