All information obtained from a patient in the course of medical care
is a potential part of clinical documentation. The documentation usual
ly serves a number of different purposes. The task of a documentation
system is to fulfil these purposes in a methodically correct manner an
d as economically as possible. This requires that the properties of th
e documentation system be planned systematically with a view to the go
als pursued. To support systematic planning, a ''documentation protoco
l'' is proposed analogous to the ''study protocol'' used for controlle
d clinical trials. The individual sections of the proposed documentati
on protocol are described and the design options which exist in the co
rresponding planning phases are pointed out. Experience gained by the
application of the documentation protocol is discussed.