From the Client-Server Architecture to the Information Service Architecture

This paper aims to justify the need for refining the concept of the traditional three-tier client-server architecture to address the drastic changes we have encountered in the form of information processing needs demanded by the public and the information processing services supplied to the public. The paper suggests much needed revisions to the traditional approach and demonstrates how the Information Service Architecture fits into the realm of future systems development by using a fairly complex example of an information system implementation

Recover Data about Detected Defects of Underground Metal Elements of Constructions in Amazon Elasticsearch Service

This paper examines data manipulation in terms of data recovery using cloud computing and search engine. Accidental deletion or problems with the remote service cause information loss. This case has unpredictable consequences, as data must be re-collected. In some cases, this is not possible due to system features. The primary purpose of this work is to offer solutions for received data on detected defects of underground metal structural elements using modern information technologies.The main factors that affect underground metal structural elements' durability are the soil environment's external action and constant maintenance-free use. Defects can usually occur in several places, so control must be carried out along the entire length of the underground network. To avoid the loss of essential data, approaches for recovery using Amazon Web Service and a developed web service based on the REST architecture are considered. The general algorithm of the system is proposed in work to collect and monitor data on defects of underground metal structural elements. The result of the study for the possibility of data recovery using automatic snapshots or backup data duplication for the developed system.

USER-DESIGNED SOFTWARE AS A SERVICE – CAN CONCEPTUAL WORK BE SHIFTED TO THE END-USER

Cloud Computing and especially Software as a Service (SaaS) is predicted to bring about the next information technology(IT) revolution. Benefits and risks have been discussed extensively in both research and practice. Key benefits like higherflexibility and lower costs are confronted with major risks such as loss of data control. These benefits and risks arepredominantly discussed in the context of traditional SaaS. Here, the administrator configures and maintains the application.In contrast, new SaaS concepts allow shifting conceptual work to end-users by enabling them to adjust standard SaaSsoftware independently from their IT department. Using an action research approach, we investigated the benefits and risks ofthis so called user-designed SaaS, and compared them to those of traditional, administrator-designed SaaS. Many benefitsand risks still apply to user-designed SaaS, but also so far unknown benefits like higher user acceptance and lowerdependency to administrators, as well as new risks like shifting conceptual skills to the end-user were observed

The Business Perspective on Cloud Computing - A Literature Review of Research on Cloud Computing

This literature review synthesized the existing research on cloud computing from a business perspective by investigating 60 sources. It integrates their results in order to offer an overview about the existing body of knowledge. Using an established framework our results are structured according to the four dimensions following: cloud computing characteristics, adoption determinants, governance mechanisms, and business impact. This work reveals a shifting focus from technological aspects to a broader understanding of cloud computing as a new IT delivery model. There is a growing consensus about its characteristics and design principles. Unfortunately, research on factors driving or inhibiting the adoption of cloud services, as well as research investigating its business impact empirically, is still limited. This may be attributed to cloud computing being a rather recent research topic. Research on structures, processes and employee qualification to govern cloud services is at an early stage as well