Quality of Service Models for Microservices and Their Integration into the SWITCH IDE

As demands on new software increase, new approaches are needed to help developers ensure Quality of Service (QoS) for their offered service. In this paper we present a QoS modeling approach that complements and extends the standard microservice and component-based software engineering tools by giving the software engineer information on what Non-Functional Requirements (NFRs) and quality constraints have critical influence on QoS. This concept extends the co-programing concept of programing the software and infrastructure with the ability to do this in a more informed manner. The result of this are Qualitative Metadata Markers (QMM) that provide guidelines for changing the infrastructure that can be used by humans or specialized decision-making algorithms.