Pollinators such as bees are attracted to flowers by their visual display and their scent. Although most flowers reinforce visits by providing pollen and/or nectar, there are species--notably from the orchid family--that do not but do resemble rewarding species. These mimicry relationships...

Modern enterprises make use of distributed service-based IT infrastructures to handle their day-to-day business. To remain competitive, IT-services have to be performed of high-quality but cost-effective. However, today's productive large-scale system environments suffer from an enormous...