Made available in DSpace on 2014-06-12T15:57:08Z (GMT). No. of bitstreams: 2 arquivo3142_1.pdf: 2136149 bytes, checksum: 9584d05181d7f6e862c757ce418c8701 (MD5) license.txt: 1748 bytes, checksum: 8a4605be74aa9ea9d79846c1fba20a33 (MD5) Previous issue date: 2008 / de Siqueira Teles, Fabrício; Pierre Louis Robin, Jacques. Towards Model-Driven Engineering Constraint-Based Scheduling Applications. 2008. Dissertação (Mestrado). Programa de Pós-Graduação em Ciência da Computação, Universidade Federal de Pernambuco, Recife, 2008.

The thesis deals with an analysis of approach methods, that can be used in integration of SaaS model applications into business information systems. To this end it presents business information systems. Description of these was performed from a general viewpoint. A description of what business information systems are was provided as well as a description of their architecture and service-oriented architecture. Business information sysstems were then described from a development/operation point of view, particular phases of the corelation between business and ICT were summed up, as well as ICT service supply models and development and operation alternatives. At the end of the chapter, a description of business information system components was performed. Services were described in the next chapter - first generally, with special interest in service characteristics and categorization. Furthermore I explored the concept of 'Anything as a Service' (XaaS), providing a summary of what can be provided as a service. Then a distribution model for Software as a Service (SaaS) was described along with its characteristics, parameters, benefits and limitations. At the end of the chapter cloud computing, its characteristics and models of implementation were described and the most notable providers were presented. The next chapter contains a description of integration and is targetted mostly on the description of system integration, on the system integrator as a person, on a description of technological means, usable in the integration itself. The next chapter is dedicated to a description of integration scenarios of business IS using SaaS applications. In the next chapter, an approach to the analysis of integration scenarios is defined, based on various viewpoints. The last chapter contains an assesment of particular integration scenarios and a consequential evaluation performed along evaluation criteria.

Made available in DSpace on 2017-07-21T14:19:26Z (GMT). No. of bitstreams: 1 Giuvane Conti.pdf: 4640595 bytes, checksum: 144683112870e74bdbcd0335c9aac15a (MD5) Previous issue date: 2015-10-29 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / The growth of the smartphone market, combined with the technologies used in these devices, motivates the use of this equipment in field applications because of its georeferencing potential and internet access. In cloud computing, a prominent concept is the Internet of Things (IoT) due to the exponential growth of data where are generated in day-to-day. The idea of centralization of this data, acquired from various areas, such as agriculture, urban mobility, urbanization, government, health, business, etc., are current challenges that the IoT find out to solve. It still in contrast, NoSQL databases, which have some differentiating features from relational models and they have the potential to solve some of these challenges, such as horizontal growth, high data availability and easy storage of complex structures. Another promising technology to solve some of these challenges is the RESTful, a web service that provides faster and works with fewer bytes than the communication with Simple Object Access Protocol (SOAP). In this context, this research was developed with the goal of creating a GIS Mobile application, to collect geospatial data (points, lines and polygons) and store them in an application server, in Software as a Service (SaaS) architecture, using RESTful and NoSQL. The structure follows the concept of IoT, with high potential for integration data from different areas, such as in this study. In this research were performed tests in field at the Fazenda Escola Capão-da-onça (FESCON) on 11 and 13 August 2015. A planning missions, has been pre - set to get the best results from Global Positioning System (GPS). On those dates were collected geo data on crop plots, lines and points of interest, such as erosion areas, failures in the soil and low productivity areas. The samples taken were successful and had no problems or failures, that is, the application provided facility of use and synchronization of the data with the application server. The results of the field surveys, have been exported to files in KML format and presented on thematic maps with the help of Google Earth tool. In conclusion, the project has a high potential for registration of agricultural properties and spatial geo data and, your architecture is relevant for the development of geospatial, agricultural projects in GIS Mobile area, where need to handle complex data and provide high data availability, such as Rural environmental registry (CAR, in brazil); Precision agriculture; Georeferenced control of agricultural, natural resources and urbanization data; and Business logistics applications. / O crescimento do mercado de smartphones, combinado com as tecnologias empregadas nestes aparelhos, motiva seu uso em aplicações a campo devido ao seu potencial de georreferenciamento e acesso a internet. Em computação na nuvem, um conceito proeminente é a Internet of Things (IoT) ou Internet das Coisas devido ao crescimento exponencial de dados que são gerados no dia-a-dia. A ideia da centralização destes dados, provenientes de várias áreas, como: agricultura, mobilidade urbana, urbanização, governamentais, saúde, empresariais, etc., são desafios atuais que a Internet das Coisas procura solucionar. Destaca-se ainda, os bancos de dados NoSQL, os quais possuem potencial para solução de alguns destes desafios. Outra tecnologia promissora para solucionar alguns destes desafios é o padrão RESTful, um web service que apresenta rapidez e trabalha com quantidades reduzidas de bytes em sua comunicação. Neste contexto, esta pesquisa foi desenvolvida com o objetivo de criar um Sistema de Informação Geográfica (SIG) Móvel, que realize a coleta de dados geoespaciais (pontos, linhas e polígonos), se comunique com um servidor de aplicação, no modelo Software as a Service (SaaS) que irá armazenar os dados em um banco de dados MongoDB e sua arquitetura segue o conceito de Internet das Coisas. Foram realizados testes a campo na Fazenda Escola Capão-da-onça (FESCON) nos dias 11 e 13 de agosto de 2015. Um planejamento de missões, foi pré - estabelecido, para obter os melhores resultados do Sistema de Posicionamento Global (GPS). Nas referidas datas foram coletados polígonos em talhões de culturas, linhas e pontos de interesse, tais como áreas de erosão, falhas no solo e áreas de baixa produtividade. As coletas realizadas foram bem sucedidas, o aplicativo proporcionou facilidade de uso e de sincronismo dos dados com o servidor de aplicação. Os resultados, dos levantamentos à campo, foram exportados para arquivos no formato KML e apresentados em mapas, com auxílio da ferramenta Google Earth. Conclui-se que, o projeto apresenta alto potencial de uso para cadastro de propriedades agrícolas e dados espacializados e, sua arquitetura é pertinente para o desenvolvimento de projetos geoespaciais, agrícolas em SIG Móvel, que necessitem tratar dados complexos e apresentem alta disponibilidade de dados, tais como: Cadastro Ambiental Rural (CAR); Agricultura de precisão; Controle georreferenciado de dados agrícolas, recursos naturais e urbanização; e Aplicações empresariais de logística.

