Aggregate Worker, socially combined individual working capacities based on the concrete historical types of cooperation and division of labour. Two aspects should be distinguished in the idea of aggregate worker: the general economic content and the socio-economic form. The essence of the first aspect is the transformation of the individual producer, who manufactures a product from beginning to end and often is involved in its path all the way to the user, into a member of a production personnel organised so that the closeness of its each participant to the immediate operations with the object of labour itself varies (see Karl Marx, Capital, Vol. I, pp. 476- 77). The second aspect characterises social relations among members of the production personnel (within production sections and the entire economic system), which are moulded according to the existing forms of ownership of the means of production. The first appearance of the aggregate worker is associated with simple capitalist cooperation, that is, the organisation of labour which combines many workers in one labour process, or in varied, but linked 11 labour processes supervised by the capitalist. Here the existing instruments of labour permit, rather than impose, the combining of individual working capacities. It is capitalist private ownership which becomes the key condition for the advent of the aggregate worker. The creation of the aggregate worker under capitalism occurs in the form of antagonisms innate in this social system. Private ownership of the means of production narrows the possibilities for the cooperation of labour and for the aggregate worker. The increasing fragmentation of the production process and the established technical division of labour have a negative effect on the development of the worker, society’s chief productive force, which runs contrary to the requirements of the scientific and technological revolution, which stipulates the universality of knowledge. There is a difference in principle between the content and form of the aggregate worker in socialist environment and those in bourgeois society. Meanwhile, as society advances towards communism, the scope and nature of cooperation and the division of labour change, which produces a change in the aggregate worker. The decisive factor in moulding the aggregate worker at the highest stage of communism, which is "...a community of free individuals, carrying on their work with the means of production in common, in which the labour-power of all the different individuals is consciously applied as the combined labour-power of the community" (Karl Marx, Capital, Vol. I, pp. 82-83), is the radical transformation of the material foundation of labour on the basis of the scientific and technological revolution. The material and technical buse of communism requires a work force with even higher cultural and technical standards, able to handle a totally automated system of production. The scientific and technological revolution influences the material production in a way that the share of mental labour is rapidly growing, as is the share of professions and skills related to industrial design and organisation; the balance between the professional groups is significantly changed; new professions, linked to the most modern trends of technological development, are growing. Depending on the revised professional and skills structure of the aggregate worker, social and production relations between the workers become more sophisticated, and the supreme level of collective principles matures—that of communism.