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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.
81

Digital curation of records in the cloud to support e-government services in South Africa

Shibambu, Badimuni Amos 05 January 2021 (has links)
Many scholars lament of poor infrastructure to manage and preserve digital records within the public sector in South Africa to support electronic government (egovernment). For example, in South Africa, the national archives’ repository and its subsidiary provincial archives do not have infrastructure to ingest digital records into archival custody. As a result, digital records are left to the creating agencies to manage and preserve. The problem is compounded by the fact that very few public sector organisations in South Africa have procured systems to manage digital records. Therefore, a question is how are digital records managed and stored in these organisations to support e-government? Do public organisations entrust their records to the cloud as an alternative storage given the fact that both physical and virtual storages are a problem? If they do, how do they ensure accessibility, governance, security and long-term preservation of records in the cloud? Utilising the Digital Curation Centre (DCC) Lifecycle Model as a guiding framework, this qualitative study sought to explore digital curation of records in the cloud to support e-government services in South Africa with the view to propose a framework that would guide the public sector to migrate records to the cloud storage. Semi-structured interviews were employed to collect data from the purposively selected Chief Information Officers in the national government departments that have implemented some of the electronic services such as the Department of Arts and Culture, Department of Home Affairs, Department of Higher Education and Training and the Department of Basic Education. Furthermore, the National Archives and Records Services of South Africa was also chosen as it is charged with the statutory regulatory role of records management in governmental bodies. So is the State Information Technology Agency (SITA), a public sector ICT company established in 1999 to consolidate and coordinate the state’s information technology resources in order to achieve cost savings through scale, increase delivery capabilities and enhance interoperability. Interview data were augmented through document analysis of legislation and policies pertaining to data storage. Data were analysed thematically and interpreted in accordance with the objectives of the study. The key finding suggests that although public servants informally and unconsciously put some records in the clouds, government departments in South Africa are sceptical to entrust their records to the cloud due to a number of reasons, such as lack of policy and legislative framework, lack of trust to the cloud storage, jurisdiction, legal implications, privacy, ownership and security risks. This study recommends that given the evolution of technology, the government should regulate cloud storage through policy and legislative promulgation, as well as developing a government-owned cloud managed through SITA in order for all government departments to use it. This study suggests a framework to migrate paperbased records to cloud storage that is controlled by the government. / Information Science / D.Lit. et Phil. (Information Science)
82

SaaS-baserade affärsmodeller : Utvecklingen av en SaaS-baserad affärsmodell och dess fundamentala komponenter / SaaS Business Models : The Development of a SaaS Business Model and its Fundamental Components