Στην παρούσα διατριβή αντιμετωπίζεται το πρόβλημα της παροχής επιστημονικού λογισμικού σαν υπηρεσία διαδικτύου, με έμφαση στις εφαρμογές χρονοπρογραμματισμού ανθρώπινων πόρων. Οι εφαρμογές αυτές χαρακτηρίζονται από ειδικές ανάγκες ως προς το περιβάλλον υλικού και λογισμικού, ανήκοντας στο γενικότερο χώρο των NP-hard προβλημάτων βελτιστοποίησης. Δημιουργήθηκαν και παρουσιάζονται δύο πλατφόρμες παροχής υπηρεσιών, SchedSP και SchedSP-WS, με στόχο να παρέχουν υπηρεσίες λειτουργικού συστήματος στους δημιουργούς εφαρμογών ιστού, ενώ παρέχονται ειδικές υπηρεσίες για την υποστήριξη εφαρμογών χρονοπρογραμματισμού. Η απαιτούμενη υπολογιστική χωρητικότητα εξασφαλίστικε αρχικά από το σύστημα PLEIADES, που επίσης παρουσιάζεται ως πάροχος υπολογιστικής υποδομής σαν υπηρεσιά, το οποίο αργότερα αντικαταστάθηκε από την υποδομή του ευρωπαϊκού έργου υποδομής EGEE. Επίσης, παρουσιάζεται ένα μοντέλο κατανεμημένης εφαρμογής χρονοπρογραμματισμού, το οποίο αποτελεί τη βάση του πλαισίου SchedScripter. Το πλαίσιο SchedScripter που επίσης παρουσιάζεται, επιτρέπει τη δημιουργία κατανεμημένων εφαρμογών χρονοπρογραμματισμού, βασισμένων στο υπολογιστικό πλέγμα. / This PhD dissertation deals with the provision of scientific software as Internet service, with emphasis on human resources scheduling applications. These applications have special needs from the computational environment, in terms of software and hardware, as they are NP-hard optimization problems. Two application service provider platforms have been created and presented, SchedSP and SchedSP-WS, aiming to offer operating system like services to web application developers, while they offer special support for scheduling applications. The required computational capacity initially was provided by PLEADES, which is also presented as a computational infrastructure service provider, to be substituded later by the EU infrastructures project EGEE. A distributed scheduling application model is presented, which is the foundation of the SchedScripter framework. The SchedScripter framework, which is also presented, enables the creation of distributed scheduling applications, running on a computational grid.

