J. Haake, C. M. Neuwirth, and N. A. Streitz, "Coexistence and Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems," Proc.  Home/Search   Document Details and Download   Summary   Related Articles   Check

....based on their contents. The user is offered a graphical means to express the queries. Our investigation focused on how to provide type emergent features that are easy to use and automate the process for repetitive data. But in contrast with previous work on this issue (Viki [10] 11] Dolphin[5], Cowfish [21] we do not settle for slotted frames of information. Instead, the user is encouraged to create object types in an intuitive way. We are especially concerned with enforcing strong typing to achieve as much as possible database integration of the emergent structures. This way, we ....

....one and set the basis for type metamorphosis. We also show that this optional strong typing brings useful full object query language functionality to the objects. At this point we would like to point out that different hypermedia applications have different specific requirements. Dolphin [5] is targeted at conducting group meetings and therefore emphasizes the free expression of ideas. Viki [10] supports information gathering and interpreting. It explores spatial structures and automatic structure finding algorithms to help the user organizing the materials. The applications ....

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J. Haake, C. Neuwirth, and N. Streitz. Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. In Proceedings ACM European Conference on Hypertext Technology, pages 1--12, Edinburgh, 1994.

....visual cues. Capture Lab [EK90] uses physical separation between private and shared spaces. Each user s workstation corresponds to a private workspace while a public computer, with a large wall mounted display, is the public workspace. Communication is done through a clipboard. DOLPHIN [Haake 94] interconnects public liveboards with personal workstations. The shared space can be visible at the liveboards and at the personal workstations. Objects can be placed on the shared space either by direct hand writing on the liveboard or by importing them from the personal workstations private ....

J. Haake, C. Neuwirth, and N. Streitz. Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. In ACM European Conference on Hypermedia Technology ECHT '94, Edinburg, Scotland, September 1994.

....information produced before the sessions is done by allowing the users to import text, images and prepared hypermedia information. Support to integrating information produced after the sessions is done by allowing the captured contents to be imported to a collaborative hypermedia system [17]. Although providing potential support for activities before, during and after the capture session, the authors do not report on its use. Chiu presents recent work on their system NoteLook, which allows a media enabled conference room to support capture, annotation, indexing of the resulting ....

Haake, J.M; Neuwirth, C. M.; Streitz, N.A . (1994) Coexistence and Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems. Proc. ECTH'94, pg 1-12.

....work are also discussed. KEYWORDS: Spatial hypertext, latent semantic indexing, virtual reality, digital libraries INTRODUCTION Generating flexible and extensible hypertext systems is a challenging task as one must capture and track implicit and emergent structures in an evolving environment [13, 22, 28]. There has been a rapidly growing interest in approaches such as open hypermedia systems (OHS) in which dynamic nodelink binding strategies are often used in order to achieve desired flexibility and maintainability (e.g. 14] The notion of spatial hypertext relies on implicit structures that ....

Haake, J. M., Neuwirth, C., and Streitz, N. A. Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. In Proceedings of ECHT'94, (Edinburgh, Scotland, September 1994), pp. 1-12.

....is also feasible in this type of applications. Summarizing this section, automatic link generation utilizes the semantic of node and link types, supporting the facility of creation. Various researchers have recognized the importance of typed nodes and links for communicating goals more effectively [Haake94]. Thus, application in which component types or classes are easily recognized (even semantic networks) can benefit remarkably from this approach. Furthermore, consistency and constraint checking can be addressed by just creating only the pre defined relations to be navigated, either if they relate ....

Jörg Haake, Cristine Neuwirth, Norbert Streitz. "Coexistence and Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems". Proceedings of ECHT'94: ACM European Conference on Hypermedia Technology, Edinburgh, Scotland, September 1994, pp. 1-12.

....different visual cues. Capture Lab [16] uses physical separation between private and shared spaces. Each user s workstation corresponds to a private workspace while a public computer, with a large wall mounted display, is the public workspace. Communication is done through a clipboard. DOLPHIN [24] interconnects public liveboards with personal workstations. The shared space can be visible at the liveboards and at the personal workstations. Objects can be placed on the shared space either by direct hand writing on the liveboard or by importing them from the personal workstations private ....

