Wegner, Peter. Frameworks For Active Compound Documents. Providence, Rhode Island: Brown University Department of Computer Science, 1997.  Home/Search   Document Not in Database   Summary   Related Articles   Check

....that objects provide, distributed objects are a fundamentally sound unit from which to build client server applications in which separation of data is important. Cooperating objects form the logic portion of most substantial client server systems since they offer rich interaction services [We1, We2]. The flexibility of granularity offered by components should not be overlooked. Objects can be as small as required to provide the correct degree of mixing of services, or as large and complex as required to encapsulate completely the logic of a particular system segment without unwarranted ....

....between components and customize their documents to create robust applications. Scripts can be used to replace traditional code, allowing the client component of a client server system to be implemented as a compound document; intelligent active compound documents can also be crafted using scripts [We1]. The possibilities for scripts are wide ranging: password protection for documents, personalized document views, and active data gathering are just a few examples. Using scripts in conjunction with compound documents allows users to create documents that can manage themselves and be ....

Wegner, Peter. Frameworks For Active Compound Documents. Providence, Rhode Island: Brown University Department of Computer Science, 1997.

....that objects provide, distributed objects are a fundamentally sound unit from which to build client server applications when separation of data is important. Cooperating objects form the logic portion of most substantial client server systems because of the rich interaction services they offer [Wegner 1997a; 1997b] The flexibility of granularity offered by components should not be overlooked. Objects can be as small as required to provide the correct degree of mixing of services, or as large and complex as required to encapsulate completely the logic of a particular system segment without unwarranted ....

....5 DCOM does not support the traditional notion of an object. DCOM objects do not have a state; rather, they are collections of interfaces. One could liken this to a collection of algorithms, suggesting that a DCOM object is inherently not as powerful a computing machine as a CORBA object [Wegner 1997b] When a reference to a DCOM object is requested, the handle is arbitrary; a subsequent request for the same object may yield a different handle connecting the client with an equivalent interface. DCOM supports a registry of available interfaces for objects to reference, and even provides ....

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WEGNER, P. 1997. Frameworks For Active Compound Documents. Brown University Department of Computer Science, Providence, RI.

....interacting with each other in order to fulfill application functionality. Some concepts are usually present when speaking of configuration. Component is the basic element of configuration. These elements can have a mapping to a piece of software developed in a programming language. In [3] components are defined as entities with persistent identity and interfaces whose observable behavior is governed by a state. Components are almost never self contained and usually interacting with other components. Component Connection supports cooperation between components. Only components ....

Peter Wegner. Frameworks for Active Compound Documents. Technical report, Brown University, 1997.

....intelligence is compared to the robustness of Turing machines. Less technical discussion of these ideas may be found in [We1, We2, We3] Applications of interactive models to coordination, objects and components, patterns and frameworks, software engineering, and AI are examined elsewhere [We5, We6]. The propositions P1 to P36 embody the principal claims, while observations O1 through O40 provide additional insights. Interactive Foundations of Computing Final Draft 2 25 Interactive Foundations of Computing Peter Wegner, Brown University, April 1997 Part I: Models of Interaction Part I ....

.... Constraints make no assumption about the behavior being constrained, specifying desired behavior by progressively constraining the superset of all possible behavior to a desired form, just as a sculptor progressively removes material from a block of marble until the desired form emerges [We6]. Constraint specification is dual to constructive specification from primitives, capturing emergent noncompositional behavior not expressible by constructive compositional techniques. O9 (constraints) Constraints on histories specify interaction independently of state transitions. P7 ....

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Peter Wegner, Frameworks for Active Compound Documents, Brown TR-97-01, January 1997.

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