Object Management Group (OMG). A Discussion of the Object Management Architecture, 1997. OMG Document 00-06-41.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....a range of useful services to communications. After the ORB is initialised, all CORBA objects can be invoked by applications just like local software objects. 2. 6 Object Management Architecture (OMA) The first key specification adopted by the OMG is the Object Management Architecture (OMA) [116]. It provides a complete architectural umbrella framework that puts all CORBA standards into context. The OMA is composed of an object model and a reference model. The object model defines how objects distributed across heterogeneous environments can be described, while the reference model ....

Object Management Group. A Discussion of the Object Management Architecture, rev. 3.0. Needham, MA, June 1997.

....CORBA The Object Management Group (OMG) www.omg.org) a consortium of software vendors, developers and end users, have specified an architecture to enable applications to interoperate in a heterogeneous, distributed computing environment. This is known as the Object Management Architecture (OMA) [3] (figure 2) Object Request Broker CORBA services Application Objects Domain Interfaces Common facilities Figure 2: Object Management Architecture Reference Model The OMA consists of components that define objects and their interfaces. It is centred around an Object Request Broker (ORB) ....

Object Management Group, A Discussion of the Object Management Architecture, Object Management Group, Framingham, MA, Jan. 1997. 11

....7 2.2 The DISIMA Architecture . 9 2.3 Querying Images . 11 2.3.1 MOQL . 11 2.3.2 VisualMOQL . 12 Distributed Object Oriented Computing Platform 16 3. 1 Overview of OMA [27] . 16 3.2 CORBA . 20 3.2.1 Overview . 20 3.2.2 OMG IDL . 26 3.2.3 Object Adapters . 32 3.2.4 ORB Interoperability . ....

....8 2.3 The DISIMA Architecture (Taken from [7] 9 2.4 VisualMOQL Interface . 14 2.5 Generated MOQL . 14 2.6 Query Results . 15 3. 10MA Reference Model: Interface Categories (Taken from [27]) 17 3.20MA Reference Model: Interface Usage (Adapted from [27] 20 3.3 The Structure of Object Request Interfaces (Adapted from [37] 21 3.4 Invoking and Dispatching Requests (Adapted from [37] 25 3.5 The OMG IDL Mappings (Taken from [44] ....

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Object Management Group, Inc. A Discussion of the Object Management Architecture. January 1997.

....objects. 2 Distributed Object Oriented Environments and Load Management 2. 1 Distributed Object Oriented Environments Distributed object oriented environments are based on some kind of object model which describes the general design principles of the middleware, its services, and applications[9][4] Generally, these environments consist of objects which are accessed by well defined interfaces. Similar to object oriented programming languages like Java or C , an object s interface consists of several methods which take some parameters as input and return a result. Invoking an object s ....

OMG (Object Management Group). A Discussion of the Object Management Architecture. Technical report, http://www.omg.org, 1997.

....functionality and implement the ticket management functions themselves. 3.3 Service Brokers Service brokers provide the necessary credentials for enabling a service, and encapsulate service management functions. Conceptually, this function is equivalent to the trading function as described in [14, 13, 8, 9]. The Internet Di serv architecture [2] also considers the Bandwidth Broker [21, 19] for managing network bandwidth. From the policy perspective, brokers are principals to which authority is delegated for managing a speci c policy subspace. The implementation issues here are how the broker that is ....

Object Management Group. A Discussion of the Object Management Architecture. January 1997.

....DSA will thus gain the interoperability and openness to other languages that it currently lacks. This is similar to OMG s proposal of using CORBA as a way to implement Java RMI [22] 4. 4 Related projects One objective of the Droopi project is to show that the Open Management Architecture (OMA [19]) is suitable to serve as a paradigm for interoperating various object oriented distribution platforms. While some of the richer semantics of speci c models may not be re ected by OMA abstractions, we claim that those aspects of a distributed system that can be described within the OMA are ....

Object Management Group. Discussion of the Object Management Architecture. Object Management Group, Jan. 1997. OMG formal/00-06-41.

....functionality and implement the ticket management functions themselves. 3.3 Service Brokers Service brokers provide the necessary credentials for enabling a service, and encapsulate service management functions. Conceptually, this function is equivalent to the trading function as described in [15, 13, 8, 9]. The Internet Di serv architecture [2] also considers the Bandwidth Broker [21, 19] for managing network bandwidth. From the policy perspective, brokers are principals to which authority is delegated for managing a speci c policy subspace. The implementation issues here are how the broker that is ....

Object Management Group. A Discussion of the Object Management Architecture. January 1997.

....the future to continue to scale and remain at the forefront of distributed object technology. One Repository to register them all, One Repository to find them, One Repository to start them all, and with IIOP bind them In the land of CORBA where the Objects lie. 1 INTRODUCTION CORBA s object model [4] relies to a large degree on the semantics of object references. An object reference uniquely identifies a local or remote object instance clients can only invoke an operation on an object if they hold a reference to the object. Object references can be converted into a string and transmitted ....

Object Management Group, A Discussion of the Object Management Architecture. Object Management Group, Framingham, Mass., 1997.

.... more specialized but, at the same time, there is a lot of emphasis on the integration of different components into global environments [18] and then into global processes [6,11,21] Internet technology offers an unprecedented interconnection capability [12] that distributed object architectures [14,16,18] exploit in order to boost the creation of domain focused and location transparent environments [4,19] LAN based Intranets and even isolated workstations offer a great potential in terms of process centered environments: the cooperation and coordination aspects become crucial [1,2,3] While in ....

....abstraction is fundamental for the modularization of applications but its impact on software architecture goes beyond the boundaries of a single application. Object models like COM (Component Object Model) by Microsoft [18] the OMA (Object Management Architecture) by OMG (Object Management Group) [14] and Java RMI (Remote Methods Invocation) 16] enforce two major aspects of an application: strong modularization (components) and location transparency. Although location transparency is quite important for application components, the big impact of distributed object technologies on ....

Object Management Group (OMG). A discussion of the object management architecture. January 1997.

.... on the way in which processes are designed and a lot of emphasis is on the integration of different components into global environments [16] and then into global processes [6,10,18] Internet technology offers an unprecedented interconnection capability [11] that distributed object architectures [13,15,16] exploit in order to boost the creation of domain focused and location transparent environments [4,17] the cooperation and coordination aspects become crucial [1,2,3] In this scenario, a new layer of management (PCE 2 ) is needed in order to support projects involving multiple competencies and ....

....together with the federation basic infrastructure, PCE interfacing solutions and deployment facilities. 2 Distributed Object Architectures Object models like DCOM (Distributed Component Object Model) by Microsoft [16] the OMA (Object Management Architecture) by OMG (Object Management Group) [13] and Java RMI (Remote Methods Invocation) 15] enforce two major aspects of an application: strong modularization (components) and location transparency. Although location transparency is quite important for application components, the big impact of distributed object technologies on ....

Object Management Group (OMG). A discussion of the object management architecture. January 1997.

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Object Management Group (OMG). A Discussion of the Object Management Architecture, 1997. OMG Document 00-06-41.

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Object Management Group. Discussion of the Object Management Architecture, formal/00-06-41, January 1997.

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Object Management Group, A discussion of the Object Management Architecture, January 1997

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