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Ítem Fiesta Toolkit: Model-Driven Software Product Lines in Practice(2010-09-01) Romero, AndresModel-Driven Software Product Lines (MD-SPLs) are those product lines whose members are created by using models and model transformations as first-class artifacts. In this paper we present the Fiesta toolkit, a set of tools to assist product line architects and products designers when creating MD-SPLs. The main characteristic of our toolkit is that it facilitates the creation of fine-grained configurations of products, i.e. configurations at the level of each element in models that will be transformed into product line members. For that, the toolkit includes a set of tools for the creation of MD-SPL projects, feature models, constraint models, binding models, OCL-type expressions to validate binding models against constraint models, and decision models.Ítem DYNAMICO: A Reference Model for Governing Control Objectives and Context Relevance in Self-Adaptive Software Systems(2010-10-24) Duchien, LaurenceDespite the valuable contributions on self-adaptation, most implemented approaches assume adaptation goals and monitoring infrastructures as non-mutable, thus constraining their applicability to systems whose context awareness is restricted to static monitors. Therefore, separation of concerns, dynamic monitoring, and runtime requirements variability are critical for satisfying system goals under highly changing environments. In this chapter we present DYNAMICO, a reference model for engineering adaptive software that helps guaranteeing the coherence of (i) adaptation mechanisms with respect to changes in adaptation goals; and (ii) monitoring mechanisms with respect to changes in both adaptation goals and adaptation mechanisms. DYNAMICO improves the engineering of self-adaptive systems by addressing (i) the management of adaptation properties and goals as control objectives; (ii) the separation of concerns among feedback loops required to address control objectives over time; and (iii) the management of dynamic context as an independent control function to preserve context-awareness in the adaptation mechanism. © 2013 Springer-Verlag.Ítem A framework for evaluating quality-driven self-adaptive software systems(ACM Press, 2011-05-23) Casallas, RubbyOver the past decade the dynamic capabilities of self-adaptive software-intensive systems have proliferated and improved significantly. To advance the field of self-adaptive and self-managing systems further and to leverage the benefits of self-adaptation, we need to develop methods and tools to assess and possibly certify adaptation properties of self-adaptive systems, not only at design time but also, and especially, at run-time. In this paper we propose a framework for evaluating quality-driven self-adaptive software systems. Our framework is based on a survey of self-adaptive system papers and a set of adaptation properties derived from control theory properties. We also establish a mapping between these properties and software quality attributes. Thus, corresponding software quality metrics can then be used to assess adaptation properties. © 2011 ACM.