GERT networks and the time-oriented evaluation of projects. Ulrich Steinhardt, Lecture notes in economics and mathematical systems , 172 : Operations research

Neumann, Klaus:

ISBN 10: 3540097058 / ISBN 13: 9783540097051

Published by Berlin, Heidelberg, New York : Springer, 1979

About this Item

268 S. : graph. Darst. , 25 cm Sofort verfügbar Versand am folgenden Arbeitstag mit Rechnung daily shipping wordwide with invoice ex library Sprache: Deutsch Gewicht in Gramm: 550.

Seller Inventory # 99773

Bibliographic Details

• Title: GERT networks and the time-oriented evaluation of projects. Ulrich Steinhardt, Lecture notes in economics and mathematical systems , 172 : Operations research
• Publisher: Berlin, Heidelberg, New York : Springer
• Publication Date: 1979
• Language: German
• ISBN 10: 3540097058
• ISBN 13: 9783540097051
• Binding: kart.
• Condition: Sehr gut
• Weight: 550 grams
• Seller catalogs:
  • Alle Bücher

About this title

Synopsis

Towards the end of the fifties methods for planning, scheduling,and control of proj­ ects were developed on the basis that the evolution of a project can be associated with a special weighted directed graph, called activity network. In this association, the individual activities of the project correspond to the arcs, the so-called proj­ ect events (beginning or termination of activities) correspond to the nodes, and the durations of the activities correspond to the weights of the respective arcs of the directed graph. 1) Contiguous arcs are assigned to activities which succeed one another immediately. The event corresponding to a node occurs exactly at the time at which all activities which are associated with the arcs leading into the node are terminated. After the occurrence of an event all those activities are be­ gun which correspond to the arcs emanating from the respective node. This implies especially that the evolution of the project has to be uniquely determined before­ hand, that every activity and every event are realized exactly once during the exe­ cution of the project, and that "feedback" (corresponding to cycles in the asso­ ciated network) is not permitted. Many projects, for example most R&D projects and projects in the area of production p 1 anni ng, do not sa ti sfy the foregoi ng res tri cti ons.