Andrea Giessmann

Mobile Enterprise Applications--Current State and Future Directions

The 2nd generation of mobile applications (apps) based on Smart phones and tablet PCs are completely changing the way mobile software is developed, distributed and consumed. In particular mobile enterprise applications (MEA) have a disruptive effect on existing enterprise software and require rethinking in the software industry. Despite their impact, MEA have not been considered sufficiently in literature. This paper contributes to fill this gap by investigating more than 500 existing MEA, by providing an overview of typical characteristics of MEA, and extracting of both future directions in the MEA market and a related research agenda.

4CaaSt: Comprehensive Management of Cloud Services through a PaaS

The 4CaaSt project aims at developing a PaaS framework that enables flexible definition, marketing, deployment and management of Cloud-based services and applications. The major innovations proposed by 4CaaSt are the blueprint and its lifecycle management, a one stop shop for Cloud services and a PaaS level resource management featuring elasticity. 4CaaSt also provides a portfolio of ready to use Cloud native services and Cloud-aware immigrant technologies.

What Are the Business Benefits of Enterprise Mashups

Enterprise mashups (EMs) are a new technology that enables the automation of situational needs of knowledge workers. EMs imply a new development paradigm based on the peer production philosophy and empower end users to create individual applications without the involvement of the IT department. So far, there is insufficient research on potential benefits of EMs. This paper contributes to fill this gap by designing an EM benefit model. By following the design science approach, the balance scorecard concept is leveraged to identify and structure potential benefits of EMs. By means of a laboratory experiment and a case study, the applicability of the designed benefit model is demonstrated.

A marketplace framework for trading cloud-based services

The importance of marketplace frameworks, where demand and supply for electronic services meet, has gained momentum with the recent technological innovations of cloud computing. In particular the emerging market for cloud and XaaS offerings is, in the current early stage of development, scattered and represented by many single offerings. New intermediaries are required for the consolidation of the available service offerings and for providing a one-stop-shopping opportunity for customers. This paper proposes a new cloud marketplace solution that enables on the one hand an integrated platform for the development and selling of XaaS products and on the other hand a one-stop-shopping for customers interested in services. Service providers can merchandise and sell their products through the marketplace supporting the whole lifecycle of these products. Service consumers are provided with a unique personalized service search and resolution engine, helping them to find and customize the products they need.

Quality metrics for mashups

Mashups combine disparate resources in order to create content in new ways from heterogeneous resources. Mashups are created in an ad-hoc manner due to, among other things, missing metrics that should give Mashup composers feedback about their application. The aim of this paper is to discuss application areas of metrics for Mashups. In particular, we will discuss Mashup metrics for design engineering and for corporate environments.

Verbesserte Entscheidungsqualität durch Enterprise Mashups

Als ein neues Entwicklungsparadigma sind in den letzten Jahren Enterprise Mashups auf grosses Interesse gestossen. Im Gegensatz zu serviceorientierten Architekturen versetzen Enterprise Mashups Benutzer aus den Fachabteilungen in die Lage, ad-hoc ihre eigenen Softwareanwendungen an gegebene Umweltbedingungen anzupassen und bedarfsgerecht um Funktionalitaten zu erweitern. Aber welcher okonomische Nutzen verbindet sich damit in konkreten Anwendungsfallen? Im vorliegenden Beitrag wird eine entscheidungs-orientierte Sichtweise eingenommen. Argumentiert wird, dass insbesondere die Entschei-dungsqualitat durch den Einsatz von Enterprise Mashups verbessert werden kann. Hierzu wird exemplarisch ein Modell zur Nutzenbewertung einer verbesserten Entscheidungsfindung aufgestellt und anhand eines Anwendungsfalls aus der Unternehmenssteuerung ver-anschaulicht.