Ever since agile software development was introduced in the millennium shift, it has become a controversial software engineering topic with practitioners and researchers arguing about the benefits of it. The opinions have been widely divergent, on one side the supporters of the plan-driven predictable Software Process Improvement (SPI) embracing repeatable processes and continuous improvements, and on the other the agile development putting individuals and interactions over process and tools, working software over comprehensive documentation, customer collaboration over contract negotiation and change response over comprehensive plans.In this article, the agile methodology is examined from the human and cultural points of view. The concept of culture is analysed for deeper understanding of human and cultural dynamics influencing the agile professional culture. Parallels are drawn to success factors identified in recognised management approaches, such as the Effective Technical and Human Implementation of Computer Systems (ETHICS) and Total Quality Management (TQM).The type of organisation, suitable to embrace the agile professional development culture, is identified by examining the success factors observed. The democratic type of organisation in the C.HI.D.DI. (Clan-HIerarchical-Democratic-DIsciplined) typology is proposed to be the most suitable to create and sustain added business value and competitive advantage for agile software development. IS quality requires knowledge of different organisational and national cultures, the methods and tools used, the way they are used and, most importantly, the way people perceive quality and quality assurance. ACKNOWLEDGEMENTThis work is funded by the Greek Ministry of Education (25%) and European Union (75%) under the EPEAEK II program 'Archimedes II'.

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Social media have become an integral part of everyday life and are used in numerous domains. Hence, it is essential to comprehend how and why users use and engage themselves in social media. Personality traits are patterns of thinking, feeling or behaving that could potentially affect an individual’s social media use. This paper aims at enhancing the understanding of the role that personality traits play in the psychological dynamics underlying social media use and engagement. Therefore, this paper conducts an extensive literature review regarding personality, trait theory and personality traits taxonomies and puts emphasis on Big Five Personality Traits – Five Factor Model (FFM). Furthermore, it presents a literature review of recent studies regarding the impact of personality traits on social media use and compares their results. Based on the findings, there is a close interconnection between social media use and engagement and personality traits with some traits affecting it more drastically. Openness and extraversion emerged as the two most significant positive predictors of social media use while conscientiousness, agreeableness and neuroticism were also considered important but at a lesser degree. Consequently, it was concluded that personality traits have an immense impact on social media use and engagement.

Social media adoption in higher education 63 activities based on social media, followed by the role of social influence. Based on the analysis, guidelines for planning social-media-based learning activities are proposed. Indications of further work complete the paper.