Modeling and design of role engineering in development of access control for dynamic information systems

2013 ◽  
Vol 61 (3) ◽  
pp. 569-579 ◽  
Author(s):  
A. Poniszewska-Marańda
Keyword(s):  
Information Systems ◽  
Dynamic Information ◽  
Minimal Set ◽  
Distributed Information ◽  
Heterogeneous Information ◽  
System Protection ◽  
Level Model ◽  
Model Independent ◽  
Role Concept ◽  
High Level

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.

Intelligent Agents for Competitive Advantage

2011 ◽  
pp. 25-34
Author(s):  
Mahesh Raisinghani ◽  
John H. Nugent
Keyword(s):  
Decision Making ◽  
Information Systems ◽  
Competitive Advantage ◽  
Cycle Time ◽  
Intelligent Agents ◽  
Business Management ◽  
Telecommunications Networks ◽  
Management Processes ◽  
Level Model ◽  
High Level

This chapter presents a high-level model for employing intelligent agents in business management processes, much like has been successfully accomplished in complex telecommunications networks, in order to gain competitive advantage by timely, rapidly, and effectively using key, unfiltered measurements to improve cycle-time decision making. The importance of automated, timely, unfiltered (versus “end of period” filtered) reports is highlighted, as are some management issues relative to the pressures that may result concerning an organization’s employees who must now take action in near real time. Furthermore, the authors hope that understanding the underlying assumptions and theoretical constructs through the use of employing intelligent agents in business management processes as a sub element of, or tool within Business Intelligence (BI), will not only inform researchers of a better design for studying information systems, but also assist in the understanding of intricate relationships between different factors.

scholarly journals A MODEL OF A DISTRIBUTED INFORMATION SYSTEM BASED ON THE Z39.50 PROTOCOL

2021 ◽  
Vol 13 (3) ◽  
Author(s):  
Sandugash Serikbayeva ◽  
J. A. Tussupov ◽  
M. A. Sambetbayeva ◽  
A.S. Yerimbetova ◽  
G.B. Borankulova ◽  
...  
Keyword(s):  
Information Systems ◽  
Access Control ◽  
Information Resources ◽  
Distributed Information Systems ◽  
Distributed Resources ◽  
Distributed Information System ◽  
Distributed Information ◽  
Heterogeneous Information ◽  
Access Control Models ◽  
Information Server

Based on the analysis of typical scenarios of information servers, the tasks that should be solved when organizing an access control system for distributed information resources are formulated. The possibilities of the Z39.50 technologies as the most suitable for building such a system are considered. Within the framework of this technology, three access control models are discussed, which differ in the degree of integration of information server functions with the Z39.50 technologies.The creation and support of distributed information systems and electronic libraries that integrate heterogeneous information resources and operate in various software and hardware environments requires special approaches to managing these systems. If the resources or data themselves can be managed locally, even for distributed information systems, then the task of managing access to distributed resources cannot be solved within the framework of local administration. The justification of the last thesis can be seen when considering typical scenarios of the information server, which we will describe below

Intranet Meets Hospital Information Systems: The Solution to the Integration Problem?

2001 ◽  
Vol 40 (02) ◽  
pp. 99-105 ◽  
Author(s):  
K. A. Kuhn ◽  
R. Lenz
Keyword(s):  
Information Systems ◽  
Autonomous Systems ◽  
Hospital Information Systems ◽  
Web Technology ◽  
Distributed Information ◽  
Heterogeneous Information ◽  
Core Technology ◽  
Heterogeneous Information Sources ◽  
Integration Problem ◽  
Independent Distribution

AbstractBased on the results of an extensive market analysis and technology assessment, this paper summarizes the state of the art in web technology and compares it with the needs of integration in hospital information systems. Web technology and intranet have evolved to a core technology for distributed computing and distributed information systems. The advantage of platform independent distribution of information has led to euphoric visions of future integrated systems. However, true integration takes more than transparent access to heterogeneous information sources. To overcome the essential problems related to integration of autonomous systems it is important to find a common ontological basis for future component based systems.