Made available in DSpace on 2016-06-02T19:06:22Z (GMT). No. of bitstreams: 1 6616.pdf: 3224245 bytes, checksum: 3bea5c064e483543e0961a78c51613d2 (MD5) Previous issue date: 2014-10-20 / Software as a Service (SaaS) represent a form of software distribution on demand and accessible via the Internet. The development of SaaS enables service users (tenants) to benefit from the low cost of deployment and maintenance. The Multi-Tenant (MT) architecture is often used in the development of SaaS, it allows the sharing of software and hardware resources, providing cost savings to the costumers and the service provider. A challenge that the SaaS developer has is to keep sharing the instance of the software in scenarios with tenants who have differing needs. In this project, to address the variability of tenants in SaaS MT were set some patterns, based on Software Product Lines techniques for customizing user interfaces, data, processes and permissions. A framework called FoSaaS (Framework of Software as a Service) has also been developed to support the use of patterns, providing support to developers in SaaS MT coding. In addition to allowing the customization of SaaS MT, experiments in this project indicated that patterns improve reuse, quality and productivity in developed SaaS MT. The applicability of the patterns was evidenced through real projects in developing commercial applications. / Softwares como um Serviço (SaaS) representam uma forma de distribuição de software sob demanda e acessíveis via Internet. O desenvolvimento de SaaS possibilita aos consumidores do serviço (tenants) se beneficiarem do baixo custo de implantação e manutenção. A arquitetura Multi-Tenant (MT) é frequentemente utilizada no desenvolvimento de SaaS, pois permite o compartilhamento de recursos de software e hardware, proporcionando a redução de custos ao consumidor e ao fornecedor do serviço. Um desafio que o desenvolvedor de SaaS tem é o de manter o compartilhamento da instância do software em cenários com tenants que possuem necessidades divergentes. Neste projeto, para tratar a variabilidade dos tenants em SaaS MT foram criados alguns padrões, com base em técnicas de linhas de produtos de software, para customização de interfaces de usuários, dados, processos e permissões. Um framework denominado FoSaaS (Framework of Software as a Service) também foi desenvolvido para apoiar o uso dos padrões criados fornecendo apoio aos desenvolvedores na codificação de SaaS MT. Além de permitir a customização de SaaS MT, experimentos realizados neste projeto indicaram que os padrões melhoram o reúso, a qualidade e a produtividade dos SaaS MT desenvolvidos. A aplicabilidade dos padrões foi evidenciada por meio da realização de projetos reais no desenvolvimento de aplicações comerciais.

Cloud Computing (CC) is one of the fast growing computer network technologies and many companies offer their services through cloud network. Cloud Computing has many properties with respect to the existing traditional service provisions like scalability, availability, fault tolerance, capability and so on which are supported by many IT companies like Google, Amazon, Salesforce.com. These IT companies have more chances to adapt their services into a new environment, known as Cloud computing systems. There are many cloud computing services which are being provided by many IT companies.The purpose of this thesis is to investigate which cloud environment (public, private and hybrid) and services (Infrastructure as a Service, Software as a Service, and Platform as a Service) are suitable for Swedish Armed Forces (SWAF) with respect to performance, security, cost, flexibility and functionality. SWAF is using private (internal) cloud for communications where both sensitive and non-sensitive information are located in the internal cloud. There are problems like maintenance of hardware, cost issues and secure communication while maintaining the private cloud. In order to overcome those problems we have suggested a hybrid and community cloud environment and SaaS, IaaS, PaaS services for SWAF.For suggesting these cloud environments and cloud services we have performed a literature study and two empirical studies (survey and interviews) with different organizations.A new cloud model is designed based on the suggested cloud environment, separate storage spaces for sensitive and non-sensitive information, suitable services and an effective infrastructure for sharing the internal information for SWAF.

企業電子化的概念在過去幾年已被大多數企業所接受，但對台灣佔多數的中小企業而言，因為系統開發非其核心競爭力且IT資源有限，如何尋求一個解決方案，能夠讓這些為數眾多的中小企業取得所需的資訊應用能力，是當前的一個重要課題。 服務導向架構概念的提出，提供了許多企業一個進行系統整合的解決方案。但我們不應僅從系統整合來看服務導向架構；反而應該從企業本身的策略來看這個解決方案，必須去思考企業要提出怎麼樣的服務或產品才能滿足消費者，再由這些服務或產品去思考應該如何去整合企業內部或外部的資源。 本研究將服務導向架構運用在產業交易金融之服務，從企業內部擴展到企業外部，並提出一個跨組織服務導向架構的整合平台，中小企業可透過企業服務總管充份並輕易的取得平台業者端服務庫上所提供的資訊服務，讓中小企業一方面可以專注於其本身的核心競爭力；另一方面又能取得企業電子化的優勢。而平台業者可運用其系統開發能力，服務為數眾多但對軟體開發能力較小的中小企業，以少量多銷的服務模式來提昇其獲利。 最後，本研究根據上述結論，對金融服務業者與企業提出相關建議，以及未來進一步研究之議題。 / Most enterprises adopt the concept of electronic business in the recent years. Since the system development is neither the competitiveness of core business nor the capacity for IT resources, seeking for a solution of on-demand IT application is a very important topic for most small-medium enterprises (SME). The emergence of Service-Oriented Architecture (SOA) provides a solution of system integration for many enterprises. However, we should not view the system integration only as the aspect of Service-Oriented Architecture. We should think that how enterprises offer better services or products in order to satisfy customer demands. Then, based on these services or products, we go further to think about the system integration of the internal and external resources for the enterprise. In sum, the solution of SOA should be based on the enterprise strategy. This research will apply SOA in the section of enterprise transaction and finance services. From the internal to external corporations, this research proposes an integrated platform of SOA “cross organization and business process management”. For small-medium enterprises, they could fully and easily utilize the IT services in the service warehouse from IT service providers. As a result, SME could concentrate on the competitiveness of core business. On the other hand, enterprise could obtain the advantage of electronic business. For IT service providers, they could make use of their capacity of system development to service many SME who have less ability of software development. Moreover, IT service providers could increase profit of the model for less production but more sales. In the end, this research will recommend some solutions for financial service providers and enterprises based on above mentioned conclusion, and also address further research topics in the future.