A. Meckenstock, et al.. 1992 "Concept and Architecture of a Distributed Object-Oriented Datebase Kernel", Cadlab Report 13/92, Cadlab, Paderborn.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....other team members, who work in parallel. Each designer is online informed about all design actions and status changes caused by any team member at the desired level of detail. Our design management component is tightly integrated into the JESSI Common Framework Object Management System (JCF OMS) (Meckenstock et al. 1992; Steinmuller 1992) like the design tools it controls. But the approach is generally applicable for frameworks providing similar functionality. Via the notification mechanism provided by the framework, design actions of arbitrary granularity can be online monitored by the design management ....

A. Meckenstock, et al.. 1992 "Concept and Architecture of a Distributed Object-Oriented Datebase Kernel", Cadlab Report 13/92, Cadlab, Paderborn.

....in traditional programming languages to simultaneously access persistent data. It has a client server architecture which manages chunks of untyped data called bags. O 2 O 2 [21] is an object oriented database system which uses WiSS for storage but supports clientserver distribution. OMS OMS [22] is a distributed object oriented database kernel designed for applications such as office automation, multimedia systems and design environments. It uses an extended version of WiSS to provide distributed storage services. Bullet Bullet [23] is the file server component of the Amoeba [24] ....

A. Meckenstock et al. Concept and Architecture of a Distributed Object-Oriented Database Kernel. Technical Report 13/92, Cadlab, Bahnhofstr. 32, D 4790 Pederborn, Germany, March 1992.

....design actions is overcome by DECOR. DECOR provides generic design monitoring and control facilities that allow online monitoring of design actions down to the granularity of single object manipulations. DECOR is tightly integrated into the JCF OMS (JESSI Common Framework Object Management System) [10, 12] using the same integration strategy as applicable for the design tools themselves [9] As it does not rely on any intrinsics of the underlying framework the approach may be easily adapted to other frameworks providing similar mechanisms as the JCF OMS. DECOR uses an extension of Predicate ....

A. Meckenstock, et al., "Concept and Architecture of a Distributed Object-Oriented Datebase Kernel", Cadlab Report 13/92, Cadlab, Paderborn, 1992

....3.2 presents our simultaneous editing technology based on a tight integration into the JCF OMS. 3. 1 JCF Object Management System The JCF Object Management System (OMS) is an active object oriented database kernel (OODBK) dedicated to network wide distributed multi user CAx 1 applications (Meckenstock et al. 1992). The process model of the OMS is based on a client server architecture. Clients are connected to the server via communication channels. There are two basic servers that build up the OODBK: the object manager and the event manager. The object manager (OM) takes over the administration of objects ....

Meckenstock, A., et al., 1992. "Concepts and Architecture of a Distributed Object-Oriented Database Kernel." Cadlab External Report, Cadlab, Paderborn.

....implementation details. Finally, we summarize our experience in the conclusions. 2 THE JCF OBJECT MANAGEMENT SYSTEM The JESSI COMMON FRAMEWORK (JCF) Object Management System (OMS) is an active objectoriented database kernel (OODBK) dedicated to network wide distributed multi user CAx applications (Meckenstock et.al. 1992). The process model of the OMS is based on a clientserver architecture. Clients are connected to the server via communication channels. There are two basic servers that build up the OODBK: the object manager and the event manager. The object manager (OM) takes over the administration of objects ....

Meckenstock, A., et.al., 1992, "Concepts and Architecture of a Distributed Object-Oriented Database Kernel, " Technical Report, Cadlab, Paderborn, Germany.

....is structured as follows. At first Predicate Transition Nets and our extensions are introduced, followed by a brief overview of modelling principles for design processes. Afterwards the architecture of DECOR and its integration into the JCF OMS (JESSI Common Framework Object Management System) [12, 14] is described followed by a more detailed explanation of some features of DECOR. The conclusion will summarize the achieved results. 2 Extended Predicate Transition Nets In this section we will give an informal introduction to Predicate Transition Nets [8] and our extensions. Predicate Transition ....

....For each user a process of this type may be active to allow different users to interact independently with the Execution Monitor. Figure 4 indicates that the components of DECOR are integrated into the framework consisting of the JESSI Common Framework Object Management System (JCF OMS) [12] and the Cadlab User Interface Management System [9] in the same way as the design tools, that are monitored by DECOR. Before we describe the integration in more detail an overview of the JCF OMS will be given. 4.1 The JESSI Common Framework Object Management System The JCF OMS is a distributed, ....

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Meckenstock, A., et al., "Concept and Architecture of a Distributed ObjectOriented Database Kernel", Cadlab Report 13/92, Cadlab, Paderborn, 1992

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A. Meckenstock, D. Zimmer, W. Fox, Z. Hern'ath, R. Hopp, T. Kathofer, D. Nolte, K. Pielsticker, G. Reitmeyer, F. Rupprecht, and M. Schrewe. Concept and Architecture of a Distributed Object-Oriented Database Kernel. CADLAB Report 13/92, March 1992.

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