As the basis of value creation and success of organizations increasingly depends on the leverage of knowledge available internally, knowledge management systems (KMS) are emerging as vital tools for competitive advantage. Among these KMS, corporate portals present the potential of providing organizations with a rich and complex shared information workspace for the generation, exchange, and use of knowledge. But developing corporate portals and building the critical mass of users required to make them successful is not an easy task. In this paper, drawing upon the literature review and an analysis of early adopters of corporate portals, we address the strength of this tool which consists mainly in synchronizing and supporting knowledge processes, put the emphasis on factors inhibiting its adoption by companies and finally propose some perspectives for a successful implementation. r

The misalignment of information systems (IS) components with the rest of an organization remains a critical and chronic unsolved problem in today's complex and turbulent world. This paper argues that the coevolutionary and emergent nature of alignment has rarely been taken into consideration in IS research and that this is the reason behind why IS alignment is so difficult. A view of IS alignment is presented about organizations that draws and builds on complexity theory and especially its focus on coevolution-based selforganized emergent behaviour and structure, which provides important insights for dealing with the emergent nature of IS alignment. This view considers Business/IS alignment as a series of adjustments at three levels of analysis: individual, operational, and strategic, and suggests several enabling conditions -principles of adaptation and scale-free dynamicsaimed at speeding up the adaptive coevolutionary dynamics among the three levels.

Purpose-Existing literature acknowledges information systems development (ISD) to be a complex activity. This complexity is magnified by the continuous changes in user requirements due to changing organizational needs in changing external competitive environments. Research findings show that, if this increasing complexity is not managed appropriately, information systems fail. The paper thus aims to portray the sources of complexity related to ISD and to suggest the use of complexity theory as a frame of reference, analyzing its implications on information system design and development to deal with the emergent nature of IS. Design/methodology/approach-Conceptual analysis and review of relevant literature. Findings-This article provides a conceptual model explaining how top-down "official" and bottom-up "emergent" co-evolutionary adaptations of information systems design with changing user requirements will result in more effective system design and operation. At the heart of this model are seven first principles of adaptive success drawn from foundational biological and social science theory: adaptive tension, requisite complexity, change rate, modular design, positive feedback, causal intricacy, and coordination rhythm. These principles, translated into the ISD context, outline how IS professionals can use them to better enable the co-evolutionary adaptation of ISD projects to changing stakeholder interests and broader environmental changes. Originality/value-This paper considers and recognizes the different sources of complexity related to ISD before suggesting how they could be better dealt with. It develops a framework for change to deal with the emergent nature of ISD and enable more expeditious co-evolutionary adaptation.

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