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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
1

Component Placement and Location in a Dynamic Composition System

Sajed Khosrowshahi, Behzad 04 July 2013 (has links)
Using Software-as-a-Service (SaaS), software resides on servers not on user computers. Service Oriented Architecture (SOA) provides the ability to divide an application into parts known as services. This allows enhanced support for distribution, code re-use and code sharing. Combining these ideas, applications can be dynamically composed from components stored at convenient locations in a wide-area network. This benefits users since software installation and upgrades are unnecessary and is also suited to personal devices that may have limited resources (e.g. disk space) to support conventional installed software. I have designed, prototyped, and evaluated component-placement and location algorithms for a system that combines ideas from SaaS and SOA to support on-demand composition of applications that run on user devices from storage sites in the network. These algorithms support mobility and are scalable and reliable. I have implemented a Java prototype and a simulation system that I used to assess my system’s behaviour.
2

Software-as-a-Service Business Intelligence : Adoption Criteria and Business Value

Adelakun, Olawale, Kemper, Thomas January 2010 (has links)
The area of Business Intelligence (BI) is both broad and multifaceted and is becoming an increasingly pervasive tool utilized within organizations allowing them to gain greater insight into their business operations as well as well as the way in which their customers interact with them. By enabling businesses to perform powerful, effective analytics and reporting, BI tools allow them to maximize use of their data and facilitate better planning, forecasting and the ability to have a more targeted and efficient value chain. Usage of BI tools allow organizations to not only achieve but leverage their competitive advantage. SMEs are no different in their pursuit for competitive advantage and market share but often is the case that they lack the resources in order to make the substantial investments into the software and infrastructure required to host a solution on-premise. The Software-as-a-Service (SaaS) model of allowing users to have access to powerful tools and services without having to purchase the solutions or the infrastructure needed to host it on-premise allows SMEs an ideal opportunity to perform many or all of the functionalities that on-premise BI provides. SaaS BI is a relatively new concept only a few years old, but improvements in functionality and features, reliability of service levels and lower costs are allowing it to gain traction and it is projected to increase its momentum in the next few years. The aim of this paper is to investigate the factors that lead to adoption/non-adoption, assigned importance and perceived business value of SaaS BI within SMEs. These issues will be addressed through identification of the key decision criteria that influence SMEs to adopt SaaS BI solutions over an on-premise solution and vice versa. Greater insight into the decision making process, usage and value will be investigated with the cooperation of two vendors within the BI field. A two pronged approach targeting both SaaS and on-premise BI vendors and the users is adopted in order to find out the perspective on either end and whether or not they are incongruent. Semi-structured interviews were targeted at both an on-premise vendor and a SaaS vendor and their customers. A questionnaire was deployed to clients of both these vendors. Analysis was then conducted on the findings using an integrated selection model encompassing BI and SaaS theories and concepts outlined in the paper. 
3

Software-as-a-Service Business Intelligence : Adoption Criteria and Business Value

Adelakun, Olawale, Kemper, Thomas January 2010 (has links)
<p>The area of Business Intelligence (BI) is both broad and multifaceted and is becoming an increasingly pervasive tool utilized within organizations allowing them to gain greater insight into their business operations as well as well as the way in which their customers interact with them. By enabling businesses to perform powerful, effective analytics and reporting, BI tools allow them to maximize use of their data and facilitate better planning, forecasting and the ability to have a more targeted and efficient value chain. Usage of BI tools allow organizations to not only achieve but leverage their competitive advantage. SMEs are no different in their pursuit for competitive advantage and market share but often is the case that they lack the resources in order to make the substantial investments into the software and infrastructure required to host a solution on-premise. The Software-as-a-Service (SaaS) model of allowing users to have access to powerful tools and services without having to purchase the solutions or the infrastructure needed to host it on-premise allows SMEs an ideal opportunity to perform many or all of the functionalities that on-premise BI provides. SaaS BI is a relatively new concept only a few years old, but improvements in functionality and features, reliability of service levels and lower costs are allowing it to gain traction and it is projected to increase its momentum in the next few years. The aim of this paper is to investigate the factors that lead to adoption/non-adoption, assigned importance and perceived business value of SaaS BI within SMEs. These issues will be addressed through identification of the key decision criteria that influence SMEs to adopt SaaS BI solutions over an on-premise solution and vice versa. Greater insight into the decision making process, usage and value will be investigated with the cooperation of two vendors within the BI field. A two pronged approach targeting both SaaS and on-premise BI vendors and the users is adopted in order to find out the perspective on either end and whether or not they are incongruent. Semi-structured interviews were targeted at both an on-premise vendor and a SaaS vendor and their customers. A questionnaire was deployed to clients of both these vendors. Analysis was then conducted on the findings using an integrated selection model encompassing BI and SaaS theories and concepts outlined in the paper.</p><p></p>
4