scholarly journals AGENT BASED ACCESS TO HETEROGENEOUS DATABASES

2011 ◽  
pp. 183-191
Author(s):  
Vyacheslav Y. Pysmennyi ◽  
Maksym Y. Ternovoy
Keyword(s):  
Information Systems ◽  
Data Access ◽  
Heterogeneous Databases ◽  
Multi Agent System ◽  
System Construction ◽  
Agent System ◽  
Distributed Information ◽  
Heterogeneous Information ◽  
Agent Based ◽  
Multi Agent

The paper presents the implementation of system for access to the information in distributed information- telecommunication environment with heterogeneous databases using multi-agent approach. Different ways for multi- agent system construction were considered. It was developed a scheme of interaction between agents in the proposed system. The approach aims to improve the efficiency of data access in heterogeneous information systems without the necessity to change them.

scholarly journals Harmonized and Reversible Development Framework for HLA based Interoperable Application

2012 ◽  
pp. 58-83
Author(s):  
Zhiying Tu ◽  
Gregory Zacharewicz ◽  
David Chen
Keyword(s):  
Information Systems ◽  
High Level Architecture ◽  
Distributed Information System ◽  
Distributed Information ◽  
Model Driven ◽  
Development Framework ◽  
Development Life Cycle ◽  
Enterprise Models ◽  
High Level ◽  
Legacy Information Systems

This chapter aims at proposing an approach to implement a distributed Information System built on top of a federation of existing (reused) software components. This solution is taking as a core consideration the problem of interoperability of data exchanged between enterprises. The idea is to adapt and reuse experiences coming from the development of enterprises legacy Information Systems in order to create a HLA (High Level Architecture) based system of systems. In that perspective, this chapter proposes a new bi-directional development life cycle. MDA (Model Driven Architecture) and HLA FEDEP (Federation Development and Execution Process) are combined and harmonized to implement distributed Information Systems from enterprise models of existing system. Conversely, model reverse engineering techniques are used to help re-implement existing systems, in order to be interoperable without being fully reconstructed. Then, according to HLA 1516 evolved new features, this chapter proposes a solution based on an open source RTI, poRTIco, to implement Web enabled federates.

scholarly journals Dynamic modelling of a servo self-pierce riveting (SPR) process

2021 ◽  
pp. 095440542110374
Author(s):  
Daniel Tang ◽  
Mike Evans ◽  
Paul Briskham ◽  
Luca Susmel ◽  
Neil Sims
Keyword(s):  
Dynamic Modelling ◽  
System Level ◽  
Optimum Process ◽  
Current Limit ◽  
Level Model ◽  
System Level Model ◽  
Head Height ◽  
Extensive Experimental Data ◽  
High Level

Self-pierce riveting (SPR) is a complex joining process where multiple layers of material are joined by creating a mechanical interlock via the simultaneous deformation of the inserted rivet and surrounding material. Due to the large number of variables which influence the resulting joint, finding the optimum process parameters has traditionally posed a challenge in the design of the process. Furthermore, there is a gap in knowledge regarding how changes made to the system may affect the produced joint. In this paper, a new system-level model of an inertia-based SPR system is proposed, consisting of a physics-based model of the riveting machine and an empirically-derived model of the joint. Model predictions are validated against extensive experimental data for multiple sets of input conditions, defined by the setting velocity, motor current limit and support frame type. The dynamics of the system and resulting head height of the joint are predicted to a high level of accuracy. Via a model-based case study, changes to the system are identified, which enable either the cycle time or energy consumption to be substantially reduced without compromising the overall quality of the produced joint. The predictive capabilities of the model may be leveraged to reduce the costs involved in the design and validation of SPR systems and processes.

Sign in / Sign up

Export Citation Format

Share Document