Title :
Issues in building dynamic real-time systems
Author :
Natarajan, Swaminathan ; Zhao, Wei
Author_Institution :
Dept. of Sci., Texas A&M Univ., TX, USA
Abstract :
The issues involved in building dynamic, hard real-time systems, in which resource availability and requirements are not fixed, are discussed. It is shown that the problem of ensuring timing correctness in dynamic real-time systems has three aspects: resource requirements, resource availability, and guarantees. These issues overlap, and a single mechanism or technique may address several issues. The R-Shell, an object-oriented framework that structures resources in a class hierarchy so that they can be selected or substituted dynamically is described.<>
Keywords :
object-oriented methods; object-oriented programming; operating systems (computers); real-time systems; resource allocation; R-Shell; class hierarchy; dynamic real-time systems; guarantees; object-oriented framework; resource; resource requirements; timing correctness; Availability; Computer applications; Data acquisition; Databases; Delay; Hardware; Radar applications; Radar tracking; Real time systems; Timing;
Journal_Title :
Software, IEEE
