Eliciting the requirements for a proposed system typically involves different stakeholders with different expertise, responsibilities, and perspectives. Viewpoints-based approaches have been proposed as a way to manage incomplete and inconsistent models gathered from multiple sources. In this paper, we propose a category-theoretic framework for the analysis of fuzzy viewpoints. Informally, a fu...

One of the problems a requester faces when crowdsourcing a microtask is that, due to the underspecifie or ambiguous task description, workers may misinterpret the microtask at hand. We call a set of such interpretations worker viewpoints. In this paper, we argue that assisting requesters to gather a worker’s interpretation of the microtask can help in providing useful feedback to designers, who...

Viewpoints are coherent collections of facts that describe a concept from a particular perspective. They are essential for a wide variety of tasks, such as explanation generation and qualitative modeling. We have identified many types of viewpoints and developed a program, the View Retriever, for extracting them from knowledge bases, either singly or in combinations. The View Retriever provides...

For many practical applications that use camera images and active viewpoint selection to create telepresence it is important to restrict the number of selectable viewpoints. Previous experiments showed that the Delft Virtual Window System can be adapted to work with a small number of selectable viewpoints. For simple scenes and a connectivity task, only three viewpoints proved sufficient, altho...

Severalmetrics in the supply chain performance assessment system cannot be uncovered by merely putting a strategy into action. Meanwhile, balanced scorecard strategynecessitates incorporation of numerous measures derived from implementation strategies,ultimately guidingthe business towardits long-term orientation. The same is true for evaluating effectiveness chain. Business Service Chain (BSC)...