A laboratory prototype of the MDD is available. From its outlook the MDD resembles a mobile phone but has a simplified user interface oriented on the elderly people, disabled people, people with chronic diseases. The laboratory tests are going on : inter-working of the MDD with different types of biosensors over USB and Bluetooth, inter-working of the MDD with external servers over mobile Internet. Preparation of documentation for manufacturing of a number of MDDs for trials. Working on a Knowledge base of diagnostics probability system : definition of a set of physiological parameters needed for diagnostic of diseases listed in the Regulations on the MDD concept selection. Analysis of the features of diagnostic systems available today. Analysis of the existent approaches to the creation of biosensors' networks. Selection of a statistical methods for procession of signals from sensors.