Browsing by Author "Izza, Said"

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    An approach to achieve IT agility by combining SOA with ITSM
    (Inderscience Publishers, 2010) Izza, Said; Imache, Rabah
    Today, service-orientation is considered as a compelling technique for developing agile software systems that best align with business. It is also considered as an important approach for information technology (IT) service management, especially for service delivery and support. However, there is still some confusions and misunderstanding between people as sometimes they are referring to information technology service management (ITSM) services and sometimes to service-oriented architecture (SOA) services. So, the combination of both SOA and ITSM approaches arises. This paper deals with this combination and it provides some principles, policies and models that guide and explain the connections that may exist between the two worlds. Specifically, it provides a service model and governance, which cover the multitude necessary activities for specifying and managing how services are defined and supported within large enterprises
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    Clustering-based urbanisation to improve enterprise information systems agility
    (Taylor & Francis, 2015) Imache, Rabah; Izza, Said; Ahmed-Nacer, Mohamed
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    An enterprise information system agility assessment model
    (2012) Imache, Rabah; Izza, Said; Ahmed-Nacer, Mohamed
    The enterprise strategy is influenced by the environment changes: socio economic, legislative, technology, and the globalization. This makes its Information System more complex and competition increasingly fierce. In order for an enterprise to ensure its place in this hard context characterized by rapid and random changes of the internal and external environments, it must have fast adapting policy of its strategy and drive quickly important changes at all levels of its Information System in order to align it to its strategy and vice versa; that?s, it must always be agile. Therefore, agility of the Enterprise Information System can be considered as a primary objective of an enterprise. This paper deals with agility assessment in the context of POIRE project. It proposes a fuzzy logic based assessment approach in order to measure, regulate and preserve continuously the Information System agility. It also proposes a prototype implementation and an application of the proposed approach to a tour operator enterprise