Jiri Bartos

A methodology for testing of information system under uncertainty

Current approach to testing of an information system/application and its results lacks the informative value that could evaluate the system in a more complex manner. This article follows already published part of research and enables complex qualitative testing of an information system conducted by multiple testers or multiple repetitive testing tasks.

Expert system for evaluating courses in distance learning systems

E-Iearning systems (distance learning systems) are a very important part of todays learning process. With courses in these systems it is possible to learn the studying material any time in a fun and interactive way. For the teacher or the creator of a system like these, feedback from the participants of the course is an essential and important part of teaching. Therefore, various types of satisfaction questionnaires, purpose of which is to record how the class was satisfied with this course, have developed. This paper proposes an expert system that evaluates each of the generated questionnaires and suggests important aspects and parts that should be improved in other courses. The expert system is verified on a concrete example. The verification results are presented at the end of this article.

Deployment of mandatory access control policies of operating system under uncertainty

This article deals with mandatory access controls and security policies within an operating system and proposes general methodology for selection and deployment of policies based on vague information, where these vague descriptions are representing operational, functional and security requirements imposed on the operating system. The proposed methodology is supported by an expert system, purpose of which (together with the methodology) is to minimize, or even completely eliminate, the need for a security consultant as an expert in the problem domain, who is usually needed in the process of designing of a secure operating system. Overall, the methodology tries to move this key responsibility to either the user or the administrator.

Audit of virtual systems based on vague inputs

This article deals with risk analysis and audits of virtual infrastructures. It gives a brief look into todays risk mitigation approaches and extends one with the evaluation of security by the evaluation based on linguistically variables.

Web application for searching in real estate web portals

Nowadays, there are a lot of real estate web portals which publish information about various types of accommodation. Most of them have searching forms, but the quality and availability of the search forms is different. In this article, the system for searching in real estate web portals is proposed. The proposed approach uses terms of a natural language and evaluates results due to the users preferences. At the end of the article, the web application is designed and the results are shown.