TODAY'S IT CHALLENGES: QUALITY WEB SERVICES AND SERVICE ORIENTED ARCHITECTURES
Anca Alexandra, Lucia Sandovici, Dan Dumitriu · 2008
World Wide Web-ul evolueaza intr-un mediu care ofera o paleta foarte larga de e-commerce, business-to-business, business-to-consumer si alte servicii bazate pe informatie. In tehnologia Arhitecturii Orientata pe Servicii (SOA), serviciile Web evolueaza intr-o tehnologie care aliniaza sisteme decuplate din mai multe platform, limbaje de programare si aplicatii. Beneficiile imbunatatirii calitatii serviciilor IT cand se folosesc servicii Web si SOA vin cu pretul introducerii unor noi nivele de complexitate in mediile unde aceste servicii sunt prestate. Aceasta complexitate este alcatuita din libertatea de a compune Servicii Web care sa adreseze necesitati cum ar fi calitatea serviciilor, disponibilitatea, securitatea,si costul. Serviciile Web imbinate cu SOA permit o noua paradigma pentru design-ul si operarea aplicatiilor in afaceri. The World Wide Web is evolving into a medium providing a wide array of ecommerce, business-to-business, business-to-consumer, and other informationbased services. In Service Oriented Architecture (SOA) technology, Web Services are emerging as the enabling technology that bridges decoupled systems across various platforms, programming languages, and applications. The benefits of improving IT services’ quality when using Web Services and SOA come at the expense of introducing new level of complexity to the environments where these services are deployed. This complexity is compounded by the freedom to compose Web Services to address requirements such as quality of service (QoS), availability, security, reliability, and cost. Web Services deployed in SOA enable a new paradigm for the design and operation of business applications.