Consistency Policies for Dynamic Information Systems with Declassification Flows

Author(s):  
Julien A. Thomas ◽  
Frédéric Cuppens ◽  
Nora Cuppens-Boulahia
2013 ◽  
Vol 61 (3) ◽  
pp. 569-579 ◽  
Author(s):  
A. Poniszewska-Marańda

Abstract Nowadays, the growth and complexity of functionalities of current information systems, especially dynamic, distributed and heterogeneous information systems, makes the design and creation of such systems a difficult task and at the same time, strategic for businesses. A very important stage of data protection in an information system is the creation of a high level model, independent of the software, satisfying the needs of system protection and security. The process of role engineering, i.e. the identification of roles and setting up in an organization is a complex task. The paper presents the modeling and design stages in the process of role engineering in the aspect of security schema development for information systems, in particular for dynamic, distributed information systems, based on the role concept and the usage concept. Such a schema is created first of all during the design phase of a system. Two actors should cooperate with each other in this creation process, the application developer and the security administrator, to determine the minimal set of user’s roles in agreement with the security constraints that guarantee the global security coherence of the system.


2006 ◽  
Vol 23 (1) ◽  
pp. 61-69
Author(s):  
S Nandi ◽  
S Kandom Reddy

Author(s):  
Juha Kettunen ◽  
Jouni Hautala ◽  
Mauri Kantola

The purpose of this article is to analyse the interaction between the dynamic information environment (IE) and the operational environment to promote the cooperation of the higher education institution with business life and enhance the external impact of the institution on its environment. The dynamic IEs are analysed to manage the information systems and internal processes in an educational institution and their cooperating partners. This article is organised as follows: The article introduces the approach of IEs and operational environments. Then the concept of a dynamic IE is used to analyse the information systems used in the core internal processes of the higher education institution. The study also describes the partnership in a dynamic IE. Thereafter, a short case study is presented about partnership using the electronic Optima platform at the Turku University of Applied Sciences (TUAS). Finally, the results of the study are summarised in the concluding section.


2013 ◽  
Vol 20 (1) ◽  
pp. 101-114 ◽  
Author(s):  
Yunfei Yin ◽  
Yafei Zeng ◽  
Haichao Guan ◽  
Xiaonan Wang

2020 ◽  
Vol 5 (2) ◽  
pp. 357-366
Author(s):  
Xiuqing Yu ◽  
Fengsheng Xu

AbstractPacket sets and inverse packet sets are two kinds of novel mathematical tools to analyze dynamic information systems. With advances in inverse packet sets, random inverse packet information is proposed by introducing random characteristics into inverse packet sets. Hence, random inverse packet information has dynamic and random characteristics, and is an extended form of inverse packet sets. Furthermore, random feature, dynamic feature, and identification relation about the random inverse packet information are discussed. Finally, based on the above theory, an instance is used to illustrate the applications of intelligent acquisition of investment information.


1992 ◽  
pp. 315-329 ◽  
Author(s):  
Maria E. Orlowska ◽  
Marian W. Orlowski

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