Kamil, Maryam, Nordenback, Isak January 2023 (has links)
Digital teknik används alltmer av företag för att utveckla sina erbjudanden, och framstegen inom området har haft en betydande inverkan på att företag omprövar och förändrar sina affärsmodeller. En viktig teknologi inom detta område är molntjänster (eng. Cloud Computing), som möjliggör lagring och tillhandahållande av information som en tjänst via internet. Inom molntjänster finns olika tjänstemodeller, och en av dem är Software-as-a-Service (SaaS). SaaS utgör en tredjedel av den totala mjukvarumarknaden och förväntas fortsätta växa inom industrin för internetbaserad mjukvara och tjänster. SaaS har potentialen att främja transformationen av affärsmodeller genom att introducera en ny logik för att skapa, leverera och fånga värde. För att lyckas med användningen av SaaS behöver tjänsteleverantören implementera och införa nya affärsmodeller. Trots att många företag strävar efter att utveckla digitala tjänster, upplever många företag svårigheter med att skapa verkligt kundvärde med sina digitala tjänster. Dessutom möter företagen utmaningar när det gäller att generera en lönsam intäktsström och bedöma vilken intäktsmodell som är lämpligast för tjänsten. Med grund i detta formulerades studiens syfte: att undersöka hur ett företag kan styra affärsmodellens utveckling mot ett SaaS-baserat erbjudande. En litteraturstudie genomfördes inom områdena affärsmodeller och affärsmodellsinnovation. I denna studie betraktas affärsmodellen som en modell bestående av tre komponenter: skapa, fånga och leverera värde, där varje komponent byggs upp av aktiviteter. Baserat på dessa teoretiska områden utvecklades en analysmodell. I litteraturstudien presenteras även tjänstefiering och digital tjänstefiering för att ge förståelse för drivkraften och relevansen av molntjänster. Studien utfördes som en flerfallsstudie av åtta företag som erbjuder en SaaS-lösning. Dessa företag är verksamma inom olika branscher och befinner sig på olika stadier i utvecklingen av sitt SaaS-erbjudande. Empirisk data samlades in genom 15 semistrukturerade intervjuer, där respondenterna var personer med relevant kompetens inom studieområdet. Studien visade att kunderna spelar en central roll i utvecklingen av affärsmodellen för en SaaS-baserad lösning. Kunden har särskild betydelse i de tidiga faserna av affärsmodellens utveckling, och deras påverkan på styrningen av affärsmodellens utveckling är av stor vikt. När det gäller affärsmodellens komponenter framkom det att komponenten för att fånga värde spelar en betydande roll i styrningen av affärsmodellens utveckling. Vidare har studien visat att mognadsgraden och vidareutvecklingen av affärsmodellens komponenter sker i en särskild ordning (skapa värde→leverera värde→fånga värde), där företagets mognadsgrad styr vilken affärsmodellskomponent deras utvecklingsaktiviteter fokuseras på. Studien visade också att utvecklingsprocessen mot en SaaS-baserad affärsmodell är en iterativ process, där det är svårt att undvika behovet av att aktivt iterera affärsmodellen mot kunder för att fortsätta utveckla den. / Digital technology is increasingly being used by companies to develop their offerings, and advances in the field have had a significant impact on businesses reconsidering and changing their business models. One important technology in this area is cloud computing, which enable the storage and provision of information as a service over the internet to customers. Within cloud services, there are different service models, and one of them is Software-as- a-Service (SaaS). SaaS accounts for one-third of the total software market and is expected to continue growing in the industry of internet-based software and services. SaaS has the potential to promote the transformation of business models by introducing a new logic for creating, delivering, and capturing value. To succeed in the use of SaaS, the service provi- der needs to implement and adopt new business models. Despite many companies striving to develop digital services, many of them struggle to create real customer value with their digital services. Additionally, companies face challenges in generating a profitable revenue stream and choosing the appropriate revenue model for their service. Based on this, the following purpose of the study was formulated: to investigate how a company can steer the development of its business model towards a SaaS-based offering. A literature review was conducted in the areas of business models and business model innovation. In this study, the business model is considered as a model consisting of three components: creating, capturing, and delivering value, where these components consist of activities. Based on these theoretical areas, an analytical model was developed. The litera- ture review also presents servitization and digital servitization to provide an understanding of the driving force and the relevance of cloud services. The study was conducted as a multiple case study of eight companies offering a SaaS so- lution. These companies operate in different industries and are at different stages in the development of their SaaS offering. Empirical data was collected through 15 semi-structured interviews, where the respondents were individuals with relevant expertise in the study area. The study showed that customers play a central role in the development of the business model for a SaaS-based solution. Customers have particular significance in the early stages of business model development, and their influence on the development of the business model is of great importance. Regarding the components of the business model, it emerged that the value capture component plays a significant role in guiding the development of the business model. However, the study has shown that the maturity and further develop- ment of the business model components occur in a specific order (value creation→value delivery→value capture), where the company’s maturity level determines which business model component their development activities focus on. The study also demonstrated that the development of a SaaS-based business model is an iterative process, where companies need to actively iterate their business model with customers to continue its development.
83

Systém pro automatickou správu serverů / System for Automated Server Administration

