Response time prediction in object-based, parallel embedded systems

Stoyenko, Alexander D.; Welch, Lonnie R.; Cheng, Bo

doi:10.1016/0165-6074(94)90081-7

Cited by 9 publications

(1 citation statement)

References 27 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…loose coupling of software components) [Sitaraman et al 1993], abstraction (highly cohesive modules), and ease of understandability. Another benefit of layering is the simplification of analyses for concurrency and timing properties [Welch 1993[Welch , 1994Verhoosel et al 1993Verhoosel et al , 1995Stoyenko et al 1994] and dependability [Marlowe et al 1994].…”

Section: Introductionmentioning

confidence: 99%

Metrics for assessment of designs and implementations during reengineering of computer-based systems

Welch

Verhoosel

et al. 1995

Ann Software Eng

View full text Add to dashboard Cite

Modem computer-based systems have many required characteristics, including performance, concurrency, timeliness, availability, dependability, safety and security. Aging computer-based systems are being reengineered to exploit distributed and highly parallel hardware platforms, in order to accommodate increased functional requirements and to achieve dependability. Simultaneously, reengineering is introducing modem software engineering principles such as component layering, encapsulation and information hiding, in order to reduce maintenance burdens and to simplify future enhancement. This paper summarizes a process for reengineering of computer-based systems to achieve these goals. The process incorporates experience gained through the reengineering of the Weapons Selection module and the Surface Operations module of the AEGIS Weapon System. A key component of the reengineering process is the mission critical software architecture (MCSA), a hierarchical view of systems that includes the abstraction levels of programs, tasks, packages, procedures, and statements. To guide the reengineering processes of software transformation, concurrency metrics are defined at the procedure, package and task levels of the MCSA. The paper defines the intermediate representation (IR) needed to compute the metrics, and shows how to use the IR to compute several metrics: the percentage of concurrency within procedures and packages, and the amount of potential concurrency among tasks. The metrics are important in any reengineering approach that iteratively transforms design and code, or that deals with system configuration (the integration of software, hardware and humanware).

show abstract

Section: Introductionmentioning

confidence: 99%

Metrics for assessment of designs and implementations during reengineering of computer-based systems

Welch

Verhoosel

et al. 1995

Ann Software Eng

View full text Add to dashboard Cite

show abstract

Schedulability-analyzable exception handling for fault-tolerant real-time languages

et al. 1994

View full text Add to dashboard Cite

A model for scheduling of object-based, distributed real-time systems

et al. 1995

View full text Add to dashboard Cite

This paper describes a general model for pre-run-time scheduling of distributed real-time systems that are composed of abstract data types (definable in languages such as Ada, Clu and Modula-2) and abstract data objects (which can be defined in C++, Eiffel and RT Euclid). An architecture model, a programming paradigm, and execution and communication paradigms form the basis for this general model. The model includes absolute timing constraints to represent periodicity and deadlines, relative timing constraints to model several kinds of timed precedence relations and synchronization requirements, independency constraints to capture non-determinism of conditionals and repetitions, and consistency constraints to enforce consistent use of resources. In this paper, the model is formalized to obtain a mathematical foundation on which assignment (Verhoosel et al. 1993a) and pre-rua-fime scheduling problems (Verhoosel et al. I991, Verhoosel 1992, 1993a, 1993c are defined. Additionally, the model is extended to allow exploitation of parallelism fl'om programs, a technique that can be used during assignment and scheduling for meeting timing constraints.

show abstract

Response time prediction in object-based, parallel embedded systems

Cited by 9 publications

References 27 publications

Metrics for assessment of designs and implementations during reengineering of computer-based systems

Metrics for assessment of designs and implementations during reengineering of computer-based systems

Schedulability-analyzable exception handling for fault-tolerant real-time languages

A model for scheduling of object-based, distributed real-time systems

Contact Info

Product

Resources

About