Made available in DSpace on 2014-06-12T15:53:08Z (GMT). No. of bitstreams: 2 arquivo1900_1.pdf: 3332180 bytes, checksum: 1ce40fb13aa3111c08b7ca61b5a1fbdc (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2009 / A necessidade de informatização dos processos das empresas e a utilização de TI alinhada aos negócios vêm sendo uma das estratégicas de competição mais utilizadas entre as empresas. Essa realidade pode ser bastante visível no setor bancário. Os bancos começaram a investir na idéia do T-Banking, que nada mais é do que utilizar os recursos da TV Digital para oferecer serviços bancários através da TV. Com isso, os bancos se depararam com o problema da usabilidade, ou seja, a partir de agora um dos grandes desafios é fazer com que os clientes consigam utilizar os serviços bancários através de um dispositivo de entrada restrito, neste caso: o controle remoto da TV. Este trabalho apresenta uma solução para a integração de sistemas bancários e comerciais no escopo de pagamentos de contas através da TV Digital. Com a integração, esses serviços de pagamentos devem receber um tratamento de usabilidade, visando à simplicidade do ponto de vista do cliente. Nesse intuito, foi definida e implementada uma arquitetura que realiza essa integração e fornece previamente ao T-Banking as informações necessárias para realização de pagamentos de modo simplificado

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Non-functional properties (NFPs) represent an important facet of service descriptions, especially when a Service Oriented Architecture (SOA) approach is used. An effective SOA service development approach requires the identification, specification, implemen-tation, aggregation, management and monitoring of service-related NFPs. However, at this point in time, NFPs are either not handled at all or handled partially in proprietary ways. The goal of this thesis is to encourage their availability for use. In this thesis, the focus is on the NFPs relevant from the perspective of service consumers, in opposition to the perspective of service providers (or developers) and to multi-perspectives. In other words, the scope covers only the NFPs that need to be pub-lished to help service consumers determine whether a given service is an appropriate one for their needs (e.g., description of NFPs to be attached to the service along with the functionality description). This thesis provides the following contributions to the SOA knowledge base: definition of a domain-independent catalogue comprising 17 NFPs relevant to the descriptions of atomic services from the perspective of service consumers. These NFPs have been derived from a literature review and have been vali-dated via a two-step survey; formalization of NFP representation by defining data structures to enable quantifying and codifying them, together with a corresponding XML schema; definition, implementation and validation of algorithms to aggregate the NFPs of the composite service based on the NFPs of its underlying services, with a discussion of the NFP aggregation limitations; definition of a modeling approach for the NFP-aware selection of services, which involves aspect-oriented modeling with the User Requirements Nota-tion, in the context of SOA; integration of NFP descriptions into the Web Services Description Language (WSDL); and definition and use of the discriminator operator in service composition, to en-able the creation of fault-tolerant composite services. Overall, this work contributes to research by providing better insight on the nature, rele-vance, and composability of NFPs in a service engineering context. As for industrial im-pact, this work contributes a validated collection of NFPs with a concrete syntax and composition algorithms ready to be used for defining, selecting, and composing NFP-driven services and for evolving current SOA-related standards.

V prostředí stále komplexnějších informačních systémů dramaticky rostou nároky na integraci jejich heterogenních částí. Řešení tohoto problému nabízí SOA ? service oriented architecture (architektura orientovaná na služby).

Architektura orientovaná na služby, je přístupem k budování flexibilní a agilní architektury aplikací, která bude schopna v krátkém čase a s nižšími náklady reagovat na změny požadované ze strany businessu. Aby však organizace skutečně v SOA získala zdroj konkurenční výhody, je třeba zaměřit se kromě aplikací a architektury i na jejich správu a řízení IT se zohledněním specifik, které SOA do této oblasti přináší. Mezi hlavní podmínky efektivního provozu SOA patří optimální implementace procesů, organizační opatření a nástroje pro správu a monitoring architektury, aplikací a podpůrné infrastruktury. Předmětem této práce je poskytnutí celkového pohledu právě na roli procesů a nástrojů pro správu architektury orientované na služby a modelový příklad řízení SOA v telekomunikační firmě.

Práce řeší problematiku komplexních a heterogenních informačních systémů. V daném kontextu mapuje aktuální metody systémové integrace a jejich dopady na projekty (řízení, analýza, organizace). Uvedeny jsou základní principy a metody (například transakční princip, třívrstvá architektura atd.), a moderní vývojové a integrační metody (SOA, BPM, BRA, MDA). Dále je pak řešena problematika analýzy a projektového vedení v kotextu těchto principů a metod.

