Context-Specific Middleware Specialization Techniques for Optimizing

Product-line architectures (PLAs) are an emerging paradigm for de-veloping software families for distributed real-time and embedded (DRE) systems by customizing reusable artifacts, rather than hand-crafting software from scratch. To reduce the effort of developing software PLAs and product variants for DRE systems, developers are applying general-purpose – ideally standard – middleware plat-forms whose reusable services and mechanisms support a range of application quality of service (QoS) requirements, such as low latency and jitter. The generality and flexibility of standard mid-dleware, however, often results in excessive time/space overhead for DRE systems, due to lack of optimizations tailored to meet the specific QoS requirements of different product variants in a PLA. This paper provides the following contributions to the study of middleware specialization techniques for PLA-based DRE systems