Die Arbeit diskutiert Lösungsvarianten und beschreibt die Implementation eines Prototyps zur Re-Organisation der Nutzerverwaltung des URZ. Besondere Schwerpunkte liegen auf der Erstellung eines Web-Interfaces zur Datenverwaltung und auf der Untersuchung relationaler Datenbanksysteme hinsichtlich der Eignung zur Lösung der Aufgabe. Der Prototyp stellt lediglich eine beispielhafte Implementierung einiger Teilkomplexe des Gesamtsystems dar.

This thesis is based on measuring how Relational Database Management Systems utilizing data-at-rest encryption with varying AES key lengths impact the performance in terms of transaction throughput of operations through the process of a controlled experiment. By measuring the effect through a series of load tests followed by statistical analysis, the impact of adopting a specific data-at-rest encryption algorithm could be displayed. The results gathered from this experiment were measured regarding the average transactional throughput of SQL operations. An OLTP workload in the benchmarking tool HammerDB was used to generate a transactional workload. This, in turn, was used to perform load tests on SQL databases encrypted with different AES-key lengths. The data gathered from these tests then underwent statistical analysis to either keep or reject the stated hypotheses. The statistical analysis performed on the different versions of the AES-algorithm showed no significant difference in terms of transaction throughput concerning the results gathered from the load tests on MariaDB. However, statistically, significant differences are proven to exist when running the same tests on MySQL. These results answered our research question, "Is there a significant difference in transaction throughput between the AES-128, AES-192, and AES-256 algorithms used to encrypt data-at-rest in MySQL and MariaDB?". The conclusion is that the statistical evidence suggests a significant difference in transactional throughput between AES algorithms in MySQL but not in MariaDB. This conclusion led us to investigate further transactional database performance between MySQL and MariaDB, where a specific type of transaction is measured to determine if there was a difference in performance between the databases themselves using the same encryption algorithm. The statistical evidence confirmed that MariaDB vastly outperformed MySQL in transactional throughput.

This Thesis deals with the problems of medical image data management. It analyzes a metadata extraction problem from medical format DICOM and their efficient saving. System is designed as a client-server application. System provides an interface for DICOM data storing, interface for searching, data editing and exporting. System cooperatives with the collaborative system VCE. Implementation was carried out in C++ and PHP language with support of SQLite and MySQL database.

The objective of this thesis was to study the difficulties of Systems in the Internet's environment that are being used for analysis of Financial Market and on the basis of that to analyze, design, create and test these Information Systems. The main focus is primarily on monitoring of information in Financial Market and particularly on implementation of an interface for a customer and on a simple analysis of the gathered data. Furthermore this thesis describes and demonstrates the possibilities of current existing systems that are being used for analysis, gathering of financial data and automated trading in Financial Market, and also the possibilities of commonly used technologies in the Internet's environment: markup language HTML, database system MySQL and a scripting language PHP5, JavaScript and AJAX.

Aim of this thesis is to introduce questions about trading stocks on global stock exchange. It shows up basics ideas, which are necessary to understand the system of trading stocks, building a bussines strategy and its automatization by simple information technology techniques. In the following, there is a description of concept and implementation of business system for testing a trading strategy, which is based on historical market data analysis. The next part of this work is focused on the demonstration system and its expansion possibilities. Whole aplication is created by means of scripting language PHP and Javascript, markup language HTML, using the MySQL database system.

This master's thesis describes development of information system for management of printed paper advertisements, including the problem description, definition of requirements, design, implementation and discussion of planned extensions. During design and implementation, special attention was paid to intuitive and easy user interface. System is programmed in Java language. Hibernate is used for data persistence. Graphical user interface makes use of the Swing framework. MySQL is used as the database system.

Project deals with theoretical part of the process of developing administration systems which are supposed to run on-line. It talks about advantages of frameworks and finds basic principles of designing user interfaces. There are summarized general principles of using interactive components as (X)HTML form elements, JavaScript and AJAX with respect to modern administration systems. Important part of this work describes use of an optimal security mechanisms in language PHP.

This work deals with ERP systems and project management. The aim is to design and create an ERP system for project planning and process management. The main idea is to create simple and eective solution to control all aspects of business processes in company.

This work deals with the possibility of dynamically configurable web applications. It compares the methods of dynamic web technologies, graphical user interfaces and principles of using templates. In other parts describes the analysis, design and implementation of applications, enabling change dynamically the structure of the website. The last part is focused on a description of the system and its operation from the user's point of view.

This text is documentation for multi-access system, which supports recoverable materials. It deals with structure possibilities according to functional system specification and its implementation through the PHP together with using MySQL database system. It analyses a progress of system creation from ER diagram through use-case diagram to programming itself. This work shows how to design web advertisement system which enables an user to define personal multi-level views on data. This project might have been as basis for commerce project, which can check up usability designed structure of individual parts.