(f) Organised Efforts: Co-operation is a process of social interaction which is based on the organized efforts of individuals and groups. Type of Co- Operation: Different Sociologists have classified co- Operation in different some of the important types of co- operation are the following. Let us discuss these types of co- operation one by one. (a) Direct Co-operation: In the process of Co-operation when individuals and groups co-operate directly with each other, that is called direct co-operation. There exists direct relationship among individuals and the groups. It permits the people to do like things together because the nature of work itself calls for the participation of men or groups in a together situation. It brings social satisfaction. It makes the difficult tasks easy. Ex: Travelling together, playing together, worshipping together are few important examples of direct co-operation. (b) Indirect Co-operation: In the process of co-operation when people do things individually and indirectly for the achievement of common goal that is called indirect-co-operation. Here the goal is one or common, but the individuals perform specialized function for its attainment. This cooperation is based on the principles of division of labor and specializations of functions. So in modern society indirect co-operation plays important role as the present technological age requires specialization of skills and functions. Ex: In a factory or industry all the workers do separate job to produce common things. In an another example, the construction of a building or house is possible as the carpenters, plumbers and masons are engaged in different activities.