Agricultural water management in a water stressed catchment: Lessons from the RIPARWIN Project

irrigation management / water stress / river basins / water rights / water fees / water allocation / irrigation efficiency / economic aspects / decision support tools / wetlands / water use / water users associations

Visualizing Large Business Process Models: Challenges, Techniques, Applications

Large process models may comprise hundreds or thousands of process elements, like activities, gateways, and data objects. Presenting such process models to users and enabling them to interact with these models constitute crucial tasks of any process-aware information systems (PAISs). Existing PAISs, however, neither provide adequate techniques for visualizing and abstracting process models nor for interacting with them. In particular, PAISs do not provide tailored process visualizations as needed in complex application environments. This paper presents examples of large process models and discusses some of the challenges to be tackled when visualizing and abstracting respective models. Further, it presents a comprehensive framework that allows for personalized process model visualizations, which can be tailored to the specific needs of the different user groups. First, process model complexity can be reduced by abstracting the models, i.e., by eliminating or aggregating process elements not relevant in the given visualization context. Second, the appearance of process elements can be customized independent of the process modeling language used. Third, different visualization formats (e.g., process diagrams, process forms, and process trees) are supported. Finally, it will be discussed how tailored visualizations of process models may serve as basis for changing and evolving process models at a high level of abstraction

Same Words, Different Meanings: Are Basic IS/IT Concepts Our Self-Imposed Tower Of Babel?

This article began as a response to an exchange of letters concerning the need for more vs. less user participation in IS projects. It grew into an exploration of whether and how ten 1999 CAIS articles use basic IS/IT terms with different meanings and connotations related to the different perspectives of their authors. The article characterizes differences between an IT perspective and a business perspective and categorizes the ten articles accordingly. It then presents numerous quotes from the articles to illustrate differences across the articles in terms of their use of eight basic concepts: system, user, stakeholder, IS project, implementation, reengineering, requirements, and solution. To help understand the differences and their significance, the article makes extensive use of distinctions between work systems, information systems, and projects. When applied to the articles these distinctions raise questions such as whether the term system refers to a work system, information system, or software, and whether the term user refers to hands-on users, people who receive information, or managers whose organizations use information systems. An underlying theme throughout is that the lack of conscious attention to the meaning of basic terms and points of reference may be a significant impediment to effective communication and to our ability to make sense out of research findings and even journalistic anecdotes about what seemed to work or not work in particular situations. NOTE: THIS ARTICLE IS A FOLLOW UP TO ALTER\u27S ARTICLE 13 IN VOLUME 1 OF CAIS ON THE THEORY OF I

RETHINKING THE BUSINESS PROCESS THROUGH REENGINEERING

Rethinking business through reengineering is based on the assumption that to meet contemporary demands of quality, service, flexibility, and low cost, processes must be kept simple. Examples of simplifying processes are combining several jobs into one, letting workers make decisions, performing the steps in a process in a natural order, and performing work where it makes the most sense. The net result is that work may be shifted across functional boundaries several times to expedite its accomplishment. Traditional inspection and control procedures are often eliminated or deferred until the process is complete, providing further cost savings. The authors, focusing their research on enterprises from Oltenia Region, demonstrate how reengineering can be carried out in a variety of corporate settings. But although workers are the ones who need to be empowered to carry out reengineering, the authors are adamant that the process must start at the top. This is because it involves making major changes that are likely to cut across traditional organizational boundaries. Those empowered to make the changes at lower levels must know they have the support of top management, or change won�t occur.reengineering, rethinking business processes, regional economy, leadership, organization

Structuring Decisions Under Deep Uncertainty

Innovative research on decision making under ‘deep uncertainty’ is underway in applied fields such as engineering and operational research, largely outside the view of normative theorists grounded in decision theory. Applied methods and tools for decision support under deep uncertainty go beyond standard decision theory in the attention that they give to the structuring of decisions. Decision structuring is an important part of a broader philosophy of managing uncertainty in decision making, and normative decision theorists can both learn from, and contribute to, the growing deep uncertainty decision support literature

The Proviado Access Control Model for Business Process Monitoring Components

Integrated process support is highly desirable in environments where data related to a particular business process are scattered over distributed, heterogeneous information systems. A business process monitoring component is a much-needed module in order to provide an integrated view on all these process data. Regarding process visualization and process data integration, access control (AC) issues are very important but also quite complex to be addressed. A major problem arises from the fact that the involved information systems are usually based on heterogeneous AC components. For several reasons, the only feasible way to tackle the problem of AC at the process monitoring level is to define access rights for the process monitoring component, hence getting rid of the burden to map access rights from the information system level. This paper presents the Proviado process visualization framework and discusses requirements for AC in process monitoring, which we derived from our case studies in the automotive domain. It then presents alternative approaches for AC: the view-based and the object-based approach. The latter is retained, and a core AC model is proposed for the definition of access rights that meet the derived requirements. AC mechanisms provided within the core model are key ingredients for the definition of model extensions