Distinguishing features and potential roles of the RTO.k object model

Kim, K.H.; Bacellar, L.; Kim, Yuseok; Choi, Dong-Hoon; Howell, Shaun; Jenkins, Marcelo

doi:10.1109/words.1994.518669

Cited by 53 publications

(14 citation statements)

References 15 publications

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“…The TMO scheme is a generalstyle RT distributed computing extension of the conventional OO design / programming approach [Kim94,Kim97,Kim99,Kim00,Kim02b,Kim03a]. It has been established to facilitate RT distributed software engineering in a form which software engineers in the vast business software field can adapt to with small efforts.…”

Section: The Time-triggered Message-triggered Object (Tmo) Schemementioning

confidence: 99%

“…In recent years, a new direction for RT simulation which is conceptually simple and easy to use but widely applicable, has been formulated. This theme called the distributed time-triggered simulation (DTS) scheme [Kim94,Kim97,Kim01,Kim04a] is highly promising in enabling attractively simple practical approaches to parallel and distributed RT simulation. The DTS scheme is a byproduct of the recent efforts by the first co-author and his collaborators for establishing a sound technology for synthesis of RT object-oriented (OO) distributed software, called the Time-triggered Message-triggered Object (TMO) specification and programming scheme [Kim97b.…”

Section: Introductionmentioning

confidence: 99%

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Facilitating distributed time-triggered simulation of embedded systems and environments

Kim

Jenks

2005

19th IEEE International Parallel and Distributed Processing Symposium

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The distributed time-triggered simulation (DTS) scheme is a new type of an approach to real-time simulation based on parallel / distributed computing. It requires a global time base which provides consistent real-time information to application software running on distributed nodes. The exploitation of its full potential requires advanced computing platforms such as highly parallel computing platforms. Recent developments in the scientific foundation for DTS and the execution engines and programming tools supporting DTS are briefly reviewed.

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Section: The Time-triggered Message-triggered Object (Tmo) Schemementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Facilitating distributed time-triggered simulation of embedded systems and environments

Kim

Jenks

2005

19th IEEE International Parallel and Distributed Processing Symposium

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“…Based on the initial abstract framework formulated in late 1980s, a concrete syntactic structure associated with precise execution semantics was developed in recent years [11], [14]. The basic structure of a TMO is depicted in Fig.…”

Section: Backgrounds On the Tmo Structuring Schemementioning

confidence: 99%

“…The first is to present an architecture for distributed RT information systems (DiRTISs) that addresses the two major issues mentioned above, i.e., pervasive application of OO structuring and timeliness-guaranteed dynamic configuration management. To fully realize the potential of OO structuring in DiRTISs, we propose to use the recently developed extension of the widely practiced basic object structuring scheme, called the time-triggered message-triggered object (TMO) structuring scheme [11], [14]. A set of fundamental types of RT data server objects and their replicas that can be efficiently structured by use of the TMO scheme are presented.…”

Section: Introductionmentioning

confidence: 99%

Dynamic configuration management in reliable distributed real-time information systems

Kim

Subbaraman²

1999

IEEE Trans. Knowl. Data Eng.

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Large-scale information systems emerging in challenging application fields must meet the high standards of reliability, maintainability, and service interruption bound requirements. Their operations are entirely, or partially, of the distributed real-time data object manipulation type. A new architecture for such systems is presented in this paper. The original aspects of the architecture are mainly in two parts: 1) the time-triggered message-triggered object (TMO) structuring of the middleware and the application software of distributed real-time information systems; and 2) the dynamic configuration management subsystem (DCMS), based on the supervisor-based network surveillance (SNS) scheme. The positive impacts of this TMO structuring on maintainability and service interruption bounds are first discussed, with distributed replicated information service systems and other systems as examples. Then, the main discussion dwells on the DCMS architecture¦in particular, formal presentation of its key component: the SNS scheme. As a component of DCMS, the network surveillance (NS) subsystem enables fast learning by each interested fault-free node in the system of the faults or repair completion events occurring in other parts of the system. Currently, concrete real-time NS schemes effective in distributed systems based on point-to-point network architectures are scarce. The SNS scheme presented in this paper is a semicentralized real-time NS scheme effective in a variety of point-to-point networks. This scheme is highly scalable. An efficient implementation model for the SNS scheme is presented that can be easily adapted to various commercial operating system kernels. This paper also presents a formal analysis of the SNS scheme, on the basis of the implementation model, to obtain its strongly competitive tight bounds on the fault detection latency. Finally, some DCMS implementation issues are discussed that remain to be addressed in future research.

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“…In recent years, there have been several efforts [Att91,Ish90,Tak92,Kim94] for extending conventional object structuring approaches into distributed software component structuring approaches that allow explicit specification of action timing requirements. One such sharable component structuring approach adopted by us is called the Time-Triggered Message-Triggered Object (TMO) structuring scheme [Kim94,Kim97b].…”

Section: Introductionmentioning

confidence: 99%

An efficient middleware architecture supporting time-triggered message-triggered objects and an NT-based implementation

Kim¹,

Ishida²,

Liu³

Proceedings 2nd IEEE International Symposium on Object-Oriented Real-Time Distributed Computing (ISORC'99) (Cat. No.99-61702)

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The time-triggered message-triggered object (TMO) structuring scheme has been established to remove the limitation of conventional object structuring techniques in developing applications containing realtime (RT) distributed computing components. It is a natural and syntactically small but semantically powerful extension of the object oriented (OO) design and implementation techniques which allows the system designer to abstractly and yet accurately specify timing characteristics of data and function components of highlevel distributed computing objects. It is a unified approach for design and implementation of both RT and non-RT distributed applications. A cost-effective way to support TMO-structured distributed RT programming is to build a TMO execution engine as a middleware running on well established commercial software/hardware platforms. In this paper, we present an efficient middleware architecture named TMO Support Middleware (TMOSM) which can be easily adapted to many commercial-off-the-shelf (COTS) platforms. The performance of a prototype implementation of TMOSM running on Windows NT platforms is also discussed.

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Distinguishing features and potential roles of the RTO.k object model

Cited by 53 publications

References 15 publications

Facilitating distributed time-triggered simulation of embedded systems and environments

Facilitating distributed time-triggered simulation of embedded systems and environments

Dynamic configuration management in reliable distributed real-time information systems

An efficient middleware architecture supporting time-triggered message-triggered objects and an NT-based implementation

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