
GEOS (Global Entity Order System) is a mainframe-based financial software system developed for straight-through real-time processing of securities and derivatives transactions. It consists of 6000 KLOC written in C and is accessed by a C++ front-end. In 1999 it was decided to extend the functionality to online stock brokerage with multiple front-ends such as a Java Swing client, HTML browser or WAP-enabled device. Due to its size and complexity, enhancing the mainframe system beyond its original design scope is difficult and might decrease its reliability. Consequently, the new functionality was moved into a satellite system (SDS Internet Banking), considering the mainframe system a black box. The online stock brokerage extension was implemented as a distributed system using JAVA, CORBA, Servlet API, JSP and XML.
| selected citations These citations are derived from selected sources. This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | 0 | |
| popularity This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network. | Average | |
| influence This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically). | Average | |
| impulse This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network. | Average |
