Search results for "enterprise."
showing 10 items of 410 documents
Mutual entity authentication for LTE
2011
In this paper we outline the Authentication and Key Agreement protocol (EPS-AKA) found in Long-Term Evolution (LTE) systems. This architecture is the 3GPP version of a 4G access security architecture. The LTE security architecture is a mature evolved architecture, with both strengths and weaknesses. In this paper we propose an amendment to the EPS-AKA protocol to make it a full mutual (online) entity authentication protocol. We also analyze the proposal, highlighting both the improvements and the drawbacks of the new AKA protocol.
Educating reflective Enterprise Systems practitioners: a design research study of the iterative building of a teaching framework
2013
This research paper reports on the iterative design of a teaching framework developed for teaching Enterprise Systems ES classes for Information Systems IS graduates. These systems embed technical complexity and create organizational challenges when implemented in organizations. Therefore, teaching good ES classes is pedagogically challenging for faculty, and ES curricula are difficult for students. We have gradually designed and rebuilt curricula and teaching frameworks over 8years. This has also resulted in a set of eight design principles. We report from our design and evaluation process and present our final artefact, the teaching framework. The aim is to educate reflective practitioner…
A Literature Review on Cloud Computing Adoption Issues in Enterprises
2014
Part 3: Creating Value through Applications; International audience; Cloud computing has received increasing interest from enterprises since its inception. With its innovative information technology (IT) services delivery model, cloud computing could add technical and strategic business value to enterprises. However, cloud computing poses highly concerning internal (e.g., Top management and experience) and external issues (e.g., regulations and standards). This paper presents a systematic literature review to explore the current key issues related to cloud computing adoption. This is achieved by reviewing 51 articles published about cloud computing adoption. Using the grounded theory approa…
Dual Capability EAM for Agility in Business Capability Building : A Systems Theoretical View
2021
Through two cases of IT-enabled business capability building in large enterprises, this paper elucidates how the systems theory approach can explain the enterprise architecture management (EAM) challenge to support business agility. The observation in both of these cases is that a legacy EAM approach does not adapt to a business development scenario involving agility. This leads to a study of the nature of the challenges in EAM when enabling strategic business moves involving new technologies, at the business unit level. For the type of projects as in these cases, we do not find a fitting paradigm in the EAM literature. Suggested solutions are IT bimodality, or Two Speed IT. However, its co…
The Holonic Production System: a Multi Agent Simulation Approach
2010
Today’s turbulent markets are facing unpredictable and sudden variations in demand. In this context, the Holonic Production System (HPS) seems to be able to overcome the operational and economic problems of traditional production systems. The HPS’ ability to adapt and react to business environment changes, whilst maintaining systemic synergies and coordination, leverage on its network organizational structure, assuring both flexibility and profitability. In this paper we study HPS experimentally, modeling holon-firms as agents. In our simulation, holon-firms interact both with each other and with the external environment without predetermined hierarchies and following their own aims and int…
Virtual Environment for Implementation and Testing Private Wide Area Network Solutions
2013
In this paper the concept of virtual environment for implementation and testing private Wide Area Network (WAN) solutions is presented. The VMware vSphere virtualization platform is used. The paper presents the ability to reflect the structure of any given WAN topology using Vyatta software routers and VMware virtualization platform and verifies its reliability regarding data transfer. The paper includes a number of performance tests to verify the dependability of the proposed solution and provide a proof-of-concept for the network topology during the Design phase of the PPDIOO methodology, right before the Implementation phase.
Enterprise Architecture Benefits: Perceptions from Literature and Practice
2008
First published in the Proceedings of the 7th IBIMA Conference Internet & Information Systems in the Digital Age, 14-16 December, 2006, Brescia, Italy Enterprise Architecture (EA) is considered a means for acquiring a multitude of benefits in organizations by most academic literature and practitioners alike. However, academic research has almost omitted the domain of EA benefits and value realization, and thus more research on the subject is needed. This paper describes a study which aims to chart the benefits of EA by a comprehensive literature review and a focus group interview of practitioners. As a result, a categorization of the EA benefits is composed and analyzed.
A Goal-Oriented Way to Define Metrics for an Enterprise Architecture Program
2008
First published in the Journal of Enterprise Architecture, Vol. 4, No. 1, 2008, pp. 20-26. Republished with the kind permission of the Journal of Enterprise Architecture Metrics are becoming more and more important in the development of enterprise architecture (EA) programs. Therefore, guidelines and support to define metrics for EA programs are needed. A goal-oriented approach for defining metrics for EA program and the measurement aspects for EA program are presented in this article. This approach was developed and tested during the development of proposals of EA program metrics for two companies. peerReviewed
Services supérieurs et recomposition urbaine
2000
Since the 1980s, we have observed an increasing tendency o f specialized services like producer services to leave their « natural habitat » in the center o f large met ropolitan areas in order to re loc at e in suburban zones. This phenomenon is particularly apparen t in North American citi es and seems to be occurring around certain French cities too. This paperinvestigates the forms taken by this new trend, and the reasons behind it. Taking economic geography and economics of cities as our theoretical basis, we first describe the main forces deter mining the agglomeration o f producer services and their preference for certain big cities. Agglomeration factors are to be looked for not only…
FACTORS THAT MOTIVATE LATVIAN CONSUMERS TO PURCHASE PRODUCTS AND SERVICES FROM SOCIAL ENTERPRISES IN LATVIA: THE CASE OF SOCIALLY RESPONSIBLE CONSUMP…
2019
The purpose of the study is to -determine the relative importance of various factors that motivate Latvian consumers to purchase products and services from social enterprises in order to provide practical suggestions and recommendations for Latvian social enterprises that would allow them to improve their performance. The primary method used by the study is quantitative research by the means of an online survey of Latvian consumers of social enterprise products /services. The results of the research indicate that Latvian consumers find the product / service quality aspects, as well as aspects of social responsibility and convenience of the shopping location, on average, as most motivating t…