Model-Based Systems Engineering (MBSE) is an emerging engineering discipline whose driving motivation is to provide support throughout the entire system life cycle. MBSE not only addresses the engineering of software systems but also their interplay with physical systems. Quite frequently, successful systems need to be customized to cater for the concrete and specic needs of customers, end-users, and other stakeholders. To eectively meet this demand, it is vital to have in place mechanisms to cope with the variability, the capacity to change, that such customization requires. In this paper we describe our experience in modeling variability using SysML, a leading MBSE language, for developing a product line of wind turbine systems used for the generation of electricity.

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Abstract. Desktop tools are steadily being turned into web applications. Tool integration then becomes a question of website integration. This work uses Web Augmentation techniques for this purpose. An integration layer is deployed on top of the existing Web-based tools that augments the rendering of those tools for the integration experience. Layers are specified through a statechart-like DSL and transformed into JavaScript.

The Web is becoming a main conduit for our daily activities. When an activity expands across different websites, the user is left alone in the effort to aggregate the resources and services required in carrying out these cross-site activities. This results in a lost of focus, and constant switching among websites. The problem is that these webflows tend to be highly personal and hence, difficult to foreseen. Therefore, we advocate for users to be empowered to define these roadmaps upon the websphere. This work introduces CORSET, a Firefox plugin that lets users create their own webflows in the browser side. A corset is defined as a statetransition diagram, and results in "layer hyperlinks" being superimposed upon the participating websites. The expressiveness of CORSET is validated against four webflow patterns: the hub-and-spoke pattern, the guided-tour pattern, the parallel pattern and the interruption pattern. The benefits include (1) mitigation of activity fragmentation, (2) consolidation of webflow knowledge that is now amenable to sharing, (3) reduction in the number of clicks, and (4), alleviation of waiting times through page pre-load.

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