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The Impact of the Subgroup Structure on the Evolution of Networks: An Economic Model of Network Evolution

Kim, Kibae; Altmann, Jorn; Hwang, Junseok - Technology Management, Economics and Policy Program … - 2010

One of the most important properties of self-organized networks is their scale-free property. Prior research proved empirically and theoretically that scale-free networks emerge under the preferential attachment rule. However, a few empirical studies also show that empirical networks diverge...

Persistent link: https://www.econbiz.de/10008511397

Two Risk-aware Resource Brokering Strategies in Grid Computing:Broker-driven vs. User-driven Methods

Hwang, Junseok; Park, Jihyoun; Altmann, Jorn - Technology Management, Economics and Policy Program … - 2010

Grid computing evolves toward an open computing environment, which is characterized by highly diversified resource providers and systems. As the control of each computing resource becomes difficult, the security of users¡¯ job is often threatened by various risks occurred at individual...

Persistent link: https://www.econbiz.de/10008511398

Grid Business Models for Brokers Executing SLA-Based Workflows

Quan, Dang Minh; Altmann, Jorn - Technology Management, Economics and Policy Program … - 2010

incentive structure for users to consume the HPCC services, and for brokers to perform efficiently. The business model also …

Persistent link: https://www.econbiz.de/10008511399

A Marketplace and its Market Mechanism for Trading Commoditized Computing Resources

Altmann, Jorn; Courcoubetis, Costas; Risch, Marcel - Technology Management, Economics and Policy Program … - 2010

value-added support services. These value-added services help consumers to use the utility computing market more efficiently …

Persistent link: https://www.econbiz.de/10008511408

The GridEcon Platform: A Business Scenario Testbed for Commercial Cloud Services

Risch, Marcel; Altmann, Jorn; Guo, Li; Fleming, Alan; … - Technology Management, Economics and Policy Program … - 2010

Within this paper, we present the GridEcon Platform, a testbed for designing and evaluating economics-aware services in … a commercial Cloud computing setting. The Platform is based on the idea that the exact working of such services is … is needed. To identify the components of the GridEcon Platform, a number of economics-aware services and their …

Persistent link: https://www.econbiz.de/10008511413

IT Service Platforms: Their Value Creation Model and the Impact of their Level of Openness on their Adoption

Gebregiorgis, Selam Abrham; Altmann, Jorn - Technology Management, Economics and Policy Program … - 2012

-in issue, do not adopt cloud services. Opening up an IT service platform, however, reduces users¡¯ concerns about lock-in and …

Persistent link: https://www.econbiz.de/10010593113

Agent-Based Simulations of the Software Market under Different Pricing Schemes for Software-as-a-Service and Perpetual Software

Rohitratana, Juthasit; Altmann, Jorn - Technology Management, Economics and Policy Program … - 2010

In this paper, we present agent-based simulations that model the interactions between software buyers and vendors in a software market that offers Software-as-a-Service (SaaS) and perpetual software (PS) licensing under different pricing schemes. In particular, scenarios are simulated, in which...

Persistent link: https://www.econbiz.de/10008500564

Evolution of the Software-as-a-Service Innovation System Through Collective Intelligence

Kim, Kibae; Altmann, Jorn - Technology Management, Economics and Policy Program … - 2013

service. Software users consume those software services or compose new services by combining those existing software services …. The software vendors, their services, software users, and the platform represent an open innovation system. Collective … existing software services for the creation of new services. A successfully working software services system is a system that …

Persistent link: https://www.econbiz.de/10010778549

Cloud Computing Value Chains Understanding Businesses and Value Creation in the Cloud

Mohammed, Ashraf Bany; Altmann, Jorn; Hwang, Junseok - Technology Management, Economics and Policy Program … - 2010

services (e.g. Amazon EC2) or software-as-a-service offerings (e.g. Salesforce.com) came into existence. However, the … relatively weak business exploitation, participation, and adoption of other Cloud Computing services remain the main challenges … its technology. Using an extensive analyze of existing Cloud business models, Cloud services, stakeholder relations …

Persistent link: https://www.econbiz.de/10008511396

Investigating the Role of a Transmission Initiator in Private Peering Arrangements

Davoyan, Ruzana; Altmann, Jorn - Technology Management, Economics and Policy Program … - 2010

This paper investigates the impact of determination of an original initiator of transmission on demand as well as profits of the providers. For that purpose we present a new model, called differentiated traffic-based interconnection agreement (DTIA) that differentiates traffic into two types,...

Persistent link: https://www.econbiz.de/10008511383