Transaction integration for reusable hard real-time components

The paper presents a strategy for the composition of components to meet `end to end´ timing requirements. This is a framework based approach known as transaction integration. A framework is constructed through the use of transactions. A transaction represents a control and data flow path across a set of component interfaces, or placeholders, that must be completed by a specific deadline. Reusable real time components are `plugged´ into each placeholder. The paper provides techniques to verify that the performance characteristics of each placeholder, and the `end to end´ deadlines associated with each transaction are met