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A Proposal for a Web Services Agreement Negotiation Protocol Framework
(2006)
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Sebastian Hudert
- The WS-Agreement Standard as defined in the current proposal does not accommodate negotiation between service provider and requesters to yield an agreement. It is limited to simple offers and acceptances. However, negotiations between service providers and service consumers beyond the basic mechanism are required and are also part of the charter of the GRAAP working group. There are many mechanisms for negotiating agreements between parties for different purposes, having different sets of participants, different economic properties, different interactions patterns, and different information requirements to enter the interaction. Given the generality of the WS-Agreement scope, supporting a single negotiation mechanism would not satisfy the requirements of different application scenarios. Hence, the objective of this thesis is to devise a proposal to extend the WS-Agreement specification to facilitate the integration of arbitrary negotiation protocols into the WS-Agreement interaction. This includes facilities to enable a party to advertise the negotiation protocol it supports, the role that it can take in this protocol, expectations on other roles in the negotiation, and other meta-information that is necessary to start an interaction. This thesis analyzes the scope of negotiation protocols relevant for service level agreement establishment, derives a data structure for negotiation protocol meta-data, a protocol to exchange meta-data and initiate a negotiation protocol, and obtaining the result of the negotiation, the agreement. The new functionality extends the current WS-Agreement specification seamlessly. The thesis demonstrates the viability of the approach using scenarios of specific negotiation mechanisms.
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Integration von Anwenderschulung mit Systementwicklung und -nutzung bei Standardsoftwareprojekten
(2007)
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Peter Laumer
- In IT-Projekten bilden vor allem Schwächen in der organisatorischen Umsetzung mit die höchsten Risikofaktoren. Eine zentrale Rolle spielt dabei die Schulung der Anwender. Die vorliegende Arbeit analysiert die systematischen Defizite, die bei Anwendertraining vor allem im Zusammenhang mit der Einführung und Nutzung von Standard-ERP-Systemen wie beispielsweise SAP auftreten. Basierend auf dieser spezifischen Anforderungssituation wurde ein eigenständiges Vorgehensmodell für Qualifizierungsprojekte entwickelt. Ein besonderer Schwerpunkt liegt dabei auf der Integration mit den Bereichen Wissensmanagement, Changemanagement und der Personalentwicklung.