Tato diplomová práce se zabývá problematikou servisně orientované architektury a služeb, které tvoří její základní stavební prvky. Jejím cílem je vymezení způsobu, jakým lze navrhovat jednotlivé podnikové aktivity jako služby, které jsou založeny na podobném principu a disponují stejnými charakteristikami jako služby, které jsou navrhovány na technologické úrovni SOA. Práce je rozdělena do pěti částí. Smyslem prvních čtyřech je vytvoření určitého teoretického základu, který je následně využit pro účely prakticky orientovaného příkladu, který se zabývá identifikací služeb. První část je věnována vysvětlení podstaty a významu enterprise architektury. Na ní navazuje další část, která ze zabývá architektonickými frameworky a jejímž smyslem je popsání charakteristik frameworku NGOSS (New Generation Operations Systems and Software), který je určen pro poskytovatele telekomunikačních služeb. Nástroje tohoto frameworku, kterými jsou datový model eTOM (enhanced Telecom Operations Map) a datový model SID (Shared Information/Data Model) jsou využívány v již zmiňované závěrečné části. Předposlední část práce je věnována teoretickému pojednání o servisně orientované architektuře a službách. Kapitola obsahuje popis procesu zavádění servisně orientované architektury a dále uvádí charakteristiky, kterými by měli služby disponovat. Závěr práce je věnován názornému příkladu, jak přistupovat k identifikaci služeb. V rámci závěrečné části je jednak navrhován postup, jak služby identifikovat na základě podnikových procesů a jednak jsou zde demonstrovány a hodnoceny možnosti využití obou zmiňovaných nástrojů frameworku NGOSS v rámci tohoto postupu

The main purpose of this diploma thesis is to study of possibilities of optical amplification, ways of realization optical amplifiers and construction of operational EDFA amplifier . According to gained information and knowledge about optical amplifiers, the basic configuration of EDFA amplifier with posibility of connecting up to two EDFA modules, which uses erbium-dopped fibers for amplification, was made. There was also developed a 3D model of front control panel of the amplifier and placement of particullar items was planned. Next step was the construction of EDFA amplifier device and measuring of its parameters and features.

The planning work prior to implementing an SOA migration project is very important for its success. Up to now, most of this kind of work has been manual work. An SOA migration planning approach based on intelligent information processing methods is addressed to semi-automate the manual work. This thesis will investigate the principle research question: 'How can we obtain SOA migration planning schemas (semi-) automatically instead of by traditional manual work in order to determine if legacy software systems should be migrated to SOA computation environment?'. The controlled experiment research method has been adopted for directing research throughout the whole thesis. Data mining methods are used to analyse SOA migration source and migration targets. The mined information will be the supplementation of traditional analysis results. Text similarity measurement methods are used to measure the matching relationship between migration sources and migration targets. It implements the quantitative analysis of matching relationships instead of common qualitative analysis. Concretely, an association rule and sequence pattern mining algorithms are proposed to analyse legacy assets and domain logics for establishing a Service model and a Component model. These two algorithms can mine all motifs with any min-support number without assuming any ordering. It is better than the existing algorithms for establishing Service models and Component models in SOA migration situations. Two matching strategies based on keyword level and superficial semantic levels are described, which can calculate the degree of similarity between legacy components and domain services effectively. Two decision-making methods based on similarity matrix and hybrid information are investigated, which are for creating SOA migration planning schemas. Finally a simple evaluation method is depicted. Two case studies on migrating e-learning legacy systems to SOA have been explored. The results show the proposed approach is encouraging and applicable. Therefore, the SOA migration planning schemas can be created semi-automatically instead of by traditional manual work by using data mining and text similarity measurement methods.

Web servisų galimybės geriausiai tinka e. Vyriausybės informacinių sistemų įgyvendinimui. Šiame darbe taikomi tinklo paslaugų architektūros (Service Oriented Architecture (SOA)) principai ir įvairūs standartai, naudojami e. Vyriausybės informacinių sistemų kūrimui, saugiam duomenų perdavimui, informacijos šifravimui. Paslaugų architektūra SOA (angl. Service Oriented Architecture) yra tokia programinės įrangos architektūra, kai vartotojai naudoja programinę įrangą kaip paslaugą, kuri pasiekiama tinkle per realizaciją slepiančius interfeisus. SOA grindžiama visuotinai priimtais de facto standartais, kurie padeda palaikyti vartotojams reikalingus veiklos procesus, susidedančius iš laisvai susietų (angl. loosely coupled) paslaugų. Į vartotoją sutelktas paslaugų vaizdas yra pagrindinė idėja, skirianti paslaugas nuo objektinės orientacijos. Paslaugų informacinės sistemos (angl. Service-oriented Information Systems) sudarytos iš laisvai susietų junglių (angl. Interoperable) paslaugų, kurias valdo vartotojų reikalavimai. Norint veiksmingai projektuoti paslaugas, reikia šiek tiek kitaip modeliuoti: daugiau dėmesio skirti veiklos tikslams, kurti tikslesnius modelius, labiau automatizuoti kūrimo procesą. Pagrindiniai paslaugų elgsenos modeliai yra sąveikos ir būsenų mašinos, pagrindiniai statiniai paslaugų IS modelių elementai yra dalykinės srities duomenų esybės, paslaugų interfeisai ir pranešimai, kuriais keičiasi veiklos dalyviai. Naudojant visas šias technologijas buvo siekiama... [toliau žr. visą tekstą] / Government in every country wants to enhance the quality of their services provided for citizens and business enterprises. However, due to the lack of interoperability, traditional governments and municipalities face serious problems. These are mainly poor quality and high cost of services, and low economical revenues. Lithuania e-government has been proposed for solving these problems by making the interaction between government and citizens (G2C), government and business enterprises (G2B), and inter-agency relationships (G2G) more friendly, convenient, transparent, and inexpensive. E-government unifies different software solutions to provide country citizens and business enterprises easier way to communicate with their government. Web services provide interoperability for different types of applications, and this technology fits very well for developing e-government applications. This document summarizes the development of pension fund G2B software solution which should provide effective and reliable way for Lithuanian Republic Committee of Securities and pension fund governing enterprises to interchange various reports.