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Cloud computing

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For me, cloud computing is defined as the use of IT infrastructure to make IT resources available flexibly via the Internet. In the meantime, more and more companies are using the option of storing data on the Internet using dynamic resources (cloud). According to a study by the Bitkom (Cloud Monitor) 70% of the 500 companies surveyed already use cloud applications today. Most common use case: storage of data and files A common use case is the storage of data on the cloud, whereby data protection and data availability play a special role. In particular, according to the study, despite the concerns, more and more secret and even sensitive data is being stored in the cloud. The types of data are: Non-critical information (81%), Data worth protecting (57%) and Secret information (33%). The survey data show that companies are increasingly storing more data in the cloud and also significantly more…

More and more companies are using technologies and are constantly expanding them with individual functions that increasingly support processes in companies. The data obtained in this way are often worth protecting and critical for the company. The non-transparent storage of the data therefore creates a risk for companies. As early as in the coalition agreement, the governing parties commit themselves to preserving and regaining technological sovereignty. The focus is on alternatives to current US providers, which often offer cloud and software solutions without sufficient transparency. Due to the fact that we will become more and more dependent on technologies in the future, the sovereignty over their administration should lie in the hands of the German entrepreneurs. This article shows current risks in the cooperation with large US providers and explains the use of open source software as an alternative solution for creating digital sovereignty. Risk 1: Vendor LockIn The reason…

The abbreviation PaaS , short for Platform as a Service , describes the middle tier of the cloud service models. The main benefit is, in particular, the simplification of the development and provision of applications as well as greater efficiency. Here the user has to take the software development into their own hands. At the same time, however, this also means for him that PaaS already brings elements such as runtime environment or operating system with it. Nevertheless, all important responsibilities are borne by the provider. Advantages and disadvantages of PaaS At the same time, there are also some noteworthy advantages and disadvantages with this service model. With PaaS, these parameters stand out in particular: benefits faster and less complicated development and delivery of the softwareDevelopment, test phases and operation possible on a uniform platformSoftware development lifecycle easy to manageMany functionalities are directly available, e.g. authentication, security features, database management…

With SaaS , short for Software as a service , the third service model of clouds is now described at this point. Applications can be used directly via the Internet or via the browser. By purchasing licenses (mostly in the form of subscriptions) to use the service via the web browser, the user only has to log into the web application with his login data. Installation on your own internet-enabled device and the purchase of additional hardware with increased computing power are no longer necessary. And the user does not have to back up data and install current updates himself, as these tasks are taken over by the cloud provider himself. At the same time, this means that companies usually have to pay a monthly or annual fee for use, based on the number of users. SaaS is available in many areas. These include, for example: e-mailOffice and writing programsCustomer…

With the Hybrid cloud is the name given to the interaction of the two variants of public and private cloud. The hybrid cloud thus corresponds to a services environment consisting of private cloud services and public cloud services. It therefore combines the advantages of both types of cloud. In addition, the three models IaaS, PaaS and SaaS can be used within the hybrid cloud (see Fig. 1). Fig. 1: Summary of the three models(Source: Lindner et al. 2020) Private cloud vs. public cloud To understand how exactly the hybrid cloud works, it is first necessary to know the characteristics of its basic components. Private cloud (own server) Focus on securityfull possibility of customizationown control Public cloud (server of one provider) low costPossibility of flexible billinghigh scalability Building the hybrid cloud For medium-sized and large companies, it is often sensible to combine both types of cloud in the form of a…

For many companies and especially their employees, the cloud is usually still a mystery. Nevertheless, it can be said: the use of the cloud in practice has a good star. IT experts even favor the cloud as one of the TOP 5 IT trends with probably extremely strong growth for cloud providers. But what makes the use of the cloud so desirable in practice? Are there only positive effects or can disadvantages also be found? And how is the cloud currently being used by companies? Fig. 1: The cloud as a mystery (source: Lindner et al. 2020) Use of cloud In the area of using the cloud, it is primarily about the desire and the possibility resulting from the cloud in the area of information technology (IT) to be able to work efficiently and at the same time flexibly and agile. While these parameters only appeared feasible for startups for…

At IaaS , short for Infrastracture as a Service , is a service model of cloud technologies. The user can manage the environment himself, apart from the physical infrastructure. IaaS also offers the advantage that it is comparatively inexpensive by sharing resources with other users. In addition, this service model is structured in such a way that several servers are provided in a network in a data center, which together form a cloud. In other words, the hardware is virtualized and thus enables companies to keep their financial expenses in the cloud area low. Packages from IaaS The resources linked to this system are usually made available in a kind of smaller package. These in turn contain individual components such as: Virtual CPUs: Virtual CPUs differ from real CPUs in that no dedicated CPUs are provided for a customer, but the calculations are carried out on currently “free” cores.Storage: Typically…

Entrepreneurs and decision-makers on their way to the world of cloud technologies primarily hope for an increase in sales and easy scaling of their IT. Even if risks in the area of data protection and generally high costs can arise, experts count the cloud among the TOP 5 IT trends. In addition, they predict extraordinary growth for cloud providers. And also a study by Bitkom ( Cloud Monitor 2019 ) shows that of the more than 500 companies surveyed, more than 70% already use cloud technologies. For the other sub-area that is still on the way, this article is intended to provide an introduction to the topic. Guide to the world of cloud technologies Entrepreneurs and beginners in the field of cloud technologies should first of all make the decision about the right service model. With regard to your requirements, you should choose between IaaS, PaaS and SaaS. Overview of…

The beginnings of cloud technologies go back almost 20 years. Even after the turn of the millennium, large companies such as Amazon, Google, IBM, Yahoo and Co were experimenting with the flexible use of computers over the Internet. At the moment, the focus was primarily on the increasing user base at peak times such as Christmas. Companies such as the online retailer Amazon are striving to serve their customers faster and more efficiently through bundled computers via the Internet. From these beginnings, today’s cloud technologies finally developed. But what exactly do they actually describe? What service and delivery models for cloud technologies are there now? And what conclusions can be drawn from the rapid development? What does the term mean? The use of special IT infrastructure is described with the term “cloud”, in English “cloud”. It is primarily a matter of making IT resources available dynamically via the Internet in…

As a result of widespread digitization, the demands on computing resources have also risen sharply. As a result, cloud computing is becoming more and more important. Due to the large amount of data and information and the urge for faster and more flexible solutions, the demands have also increased. More memory, better servers and a higher degree of software, network components and databases are now required. The main advantage is that the user only pays for the cloud service actually used. This gives companies the opportunity to reduce their operating costs. At the same time, you can implement needs-based scaling in an effective infrastructure. But how many companies have already recognized these opportunities? And what is the current usage rate? Or to put it another way: What is the status quo of cloud computing in companies? How current statistics of the “Cloud Monitor 2019” from Bitkom show, almost three quarters…

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