Component Placement and Location in a Dynamic Composition System

Sajed Khosrowshahi, Behzad 04 July 2013 (has links)
Using Software-as-a-Service (SaaS), software resides on servers not on user computers. Service Oriented Architecture (SOA) provides the ability to divide an application into parts known as services. This allows enhanced support for distribution, code re-use and code sharing. Combining these ideas, applications can be dynamically composed from components stored at convenient locations in a wide-area network. This benefits users since software installation and upgrades are unnecessary and is also suited to personal devices that may have limited resources (e.g. disk space) to support conventional installed software. I have designed, prototyped, and evaluated component-placement and location algorithms for a system that combines ideas from SaaS and SOA to support on-demand composition of applications that run on user devices from storage sites in the network. These algorithms support mobility and are scalable and reliable. I have implemented a Java prototype and a simulation system that I used to assess my system’s behaviour.
5

SaaS : análise de impacto na transformação da investigação e desenvolvimento de produto para serviço

Pinho, Vítor Pedro Figueiredo de January 2009 (has links)
Estágio realizado na Sage Portugal e orientado pelo Eng.º Jorge Santos Carneiro / Tese de mestrado. Engenharia de Serviços e Gestão. Faculdade de Engenharia. Universidade do Porto. 2009
6

SELECTING A START-UP AS SAAS VENDOR : Understanding adoption of software-as-a-service delivered by a start-up

Fahlén, Hannes, Norberg, Albin January 2022 (has links)
Our society is increasingly entangled with, and reliant on software. Previously, software has mainly been operated on-premises, i.e., installed and ran on a physical computer, manually supported, and maintained by individuals at the location where the software is running. Today, software is often delivered via the cloud using a pay-as-you-go subscription service, hosted, and continuously supported by the vendor, i.e., the organization providing the solution. A collective name for this type of solution is “Software-as-a-Service” (SaaS). SaaS is a popular delivery model amongst software start-ups, who are known to be innovative and create valuable new solutions that benefit society. Hence, it can be valuable to help SaaS start-ups understand how most effectively navigate and reach their first customers. This thesis does this by investigating what buyers find important when buying SaaS from a start-up vendor. Technology and innovation adoption has been extensively studied. Theories such as the “TOE-framework” and “Diffusion of Innovation” attempt to explain how the adoption of new solutions is determined and what factors influence it. Moreover, multiple studies have also investigated what affects the decision to buy SaaS. Finally, studies have examined what buyers find important when buying from a start-up. However, no studies have explored what buyers consider when buying SaaS from a start-up vendor. This thesis aims to fulfill the research gap presented above and to answer the following research questions:   What are the determining factors for adoption of Software-as-a-Service delivered by a start-up vendor? How do these determinants affect adoption? To answer the research questions, the study utilizes a deductive approach with elements of induction. Qualitative data is collected in 8 semi-structured interviews, all with a focus on buying organization's SaaS adoption decision. The interview structure is based on the theoretical framework which consists of four major categories that can affect adoption: “Technology”, “Organization”, and “Environment”, of the TOE-framework, and “Vendor Relationship” which is added by the authors of this thesis based on prior studies that suggested this as an important aspect in for the studied context. Within each major category, determinants of adoption, i.e., factors that influence the decision to adopt, are derived from theories specific to SaaS and start-up adoption. The findings confirm all four of the overarching categories of the theoretical framework as important in the decision to adopt SaaS from a start-up vendor. The confirmation of the vendor relationship category can be considered a key finding of the thesis since it is not present in the original TOE-framework or any of the studies on SaaS and start-up adoption. On a more granular level, the thesis highlights the observed adoption determinants under each of the categories and describes how they relate to each other and to existing theory. By answering the research questions, the thesis provides useful insights that can help SaaS start-ups better understand what factors potential buyers consider in their adoption decision. As a result, start-ups can better align their strategy with the wants and needs of buyers and increase the probability of success. Finally, the thesis contributes to theory by expanding knowledge related to the factors determining the adoption of SaaS, when it is delivered by a start-up vendor.
7

