Social development is defined as prioritizing human needs in the growth and progression of society. Social development also governs the norms and conventions that govern human interaction. The focus is on improving the lives of regular citizens, especially the poor, to make society a better place for everyone.

Social development is about improving the well-being of every individuals in society so they can reach their full potential

Social development theory attempts to explain qualitative changes in the structure and framework of society, that help the society to better realize aims and objectives. Development can be defined in a manner applicable to all societies at all historical periods as an upward ascending movement featuring greater levels of energy, efficiency, quality, productivity, complexity, comprehension, creativity, mastery, enjoyment and accomplishment.[1] Development is a process of social change, not merely a set of policies and programs instituted for some specific results. During the last five centuries this process has picked up in speed and intensity, and during the last five decades has witnessed a marked surge in acceleration.[2]
The basic mechanism driving social change is increasing awareness leading to better organization. When society senses new and better opportunities for progress it develops new forms of organization to exploit these new openings successfully. The new forms of organization are better able to harness the available social energies and skills and resources to use the opportunities to get the intended results.
Development is governed by many factors that influence the results of developmental efforts. There must be a motive that drives the social change and essential preconditions for that change to occur. The motive must be powerful enough to overcome obstructions that impede that change from occurring. Development also requires resources such as capital, technology, and supporting infrastructure.
Development is the result of society's capacity to organize resources to meet challenges and opportunities. Society passes through well-defined stages in the course of its development. They are nomadic hunting and gathering, rural agrarian, urban, commercial, industrial, and post-industrialsocieties. Pioneers introduce new ideas, practices, and habits that conservative elements initially resist. At a later stage, innovations are accepted, imitated, organized, and used by other members of the community. Organizational improvements introduced to support the innovations can take place simultaneously at four different levels—physical, social, mental, and psychological. Moreover four different types of resources are involved in promoting development. Of these four, physical resources are most visible, but least capable of expansion. Productivity of resources increases enormously as the quality of organization and level of knowledge inputs rise.
Development pace and scope varies according to the stage society is in. The three main stages are physical, vital (vital refers to the dynamic and nervous social energies of humanity that propel individuals to accomplish), and mental.