Purpose- The number and the variety of photos have grown to a great extent as they can be created anytime, everywhere and spontaneously. Searching for a particular photo file has become a boring, repetitive and tedious activity. The application of an ontology to express the user profile characteristics relation with the narrative, spatial, time and other types of information of the collected photos becomes imperative.Design/methodology/approach -The work presented in our article includes the development of a personal photograph collections ontology (MyOntoPhotos) specialising in documenting the metadata of the topics that end-users prefer mostly to capture with their devices. An extensive survey, among 650 participants, was conducted with the use of an online questionnaire comprised of semi-closed questions, following the Likert scale and the scale category grading.Findings -The ontology created was based on the results of an extensive survey aiming to identify thematic areas of interest, apart from spatial and temporal information, as other similar efforts did in the past. It is mentionable that the survey results proved the majority of the responders selected 22 thematic tags.Originality/value - Based on the research findings an innovative concept for a mobile application is presented, focusing on enhancing end-users photo collections organizing and retrieval functions.
Through the use of different political games, power items of the typology of French and Raven, and leadership style, the leader has to make the right educational decision. When the school is shaken by internal and external conflicts, the school leader is the manager, and he will give constructive solutions to these conflicts to emerge as valuable sources of ideas that will enrich school life. This chapter aims to present both the various political games, as mentioned mainly by Mintzberg, and the entry types in the typology of French and Raven present in educational institutions and the meaning of educational change and conditions for success. Also mentioned is the organizational culture and strengthening through the holistic model of leadership of Pashiardis and Brauckmann emphasizing the concept of “mentorship.” The significance of the work lies in the fact that the undermentioned issues are relevant to educational institutions and require attention from both the leader-director and the teachers of each school unit.
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