Transformace obchodního modelu IT průmyslu směrem k SaaS a její důsledky na roli podnikové informatiky v oblasti Business Intelligence / Transformation of business model IT industry toward SaaS and impacts into role of business informatics in Business Intelligence

Kűfner, Jiří January 2014 (has links)
The theme of this thesis is one of ways, which develops area of Business Intelligence in the last few years. This way are BI systems design on the principle of Cloud computing, also called BI SaaS. This is a cost available solution also suitable for small companies. This work is aimed to acquaint the reader with basic theoretical knowledge in the areas of Cloud computing, Business Intelligence and their connections. Wants to show risks of this technologies and compare between on-premise and cloud BI. In the next step want to offer a practical comparison of selected BI SaaS systems. Finally it aims to create forecast of possible future paths of development in Business Intelligence.
8

Marketing de serviços aplicado a plataforma SaaS de gestão de condomínios

Pinho, Nelson Figueiredo de January 2009 (has links)
Tese de mestrado. Engenharia de Serviços e Gestão. Faculdade de Engenharia. Universidade do Porto. 2009
9

Concepção de uma solução de software as a service : portal de colaborador na Sage Portugal - Software, S.A.

Rodrigues, Pedro Miguel Alves dos Santos January 2009 (has links)
Projecto realizado na Sage Portugal - Software, S. A. e orientado pelo Eng.ª Fernanda Marmelo / Tese de mestrado. Engenharia de Serviços e Gestão. Faculdade de Engenharia. Universidade do Porto. 2009
10

支援多租戶應用程式的SQL語句轉換機制 / A SQL rewriting mechanism for enabling multi-tenant applications

吳定威, Wu, Ding Wei Unknown Date (has links)
軟體即服務(Software as a Service, SaaS)是雲端運算環境下一種新興的服務模式,它的特色是將特定的應用軟體以共享軟硬體資源的方式供眾多的租戶(tenants)使用。因此,如何提供共用且有客制化功能的應用軟體就是SaaS模式的重要成功關鍵。本研究聚焦於資料庫層提供多租戶共用表格但有客制化功能的機制。讓開發人員延續一租戶一資料表的架構為基礎設計資料庫,透過SQL語句轉換機制,將SQL語句轉換為操作共享表格的語句執行,以大幅減化開發人員的工作。本研究包含兩個部份,一是資料綱要對應表(Schema Mapping Table),協助開發人員將單租戶資料庫架構轉換為塊狀表格(chunk table)的共用資料綱要方式;另一個是SQL語句自動轉換工具,透過剖面技術織入JDBC程式集中,在應用系統執行期間,將SQL語句,從一租戶一資料表寫法轉換為共享表格的方式執行。故只需將資料表改為共用架構即可使用,達到提升多租戶系統開發速度並提高資源使用率的目的。 / Software as a service (SaaS) is an emerging service model of cloud computing, which is characterized by providing software that charges on a usage basis over shared hardware and software resources for a large number of tenants to use. Therefore, how to provide shared tables and customization of the applications is an important key to success in the SaaS model. This study focuses on how to enable multi-tenancy on the database layer Developers can extend a private table structure-based application to a shared database one through the proposed SQL rewriting mechanism. This approach can greatly simplify the developer's work. Our approach consists of two parts, first is Schema Mapping Table that helps developers to convert single-tenant database architecture into the chunk table schema; another is SQL statement conversion tools that works by enhancing the JDBC library as an aspect in the AspectJ language. During the execution of the application, a SQL statement is rewritten from the private table based format into chunk table based statement. In this way, we are able to enhance an application with multitenant shared tables that improve resource utilization.

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