One important use case for (business) process technology is process compliance. We propose that managing security objects such as cryptographic keys is an application domain that can greatly benefit from using process technology because of a critical compliance requirement. To this end, we present a BPMN extension and a design of a support system for key management processes. Both were driven by a case study on a distributed application using a standard hierarchical public key infrastructure, which we also present. Our prototypical implementation of the support system shows that process compliance for security object management processes can be substantially supported with moderate effort by extending the standard process technology.

Engineering green software-intensive systems is critical in our drive towards a sustainable, smarter planet. The goal of green software engineering is to apply green principles to the design and operation of software-intensive systems. Green and self-greening software systems have tremendous potential to decrease energy consumption. Moreover, enterprise software can and should be re-thought to address sustainability issues using innovative business models, processes, and incentives. Monitoring and measuring the greenness of software is critical towards the notion of sustainable and green software. Demonstrating improvement is paramount for users to achieve and affect change. Thus, the theme of GREENS 2015 is Towards a Green Software Body of Knowledge. The GREENS workshop series brings together researchers and practitioners to discuss both the state-of-the-art and state-of-the-practice in green software, including novel ideas, research challenges, methods, experiences, and tools to support the engineering of sustainable and energy efficient software systems.

ICT accounts for approximately 2% of world CO2 emissions, a figure equivalent to aviation, according to Gartner estimates. In the remaining 98% software counts for both operationalizing the private sector in doing its business and the public sector in supporting the society, as well as delivering enduser applications that permeate personal life of individuals and families. Software can contribute to decrease power consumption (i.e., become greener) in at least two ways. First, by being more energy efficient, hence using fewer resources and causing fewer CO2 emissions. Second, by making its processes more sustainable, i.e. decreasing the emissions of governments, companies and individuals. To this end, enterprise software must be rethought to address sustainability issues and support innovative business models and processes. The special theme of the second edition of GREENS is “Leveraging energy efficiency to software users”. This workshop brings together software engineering researchers and practitioners to discuss the state-of-the-art and state-of-the-practice in green software, as well as research challenges, novel ideas, methods, experiences, and tools to support the engineering of sustainable and energy efficient software systems.