Pavelka, Martin January 2019 (has links)
The goal of this diploma thesis is to design the user interface and implement the information system as a web application. Using the custom implemented library the system communicates with GraphQL server which manages the client data. The thesis describes possible solutions for physical servers automatization. The application provides the application interface to manage virtual servers. Automatization is possible without human interaction. Connection to the virtualization technologies is handled by web interface APIs or custom scripts running in the virtual system terminal. There is a monitoring system built over project components. The thesis also describes the continuous integration using Gitlab tools. Running the configuration task is solved using the Unix CRON system.
84

Jämförelse av cache-tjänster: WSUS Och LanCache / Comparison of cache services: WSUS and LanCache

Shammaa, Mohammad Hamdi, Aldrea, Sumaia January 2023 (has links)
Inom nätverkstekniken och datakommunikationen råder idag en tro på tekniken nätverkscache som kan spara data för att senare kunna hämta hem det snabbare. Tekniken har genom åren visat att den effektivt kan skicka den önskade data till sina klienter. Det finns flera cache-tjänster som använder tekniken för Windows-uppdateringar. Bland dessa finns Windows Server Update Services (WSUS) och LanCache. På uppdrag från företaget TNS Gaming AB jämförs dessa tjänster med varandra under examensarbetet. Nätverkscache är ett intressant forskningsområde för framtida kommunikationssystem och nätverk tack vare sina fördelar. Likaså är uppgiften om att jämföra cache-tjänsterna WSUS och LanCache intressant i och med det öppnar upp insikt om vilken tjänst är bättre för företaget eller andra intressenter. Både forskningsområdet och uppgiften är viktiga och intressanta när användare vill effektivisera användningen av internetanslutningen och bespara nätverksresurser. Därmed kan tekniken minska nedladdningstiden. Till det här arbetet besvaras frågor om vilken nätverksprestanda, resursanvändning och administrationstid respektive cache-tjänst har, och vilken cache-tjänst som lämpar sig bättre för företagets behov. I arbetet genomförs experiment, som omfattar tre huvudmättningar, och följs av en enfallstudie. Syftet med arbetet är att med hjälp av experimentets mätningar få en jämförelse mellan WSUS och LanCache. Resultatet av arbetet utgör sedan ett underlag för det framtida lösningsvalet. Resultaten består av två delar. Den första visar att båda cache-tjänsterna bidrar till kortare nedladdningstider. Den andra är att LanCache är bättre än WSUS när det gäller nätverksprestanda och resursanvändning, samt mindre administrationstid jämfört med WSUS. Givet resultat dras slutsatsen att LanCache är cache-tjänsten som är mest lämpad i det här fallet. / In the field of network technology and data communication, there is a current belief in the technology of network caching, which can store data to later retrieve it more quickly. Over the years, this technology has proven its ability to efficiently deliver the desired data to its clients. There are several caching services that utilize this technology for Windows updates, among them are Windows Server Update Services (WSUS) and LanCache. On behalf of the company TNS Gaming AB, these services are compared to each other in this thesis. Network caching is an interesting area of research for future communication systems and networks due to its benefits. Likewise, the task of comparing the cache services WSUS and LanCache is interesting as it provides insights into which service is better suited for the company or other stakeholders. Both the research area and the task are important and intriguing when users seek to streamline the use of their internet connection and conserve network resources. Thus, the technology can reduce download times. For this work, questions about the network performance, resource usage, and administration time of each cache service are answered, as well as which cache service that is better suited to the company's needs. The work involves conducting experiments, including three main measurements, followed by a single case study. The purpose of the work is to compare WSUS and LanCache using the measurements from the experiment. The outcome of the work then forms a basis for future solution choice. The results consist of two parts. The first shows that both cache services contribute to shorter download times. The second is that LanCache outperforms WSUS in terms of network performance and resource usage, and also requires less administration time than WSUS. Given the results, the conclusion is drawn that LanCache is the most suitable caching service in this case.

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