In the Working Formulation (WF), non-Hodgkin's lymphomas (NHL) are grouped according to their clinical behavior. These disorders are listed as entities defined by morphology, phenotype, and cytogenetics in the proposed Revised European-American Classification of Lymphoid Neoplasms (REAL), the clinical relevance of which is still debated. We analyzed 670 NHL cases included in two randomized clin...

Exception handling is a fundamental functionality of workflow management systems (WfMS). User involvement in exception handling is recognized as critical in various situations due to the unpredictability nature of the exceptions that can occur in a running workflow (WF) engine. The problem however is how to orchestrate human ad hoc interventions with a minimum impact on system integrity. The co...

Datenbank-Spektrum 4/2002 59 Prozessorientierte Anwendungen lassen sich nur durch die Verwendung eines Workflow-Management-Systems (WfMS) mit vernünftigem Aufwand und zu akzeptablen Kosten realisieren. Jedoch stoßen zentrale WfMS mit nur einem einzigen Server zur Steuerung aller Workflows (WF) oftmals sehr schnell an ihre Leistungsgrenze. Zur Erhöhung der Skalierbarkeit von WfMS werden deshalb ...

If the number of users within a work ow management system WFMS increases a central work ow server WF server and a single local area network LAN may become overloaded The approach describes an execution environment which is able to manage a growing number of users by adding new servers and subnets The basic idea is to decompose processes into parts which are controlled by di erent WF servers Tha...

Workflow management systems (WfMS) offer a promising approach for realizing process-oriented information systems. Central WfMS, with a single server controlling all workflow (WF) instances, however, may become overloaded very soon. In the literature, therefore, many approaches suggest using a multi-server WfMS with distributed WF control. In such a distributed WfMS, the concrete WF server for t...