J. Haake, C. Neuwirth, and N. Streitz. Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. In ACM European Conference on Hypermedia Technology ECHT '94, Edinburg, Scotland, September 1994.

.... was used for the sole purpose of facilitating global navigation , a role from which it was soon emancipated, as the relevance of navigation and analysis of the index space was recognised [28, 45] However, later experiences such as the series of research projects leading from SEPIA to DOLPHIN [50, 51, 22, 31] or from Aquanet to HOS and VIKI (a paradigmatic example of spatial hypertext) 32, 33, 34, 47, 35] pointed out a number of serious difficulties related to the introduction of explicit representations of knowledge, the sum of which resulted in users rejecting the formalization of information. ....

Haake J.M., Neuwirth C.M., Streitz N.A.: Coexistenceand Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems, in: ECHT'94 Proceedings, ACM, New York, 1-- 12, 1994.

.... hypertext system is a hypertext system which supports the co existence and transformation of information structures in different degrees of formality, i.e. from very informal and unrestricted representations to very formal representations adhering to explicit rules prescribed by the system [7]. For hypertext systems, the degree of formality of information structures is often indicated by the degree of typing and constraints applied upon basic hypertext objects, e.g. from untyped, to typed with little constraints, to typed with strict constraints. The analysis of many tools that can ....

....by system developers. Aquanet [13] OVAL [11] and MacWeb [16] use certain formal representations to allow knowledge structures to be defined by schema designers. The approach presented in this paper allows ordinary users to define document types simply by creating sample documents. DOLPHIN [7] supports the co existence of and transformation among untyped informal and formal structures without constraints. This work extends it to support typed informal and formal structures with different degrees and combinations of constraints. HOS [22] uses textual analysis methods to support emergent ....

J. Haake, C. Neuwirth, and N. Streitz. Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. In Proceedings ACM European Conference on Hypertext Technology, pages 1--12, Edinburgh, 1994.

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. Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. Proceedings of ACM European Conference on Hypermedia Technology

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Haake, J., Neuwirth, C., and Streitz, N. Coexistence and transformation of informal and formal structures: Requirements for more #exible hypermedia systems. In Proceedings of ACM ECHT'94 #1994#, pp. 1#12.

....been developed for representing activity space semantics. A flexible hypermedia system is a hypermedia system which supports the co existence and transformation of information structures in different degrees of formality, i.e. from unstructured representations to well structured representations [1]. In COWFISH, the elements of the hypermedia model are nodes, links, node content pages, and other media objects such as text, drawing, graphics, image, etc. An activity space is represented as a nested node structure. Each node has a content page. The type of an activity space is determined by ....

J. M. Haake, C. Neuwirth, N. Streitz. (1994) "Coexistence and Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems", In Proc. ACM European Conference on Hypertext Technology, pp. 1-12.

....and decision making play a role. Graphic designers, for example, like to communicate their ideas via hand drawn sketches and annotations on whiteboards. Clients want to see previews, and propose and decide upon changes. Supporting these additional activities requires a wide range of structures [1] from very informal such as scribbles to more formal ones such as collections of typed nodes and typed links. Our DOLPHIN system [3] provides this for interactive electronic whiteboards, and for networked desktop and meeting room computers. It is possible to integrate and transform DOLPHIN ....

Haake, J., Neuwirth, C., Streitz, N. (1994). Coexistence and transformation of informal and formal structures: Requirements for more flexible hypermedia systems. European Conference on Hypermedia Technology'94 Proceedings (ECHT'94). Edinburgh, UK (Sept. 18--23, 1994), pp. 1--12. 2

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J. Haake, C. M. Neuwirth, and N. A. Streitz, "Coexistence and Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems," Proc.

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HAAKE, J. and STREITZ, N. Coexistence and Transformation of Informal and Formal Structures: Requirements for More Flexible Hypermedia Systems. In: Proceedings of the European Conference on Hypermedia Technology, ECHT'94 (Edinburgh, Scotland, September 18-23). New York: ACM Press, 1994, 1-12.

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