Μηχανισμός βέλτιστης διαχείρισης υπηρεσιών υπολογιστικού νέφους βάσει επιχειρηματικών μοντέλων και αναγκών ελαστικότητας
Χέλμης, Νικόλαος Γ.
SubjectCloud computing ; Web services ; Elasticity ; Computer networks -- Scalability ; Επιχειρηματικός προγραμματισμός
Nowadays, interest on Cloud Computing as a technical and business best practice has grown to great length. There is a huge pool of available cloud applications and services offered to end users. As application requirements, reflected to resources requirements (i.e. network, storage, computing capacity), are set by the application provider, a key issue relates to the resulting elasticity needs and their modeling. In addition to elasticity needs, application providers aim to maximize their customer base while considering the associated costs. To this end, business models are needed in order to attract customers while considering cost constraints. Their aim is to optimize the performance of the "investment" for resources compared to the expected number of customers. Nevertheless, the latter is directly linked to the provided quality of service and users' quality of experience. To this direction, in this thesis a mechanism that dynamically maps business models with the planned and estimated resources based on varying needs is presented.