events

Workshop Cluster 2: "IT-Architekturen zur Unterstützung flexibler E-Finance Prozesse"

André Miede, E-Finance Lab
Sicherheitsanforderungen in Service-orientierten Architekturen

Service-orientierte Architekturen (SOA) bieten Unternehmen die Möglichkeit, ihre Geschäftsprozesse mit der darunter liegenden technologischen Infrastruktur besser zu verknüpfen, um so beispielsweise flexibler auf Änderungen reagieren zu können. In diesem Zusammenhang bleiben klassische Sicherheitsanforderungen wie z.B. Vertraulichkeit, Authentizität, Integrität, Verbindlickeit usw. erhalten, können jedoch von monolitischen Architekturen auf SOA nicht direkt übertragen werden. Der Vortrag stellt die Besonderheiten von Sicherheitsanforderungen an SOA vor und beschäftigt sich mit der Fragestellung, wie die Modellierung von Sicherheitsmechanismen direkt in die Gestaltung fachlicher Prozesse integriert werden kann.


Michael Niemann, TU Darmstadt
SOA Governance

Over the past years, Service-oriented Architecture (SOA) Systems have been recognized more and more as a serious alternative to common monolithic systems for Enterprise Architectures (EA). An SOA provides a flexible means of effectively mapping business processes to IT processes. However, large IT systems require consistent leadership - IT Governance. For SOAs, governance faces new challenges. A number of different approaches for SOA Governance.

Frameworks exist, which differ extensively in scope and capability, as most of them are product-driven and developed by software companies. In this paper, we outline and compare existing SOA Governance approaches and present our approach - a Generic Governance Model for SOA.


Lars Turczyk, E-Finance Lab
Simulation of Automated File Migration in Information Lifecycle Management

Information Lifecycle Management (ILM) is a strategic concept for storage of information and documents. ILM is based on the idea that in an enterprise information have different values. Information with different values are stored on different storage hierarchies. ILM offers significant potential cost savings by tiering storage and 90% of decision makers consider implementing ILM.

ILM automation needs migration rules. There are well-known static, heuristic migration rules and we present a new dynamic migration rule for ILM. These migration rules are implemented in an ILM simulator. We compare the performance of the new dynamic rule with the heuristics. The simulative approach has two advantages. On the one hand it offers predictions about the dynamic behaviour of an ILM migration rule and, on the other hand, it dispenses with real storage hardware.

Simulation leads to decisions under certainty. When making a decision under certainty, the major problem is to determine which the trade-off among different objectives is. Cost-benefit analysis can be used to this purpose. A decision matrix is laid where rows represent choices and columns represent states of nature. The simulated results support the choice of migration rules and help to avoid mismanagement and poor investments in advance. The results raise the awareness of choosing the best alternative.