This research, with the aim of investigating the applied indicators of social
development, has studied the concept of social development at international and
national levels. Considering research purposes and questions, the research method is
descriptive and qualitative which has been carried out in two stages of library and
Delphi technique. The research sample size (Delphi method) consists of 30
academic experts and executive authorities in social development area, who have
been selected randomly. Finally, according to calculation of social indicators,
significance and priority in process of Delphi technique, the concept of social
development was defined and interpreted as the quality of social system through
institutionalization of development ethics, especially “ethics of social development”
in order to achieve “social solidarity (consensus)” and “social equality” for
promoting “life quality level” and enhancing the coefficient of “social security”. In
the end, social development was divided, based on scientific logic of indicatormaking,
into five-fold dimensions as well as sub-dimensions associated with it.
 

Lack of social capital and a threat to the sense of security is synonymous with social deviance. Because social capital reflects the cooperative behavioral norms, lack of social capital will be reflected actual social deviations. In this paper, the relationship between social capital (social particiption, trust, solidarity and social interaction) and social security (with dimensions of intellectual, physical, financial, speech, occupational and judicial) of a sample of 370 male and female students of the university student,s city of zanjan has been studied. Research methodology, quantitative study with questionnaires and relying on multi-stage cluster sampling and simple random. The results showed that the results of the relationship between underlying variables and the average sense of security indicates that the significant difference between men and women feel safe there.