In An Efficient Zero-One Formulation of the Multilevel Lot-Sizing Problem MCKNEW,SAY-DAM,and COLEMAN claim the polynomial solvability of this particular production planning problem. Both, the proof given by MCKNEW et al. and a statement of its incorrectness by RAJAGOPALAN contain errors, and the...

In this paper the issue of bidding strategy learning in electronicmarkets is addressed. The primary aim is to identify machine learningtechniques which are best suited to learn bidding behaviourin electronic markets. The developed methodologies are appliedwithin a structured market engineering...

Stable component models are an essential prerequisite for developingcustomer-individual business applications. Thereby the information for theidentification and specification of their components is gained from domainmodels. Reference models constitute a potential source for building...

This report presents a literature review on enterprise architecture principles. Itconsists of twelve articles published in journals and conference proceedings on enterprisearchitecture. The results show that there are various gaps in the research literature: Noaccepted definition of enterprise...

Observing that existing models of inter-organisational information systems (IOIS) have not been developedto explain IOIS variance, in this paper the authors develop three criteria a new theoretical framework shouldmeet: 1) It should support identification of and distinction between essential...

Business and information systems engineering (BISE) has established itself as a distinct sub-discipline “between” business sciences and computer science at least in the German-speaking countries. This primarily becomes obvious by two facts. First, the BISE section is one of the largest...

In the container relocation problem (CRP) n items are given that belong to G different itemgroups (g = 1,…,G). The items are piled up in up to S stacks with a maximum stack height H.A move can either shift one item from the top of a stack to the top of another one (relocation)or pick an item...

Analysis patterns have recently shown their great potential to enhance the set-up of models inobject-oriented analysis. This report attempts to summarise the present state of literature on thesubject of analysis patterns. It is organised in two main parts. In the first part, we present...

In this article we point at the large potentials that corporate community portals can have to support the business model of companies. In particular corporate community portals of the next generation are characterized by the integration of business intelligence tools which can facilitate or even...

The notions of collaborative information seeking (CIS) and socialsearch have extended the classical model of information seekingand retrieval. In its core, CIS and social search acknowledge theexistence of multiple users and study their implicit and explicitinteractions across various...