C. Seeberg, A. Steinacker, K. Reichenberger, Stephan Fischer, R. Steinmetz
{"title":"Individual tables of contents in Web-based learning systems","authors":"C. Seeberg, A. Steinacker, K. Reichenberger, Stephan Fischer, R. Steinmetz","doi":"10.1145/294469.294513","DOIUrl":"https://doi.org/10.1145/294469.294513","url":null,"abstract":"The iTeach project of the Darmstadt University of Technology builds a webbased adaptive hypermedia teaching and learning environment for multimedia and communication technology. Hereby, the demands of diverse user groups, user levels and especially of diverse learning strategies are taken into account. Besides information gained from the interaction with the user, the system uses standardized content relations and meta-information to adaptively compile a selection from the set of available information units (media bricks). A subset of the metainformation represents the compiled lesson on a high level and is presented to the learner as a dynamically generated table of contents. Subjects which are topics in one scenario can be subtopic in the next or not occur at all. Our approach can help closing the gap between free navigation and static guidance in an adaptive hypermedia system.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115613395","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Abstract tasks: a tool for the inspection of Web sites and off-line hypermedia","authors":"F. Garzotto, M. Matera, P. Paolini","doi":"10.1145/294469.294510","DOIUrl":"https://doi.org/10.1145/294469.294510","url":null,"abstract":"Tasks: a Tool for the Inspection of Web Sites and Off-line Hypermedia F. Garzotto, M. Matera, P. Paolini HOC Hypermedia Open Center Dipartimento di Elettronica, Politecnico di Milan0 P. zza Leonardo da Vinci 32,20133 Milan, Italy E-mail: [garzotto, matera, paolini] @elet.polimi.it ABSTRACT This paper discusses a systematic method for inspecting the usability of on-line and off-line hypermedia. The core idea of our approach is the use of an organized list of Abstract Tasks to guide the inspector’s activity. An Abstract Task specifies a pattern of inspection operations that the evaluator is required to perform on some specific features of a hypermedia. Abstract Tasks capture our expertise in usability inspection, and express it in a precise and understandable form, so that it can be easily “reproduced”, communicated, and exploited. They help transferring usability expertise from experienced to inexperienced inspectors, and sharing know-how among different evaluators. Thus, different inspectors who systematically apply the same set of Abstract Tasks are more likely to come up with consistent results, and the overall quality of their inspection (in terms of completeness and accurateness of the findings) is greatly improved. The paper briefly introduces the background of our approach and explains the rationale of Abstract Tasks. It also provides some examples of Abstract Tasks (out of the 43 currently defined) and of inspection results achieved by applying them to inspect WWW sites and commercial CD-ROMs.This paper discusses a systematic method for inspecting the usability of on-line and off-line hypermedia. The core idea of our approach is the use of an organized list of Abstract Tasks to guide the inspector’s activity. An Abstract Task specifies a pattern of inspection operations that the evaluator is required to perform on some specific features of a hypermedia. Abstract Tasks capture our expertise in usability inspection, and express it in a precise and understandable form, so that it can be easily “reproduced”, communicated, and exploited. They help transferring usability expertise from experienced to inexperienced inspectors, and sharing know-how among different evaluators. Thus, different inspectors who systematically apply the same set of Abstract Tasks are more likely to come up with consistent results, and the overall quality of their inspection (in terms of completeness and accurateness of the findings) is greatly improved. The paper briefly introduces the background of our approach and explains the rationale of Abstract Tasks. It also provides some examples of Abstract Tasks (out of the 43 currently defined) and of inspection results achieved by applying them to inspect WWW sites and commercial CD-ROMs.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"67 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"124832628","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Olav Reinert, Dirk Bucka-Lassen, Claus Aagaard Pedersen, Peter J. Nürnberg
{"title":"CAOS: a collaborative and open spatial structure service component with incremental spatial parsing","authors":"Olav Reinert, Dirk Bucka-Lassen, Claus Aagaard Pedersen, Peter J. Nürnberg","doi":"10.1145/294469.294484","DOIUrl":"https://doi.org/10.1145/294469.294484","url":null,"abstract":"This paper introduces a project that provides spatial hypermedia services as part of a component-based open hypermedia system (CB-OHS). We focus on the issues of storing both the information space and the parsed spatial structure (for structure sharing purposes) and collaboration support. Continuous re-parsing of spatial structure guarantees consistency between spatial and parsed structure. This promotes parsed structure to first-class status, making persistent storage of it attractive; and, it ensures a consistent view of the parsed structure between collaborative users. For efficiency reasons, the spatial parser is incremental. An accompanying spatial editor shows the validity and utility of the approach.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"80 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123210110","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
M. Tzagarakis, Michalis Vaitis, A. Papadopoulos, D. Christodoulakis
