Articles scientifiques

Does Superposition Influence the Success of FLOSS Projects? Examining Open Source Software Development by Organizations and Individuals


Information Systems Research

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Départements : Information Systems and Operations Management, GREGHEC (CNRS)

Does Technostress Inhibit Employee Innovation? Examining the Linear and Curvilinear Influence of Technostress Creators


Communications of the Association for Information Systems

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Départements : Information Systems and Operations Management, GREGHEC (CNRS)

Dynamic Monitoring of Service Outsourcing for Timed Workflow Processes

Y. DU, L. WANG, G. MU, X. LI

IEEE Transactions on Engineering Management

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Départements : Information Systems and Operations Management, GREGHEC (CNRS)

Mots clés : IEEE Keywords: Outsourcing, Monitoring, Petri nets, Analytical models, Task analysis, Heuristic algorithms, Quality of service Author Keywords: Fragmentation execution, Petri net, service outsourcing, temporal constraint, workflow process

Service outsourcing for workflow processes has drawn much attention from researchers in recent years. Service outsourcing can not only improve the execution efficiency of workflow processes, but also reduce the overall costs and risks effectively. However, the existing methods neglect to consider the dynamic monitoring of the temporal constraints and the data transferring relationship of the activities among the local subplans or subprocesses of service providers in service outsourcing. As a result, the existing methods cannot propose solutions to temporal violations. In this paper, we propose a Petri net-based approach for dynamic monitoring of the temporal constraints of service outsourcing for timed workflow processes. As a widely used formal tool for modeling and analyzing the workflow processes, Petri nets can be used to design the structure of the workflow processes and provide powerful analysis techniques to verify the constraints. Specifically, we first propose a procedure to construct the Petri net-based fragments with data transferring of workflow processes. The monitoring mechanism of the temporal constraints is then set based on the fragments. Finally, we present algorithms for dynamically verifying the temporal constraints during the execution of fragments and repairing the temporal violations on the fragments. Compared with the existing methods, the proposed approach can construct fragments based on arbitrary service outsourcing results and provide optimal solutions to resolving temporal violations. Accordingly, the proposed approach can improve the efficiency of the exception handling in the workflow processes and reduce the overall operational costs

Optimal Feed-In Tariff Policies: The Impact of Market Structure and Technology Characteristics


Production and Operations Management

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Départements : Information Systems and Operations Management, GREGHEC (CNRS)

This paper models a multi‐player environment consisting of a grid operator responsible for meeting electricity demands, a photovoltaic (PV) manufacturer, customers who might install (solar) PV systems, and a regulator who must set an optimal feed‐in tariff (FIT). The grid operator must meet exogenous electricity demand and also buy back all electricity (produced by PV systems) at the FIT set by the regulator. Customers decide whether or not to invest in a PV system. Adoption rates affect the manufacturer and operator by (respectively) establishing the demand for PV systems and determining how much PV electricity is fed into the grid. The PV manufacturer's decision variable is the sales price per PV unit. The decisions of all players in the model are intertwined in a way that clearly affects their respective welfare. We demonstrate in particular how technology and market characteristics—including PV manufacturing cost and market competition—change the optimal decisions of players and thereby influence the effectiveness of FITs, the number of PV adopters, and the cost to provide the social benefit of on‐demand electricity. Our findings confirm the importance of considering technology manufacturers when devising schemes to incentivize the adoption of PV systems

Using Polynomial Modeling to Understand Service Quality in E-government Websites


MIS Quarterly

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Départements : Information Systems and Operations Management, GREGHEC (CNRS)


Informations Systems and Operations Management

Campus HEC Paris
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Xitong LI

Information Systems and Operations Management (GREGHEC)

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