Annotation Methods and Application Abstractions

Embedded system complexity is increasing with time. This impacts negatively the product development cycle (PDC). The increasing software and hardware concurrency, and need for architectural optimization, will also complicate PDC. Innovations in PDC are needed to reduce product cost and time-to-market. Modeling a system can help in addressing architect´s design concerns. To be effective in reducing PDC, a system model must incorporate performance parameters and quality of service (QoS) metrics of the modeled components. We discuss three different annotation methods for obtaining such metrics.