<p>This essay deals with the issue how to define the concept successful school and what ingredients it includes. To aim this task I have interviewed four principals at upper secondary schools, two placed in community schools and the other two working for non-community schools. We have discussed how the principals define a successful school, whether they believe that the principal has a major part in contributing to the schools success or not and further if they think that schools have anything in common with private companies.</p><p>The principals all agreed on what components they believe a successful school consists of, that is good school results from the pupils, a high comfort level for the pupils at school, professional management from the principal and a high level of young people who wants to attend the particular school.</p><p>Further I have studied Swedish and foreign research in the area of successful schools and management in schools to get at good background in this matter.</p>

This essay deals with the issue how to define the concept successful school and what ingredients it includes. To aim this task I have interviewed four principals at upper secondary schools, two placed in community schools and the other two working for non-community schools. We have discussed how the principals define a successful school, whether they believe that the principal has a major part in contributing to the schools success or not and further if they think that schools have anything in common with private companies. The principals all agreed on what components they believe a successful school consists of, that is good school results from the pupils, a high comfort level for the pupils at school, professional management from the principal and a high level of young people who wants to attend the particular school. Further I have studied Swedish and foreign research in the area of successful schools and management in schools to get at good background in this matter.

The purpose of the study is to acquire knowledge and understanding of successful school development, with a focus on students' cognitive abilities. The survey focuses on the implementation of development work and its effects on the organization and students' development. The theoretical framework is based on special educational perspectives, salutogenic perspective and organizational theory. Two contiguous preschool class‑third grade schools are included in the study and primary data consists of interview responses from school staff. The study also includes questionnaire responses from guardians of children in third grade. However, the response rate from the guardians is insufficient for conclusions. The results show that school development changed the view of students' differences and needs. Furthermore, the schools have shifted their focus to group and organizational level, as well as to more promotional and preventive work. Fewer students are included in the student health team and the number of action plans has decreased. The development of the schools is characterized by a shift towards a more critical perspective and has been conducted through strengthened meaningfulness in the form of defined values, consensus in purpose and vision and collegial cooperation. The conditions that enable successful school development are characterized by a strong sense of coherence, in both leadership and conditions. Increased focus on the environment, as well as enhancement of comprehensibility, manageability and meaningfulness, are also factors that have benefited students' development. Factors that hinder school development can be traced to a compensatory and dilemma perspective, as well as to a lack of sense of coherence. Above all concerning attitudes among school staff and external demands placed on the school activities. Our conclusion is that both school development and students' cognitive abilities can be promoted through the application of a salutogenic perspective.