Method for deploying hearing instrument fitting software, and hearing instrument adapted therefor

A method for deploying hearing instrument fitting software wherein the fitting software comprises executable fitting program code configured to process fitting program data on a programmable data processor, wherein the method comprises the steps of

• reading fitting program definition data from data storage means provided in the hearing instrument, wherein the fitting program definition data comprises a description of a network location,
• determining, from the fitting program definition data, at least part of at least one of the fitting program data and the fitting program code,
• loading, from a computer network and according to said description of a network location, at least part of further fitting program definition data to an external device, wherein the description of a network location defines a server, and
• generating fitting software on the external device that is modified in accordance with the further fitting program definition data.