Bei auf die Infrastruktur bezogenen Szenarien hat Open-Source-Software in den vergangenen Jahren ihre Tauglichkeit für den Firmeneinsatz bereits hinreichend unter Beweis gestellt.

Entgegen der landläufigen Meinung bietet freie Software auch im Bereich klassischer Enterprise-Applikationen durchaus ernstzunehmende Alternativen zu den proprietären Produkten.

Anwender sind bei Problemen aber nicht ausschließlich auf die Gnade der Community angewiesen; ein mittlerweile existierendes Dienstleistungsökosystem kann Service-Ansprüche auch von Unternehmen zufriedenstellen.

This paper proposes to make complex production machines more user-friendly. Improved machines help the operator in case of an error message or a process event by displaying recommendations, such as “in the last 10 occurences of this event the operators performed the following keystrokes”. The messages are generated from statistical data on former user- interaction and previous process-events. The data represents the knowledge of all the machine operators. The data is gathered by logging user-interaction and process-events during regular operation of the production machine. This approach allows to store the operators’ expert knowledge in the production machine without human intervention.

NoSQL and especially graph databases are constantly gaining popularity among developers as they promise to deliver superior performance when handling highly interconnected data compared to relational databases. Apache Shindig is the reference implementation for OpenSocial with a highly interconnected data model. However, it had a relational database as back-end. In this paper we describe our experiences with the graph database Neo4j as back-end and compare Cypher, Gremlin and Java as alternatives for querying data with MySQL. We consider performance as well as usability from a developer's perspective. Our results show that Cypher is a good query language in terms of code readability and has a moderate overhead for most queries (20–200%). However, it has to be supplemented with “stored procedures” to make up for some performance deficits in pattern matching queries (>1000%). The RESTful API is unusable slow, whereas our WebSocket connection performs significantly better (>650%).

Die digitale Transformation bringt ein viel diskutiertes Thema zurück auf die Agenda: IT-Compliance. Wie die Öffentliche Verwaltung davon betroffen ist, untersuchen das Institut für Informationssysteme (iisys) der Hochschule Hof und die Blue Eye Solutions GmbH. Erste Ergebnisse des laufenden Forschungsprojekts liegen nun vor.

In the present mobile climate, both companies as well as their consumers are able to execute various processes at any time in any location using a myriad of wireless technologies. Organizational trends demonstrate that mobile devices are being utilized exponentially more to solve problems from the strategic planning level to the operational level through various departments. This propensity was recently confirmed for Germany in a neoteric IDC study [1]. Utilizing that analysis, this article will evaluate and inspect the scope of such modeling. We will endeavor to define the term "mobile modeling", and our final desideratum will be to present results from an empirical investigation of its requirements and benefits. Finally, we will discuss the future technical implications and conclusions of the model.

Due to the rising energy prices energy efficient heating systems become more and more attractive. Next to the energy consumption the comfort is a very
important criterion. Conditioned by these requirements the number of panel heating systems will increase in the future. To comply with the customer request
infrared (IR) radiation is suitable, because of the reduced dust emergence and noise emission in comparison to standard heaters. Infrared heating systems are
beneficial to health and create a “feel-good” climate. Based on these aspects a ZIM-supported project was initiated to develop an innovative textile heating
system using carbon nanotubes (CNT), which emit infrared radiation

Sind digitale Währungen wie Bitcoin nur eine „digitale Phase“ oder werden sie in der Zukunft einen beachtenswerten Teil der globalen Finanztransaktionen bestimmen? Welche Anwendungsszenarien der Technologien sind denkbar? Und wie können die bestehenden Hürden überwunden werden um Peer-to-Peer-Systeme im Finanzbereich nachhaltig zu etablieren? Eine aktuelle Studie versucht diese Fragen zu beantworten.

In der Betriebswirtschaft, auch im Bereich des Marketings oder der Medienwirtschaft, scheint die betriebliche Kommunikationspolitik im Marketing-Mix unter den „4 P“ oft immer noch eine Randstellung einzunehmen. Zwar ist der „Vierklang“ des Marketing-Mix in den meisten Standardwerken inzwischen Konsens. In vielen Lehrbüchern wird aber etwa der Bereich der Mediaplanung wie auch der kommunikationspolitische Aspekt der Zielgruppendefinition zu Gunsten einer eher Produkt- und Leistungsportfolio bezogenen Sichtweise – wie noch zu zeigen sein wird – oft vernachlässigt. Auf noch dünnerem Eis bewegt man sich, wenn man diese Themenfelder auf die digitale Welt bezieht. Auch heute noch, fast 25 Jahre nach der ersten breit zugänglichen Publikation im „World Wide Web“, wird Digitale Kommunikation in den meisten klassischen Lehr- und Grundlagenwerken nur als Sparten- oder Randthema behandelt und eher vermeintlich spezifischen Publikationen zum „Online Marketing“ überlassen. Das erscheint verwunderlich, wenn man das alltägliche Phänomen der Digitalisierung und das dadurch ermöglichte Aufkommen von Sozialen Netzwerken oder die flächendeckenden Verbreitung von Smartphones sowie ihre Auswirkung auf den Stellenwert von Informationskonsum und Kommunikation betrachtet.

The paper presents results from an empirical study about the use of a single sign-on (SSO) system in an integrated open source system landscape for supporting team collaboration. A portal solution, enterprise content man-agement system, groupware, business process management and enterprise search engine are used. The investigation shows that although it is easy to achieve SSO with the Web-based user interfaces of the information systems used, none of the systems was prepared to pass authentication tokens to the API of an integrated system or accept SSO tokens instead of username / password pairs for authentication against the API respectively. Different al-ternatives for achieving the desired functionality are presented and a recom-mendation for improvement of the affected information systems is derived.

Usually, knowledge workers are said to not benefit from business process management (BPM) systems, since their main tasks are weakly structured and not representable by a workflow. However, not all of their tasks are equally weak structured, and with adaptive case management (ACM) solutions, a new category of tools came up to support those processes, even if they are weakly structured. This paper introduces an approach to support the creation of cases for ACM engines by mining activities from an activity stream and suggesting tasks that a knowledge worker can use to create a case. Furthermore, the approach supports maturing of the case towards a workflow by detecting repeating sequences in the execution of tasks and suggesting sub processes for the case which is possible with the case management model and notation (CMMN) together with the business process model and notation (BPMN). To allow for further enhancement of the cases, the ACM solution is extended with social collaboration features, so that people working on the case can comment and rate single tasks. The goal is to show that it is possible to establish ties from social activities and Web 2.0 to ACM and BPM. The presented solution uses a graph database as a basis for activity mining.