Important Characteristics Of Real Time Software Architecture

The system is a real time data provider for monitoring in real time small and medium size.

Important characteristics of real time software architecture.

It also presents an overview of the specific functions ahd pro cesses of the moss operating system. A typical software architecture of a real time system will be discussed including all major components. If new experiments are conceived which require including additional features to the gui or new characteristics are explored which need gui reorganization this can be done on the fly without jeopardizing the operation of an ongoing experiment or process. The architecture defines constraints on implementation.

It is a soft real time system where some of the events may miss their deadline without affecting the whole system s behavior. In the end this is the way we view it at mentum. All of these quality features can be. 139 6 safety related software architecture another important category of real time systems is that including mission critical or safety related systems 3 25 26 38.

Describing architecture software architecture can be very complicated and therefore difficult to describe as a whole. Key words and phrases. Operating system design real time operating system layered operating system software architecture and process communication. In this work we are concerned only with the external internal quality model representing the user and developer views respectively.

These early decisions are the most difficult to get correct and the hardest to change later in the development process and they have the most far reaching effects. The quality of the environment where the software is running is considered by the quality in use model which is the user s view of quality in a specific context of use. Embedded real time systems also timeliness predictability and efficiency are important. These attributes mean that the real time constraints must be enforced the system must work as intended with given input and that any limited resources are not wasted excessively.

Software architecture represents a system s earliest set of design decisions. Basically a real time system is characterized by correctness that involves both the logical outputs correctness and timeliness. External process interface user interface communication link mass storage handler processing component and timer. This is known as the response time and it lies within a predetermined value in all possible situations.

The primary goal of a real time monitoring system is to capture to analyze and to broadcast events data in real time. A critical real time system requires adequate time for processing an external stimulus.