This article reviews the object-oriented features of the Ox matrix programming language. We discuss object-oriented programming in general and give econometric examples coded in Ox. We also discuss some useful built-in classes that come with the Ox distribution.

Für den Objects-first-Ansatz in der Lehre der objektorientierten Programmierung - ohne den Ballast von Klassen - fehlt es bisher an geeigneten Programmiersprachen. Die DOSL (Direct Object Specification Language) erweitert deshalb bisher Smalltalk um die Möglichkeit, Objekte direkt, d.h. ohne...

In this paper we present Zend Architecture, which is an open source technology for developing web applications and services, based on object-oriented components, and the Model-View-Controller architectural pattern, also known as MVC, which is the fundament of this architecture. The MVC...

Die Programmierung ist das zentrale Arbeitsfeld der praktischen Informatik; das erste Kapitel gibt einen kurzen Überblick in das Umfeld und die Bedeutung dieses Kerngebiets: Die charakteristischen Eigenschaften verschiedener Sprachtypen und ihre Entwicklung sowie grundlegende Sichtweisen und...

Python is a powerful high level open source programming language, that is available for multiple platforms. It supports object oriented programming, and has recently become a serious alternative to low level compiled languages such as C. It is easy to learn and use, and is recognized for very...

Bei der Bearbeitung von ad-hoc Tätigkeiten am kollaborativen Arbeitsplatz ist häufig der Zugriff auf eine größere Anzahl von Dokumenten notwendig, die verteilt über verschiedene Repositories vorliegen. Bei der Aktivitäts-zentrischen Organisation und Strukturierung dieser Dokumente wird der...

This paper describes MOLES 1.0, an integrated land-use and transport model developed with Object-Oriented Programming principles in order to combine selected characteristics from Spatial Computable General Equilibrium and microsimulation models.

In this paper we investigate the role of the Remote Façade pattern in the optimization of dis-tributed systems. The intent of this pattern is to wrap fine-grained remote objects in a coarse-grained interface and thus greatly reduce the total number of calls executed over the network. The...

The project was created with the intention of helping the managers, whose objective is to optimize the use of resources so that they obtain the wanted profit. In the first paragraphs we presented the theoretical concepts that we had in order to make this application. We pointed out the necessity...

A toric arrangement is a finite set of hypersurfaces in a complex torus, every hypersurface being the kernel of a character. In the present paper we build a CW-complex S homotopy equivalent to the arrangement complement Rx, with a combinatorial description similar to that of the well-known...

The Web Ontology Language (OWL) is the most expressive standard language for modeling ontologies on the Semantic Web. In this paper, we present a temporal extension of the very expressive fragment SHIN(D) of the OWL-DL language resulting in the tOWL language. Through a layered approach we...

In the paper the original concept of a new cipher, targeted at this moment forcivil applications in technology (e.g. measurement and control systems) and business (e.g.content protecting, knowledge-based companies or long-term archiving systems) is presented.The idea of the cipher is based on...

We present an object-oriented software framework allowing to specify, solve, and estimate nonlinear dynamic general equilibrium (DSGE) models. The implemented solution methods for finding the unknown policy function are the standard linearization around the deterministic steady state, and a...

In der Dissertation wird ein Spezifikationsrahmen dargestellt, mit dem sich die Au?ensicht von (Software-) Komponenten in einer normierten und vollst?ndigen Weise beschreiben l?sst. Dazu werden verschiedene methodische Vorgaben geschaffen, mit denen sich die f?r die betriebliche...

This paper presents the software framework JStatCom which is geared towards the development of rich GUI clients for numerical procedures. The concept is to solve all recurring tasks with the help of reusable Java components. Optionally, one can delegate the execution of special numerical...

This paper presents the software framework JStatCom which is geared towards the development of rich GUI clients for numerical procedures. The concept is to solve all recurring tasks with the help of reusable Java components. Optionally, one can delegate the execution of special numerical...

Controlling sichert die Rationalität der Unternehmensführung. Wie genau können dann aber Rationalitätsdefizite im Rahmen der Unternehmensführung greifbar gemacht werden? Die Beitragsautoren wählen in diesem Werk die Methode der abnehmenden Abstraktion von Siegwart M. Lindenberg als...

A Kalman filter, suitable for application to a stationary or a non-stationary time series, is proposed. It works on time series with missing values. It can be used on seasonal time series where the associated state space model may not satisfy the traditional observability condition. A new...

Purpose – The purpose of this paper is to design and implement a team of middle size soccer robots to conform RoboCup middle‐size league. Design/methodology/approach – First, according to the rules of RoboCup, a middle size soccer robot was designed. The proposed autonomous soccer robot...

Objekte und Objektklassen -- Assoziationen -- Assoziationsklassen -- Aggregation und Komposition -- Generalisierung / Spezialisierung -- Zusammenwirken durch Nachrichtenverkehr -- Modellierung von Verhalten und Abl#x00E4;ufen -- Aktionen -- Aktivit#x00E4;ten -- Sequenzen -- Anwendungsf#x00E4;lle --...

Angesichts der wachsenden Bedeutung von Informationen als strategischer Erfolgsfaktor hat die strategische Informationssystemplanung neben der Unterstützung der Unternehmungsstrategie auch die Aufgabe, der Unternehmung neue Wettbewerbspotentiale zu erschließen. Die Einrichtung einer geeigneten...