{"title":"The Callimachus approach to distributed hypermedia","authors":"M. Tzagarakis, Michalis Vaitis, A. Papadopoulos, D. Christodoulakis","doi":"10.1145/294469.294482","DOIUrl":"https://doi.org/10.1145/294469.294482","url":null,"abstract":"We present the issues and design of the naming architecture of Callitnachus an open distributed hypermedia system.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"103 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"116563546","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Team-and-role-based organizational context and access control for cooperative hypermedia environments","authors":"Weigang Wang","doi":"10.1145/294469.294480","DOIUrl":"https://doi.org/10.1145/294469.294480","url":null,"abstract":"Access control needs to be more flexible and fine-grained to support cooperative tasks and processes performed by dynamic teams. This can be done by applying state-of-theart role-based access control (RBAC) technology. This paper examines how to integrate RBAC in a team-based organization context and how to apply such access control to hypermedia structures. Based on the analysis of these issues, a team-and-role-based access control model is proposed, which describes various aspects of role-based access control in cooperative hypermedia environments. The model has been implemented in CHIPS, a cooperative hypermedia-based process support system. Application examples demonstrate that its organizational context management and access permission authorization retain the simplicity of RBAC. Our extensions provide effective and flexible access control for managing various kinds of shared workspaces, especially shared process spaces, where access control is not only used for managing security, but also for supporting coordination.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"12 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121414998","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"The application of a hypermedia research system in industry","authors":"Ian Heath, W. Hall, R. Crowder, G. Wills","doi":"10.1145/294469.294907","DOIUrl":"https://doi.org/10.1145/294469.294907","url":null,"abstract":"The requirement for industrial strength hypermedia is well known [5]. If hypermedia is to be used in such an environment, then a great deal of work is required in integrating with the factory practices. This means any proposed model must be simple to maintain and implement whilst providing a real benefit for the organization as a whole. This technical briefing presents a new model for developing large scale, industrial hypermedia applications.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"28 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"114881614","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Structure analysis for hypertext with conditional linkage","authors":"Jean-Hugues Réty","doi":"10.1145/294469.294503","DOIUrl":"https://doi.org/10.1145/294469.294503","url":null,"abstract":"We propose a structure analysis and proof framework for hypertext with conditional linkage. This framework can provide hypertext systems with a powerful and simple tool to help the writer to maintain control over the browsing semantics of her hypertext. We briefly present the outline of a possible implementation in PROLOG.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"76 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"115672823","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Hypermedia potentials for analysis support tools","authors":"D. Lange","doi":"10.1145/294469.294512","DOIUrl":"https://doi.org/10.1145/294469.294512","url":null,"abstract":"Abstract : The analytical process in many domains is one of associating pieces of preexisting data to form new information. Where the individual data elements are multimedia files, database entries, and computer based models, hypermedia architectures provide natural support for such a process. This paper describes aspects of analysis support that dictate particular requirements in a hypermedia based system. Adaptations of techniques from published hypermedia research were indicated by these requirements. Key among these techniques were anchoring as presented in the Dexter model, perspective filtering and navigation from graph based hypermedia, link typing from rich hypermedia, and the system structure of open hypermedia systems.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"24 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125697449","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Navigation scheme for interactive movies with linear narrative","authors":"Guy Vardi","doi":"10.1145/294469.294500","DOIUrl":"https://doi.org/10.1145/294469.294500","url":null,"abstract":"The article introduces an interactive movie navigation model. focused on some cinematic aspects of the movie, such as camera position, movement, and angle. The model preserves the linear structure of the narrative and creates a context-based navigation scheme. The interactive dimension of the project enables the viewer to explore the story through the characteristics of several points of view. The user‘s interaction is used to affect some cinematic conventions, while it does not interfere with the development of the plot.","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"170 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125664680","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Control choices and network effects in hypertext systems","authors":"E. J. Whitehead","doi":"10.1145/294469.294491","DOIUrl":"https://doi.org/10.1145/294469.294491","url":null,"abstract":"When the utility of a hypertext system depends on the number of users and amount of data in the system, the system exhibits network effects. This paper examines how the core differences in control assumptions between monolithic hypertext systems, open hypermedia systems, and the Web, lead to different incentive structures for readers and content providers and hence varying levels of","PeriodicalId":418007,"journal":{"name":"Proceedings of the tenth ACM Conference on Hypertext and hypermedia : returning to our diverse roots: returning to our diverse roots","volume":"151 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"1999-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131931417","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}