Proceedings of the 35th Annual Hawaii International Conference on System Sciences最新文献

{"title":"Enterprise architecture, implementation, and infrastructure management","authors":"H. M. Chung, Graham Mcleod","doi":"10.1109/HICSS.2002.993988","DOIUrl":"https://doi.org/10.1109/HICSS.2002.993988","url":null,"abstract":"Enterprise Architecture (EA) is a comprehensive model of an enterprise: a master plan, which acts as a planning, structuring, and integrating guideline and force for an organization. EA covers business structure and context, information technology dimension and organizational structure, and workflow dimension in achieving the organization's goals and strategies. It seeks to promote synergy between the various dimensions, aligned with achieving overall business purposes. While the concept of centralized business systems planning has become less popular, rapidly changing e-business environments, along with the more decentralized nature of the organizational resources, demand not only more flexible and adaptable but also cohesive and value creating role of information systems infrastructure and its management. In particular, synchronizing business goals and strategies; governance principles; organizational structures, processes and data; business applications, their systems and databases; and network infrastructure (internal and external to the enterprise) become more critical. However, planning, designing, operating, and controlling such a distributed system to ensure achieving the intended goals of an organization is often challenged and defeated by the immediacy of day-to-day problem solving caused by the factors often outside the control of management. Decentralization of network services, diverse architectural arrangement, and internal application demand make coherent and coordinated infrastructure management more difficult. Multi vendor environments as well as rapidly advancing technologies further complicate the problem.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"126 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121735400","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":"Using weather derivatives to improve the efficiency of forward markets for electricity","authors":"T. Mount","doi":"10.1109/HICSS.2002.993961","DOIUrl":"https://doi.org/10.1109/HICSS.2002.993961","url":null,"abstract":"The analysis in this paper demonstrates that a combination of 1) a forward contact, with fixed price for both base land and peaking power, and 2) a collar option for the number of hot days in a summer is an effective way to reduce the risk of purchasing electricity in a spot market. The main advantages are 1) the effectiveness of price signals is strengthened by making peaking power expensive, and 2) the correlation between payouts from the weather option and high prices is increased.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"41 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"133085071","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":"Asynchronous team support: Perceptions of the group problem solving process when using a CyberCollaboratory","authors":"D. Dufner, Ojoung Kwon, Yong-Tae Park, Qing Peng","doi":"10.1109/HICSS.2002.993851","DOIUrl":"https://doi.org/10.1109/HICSS.2002.993851","url":null,"abstract":"The research presented studied thirty-three groups of student volunteers over a period of three weeks while the groups performed a series of teamwork tasks. To investigate the viability of Web-based group support tools for asynchronous learning networks, student volunteers from four widely distributed universities were assigned to one of four experimental conditions. The conditions are; 2 modes of communication (asynchronous vs. synchronous)/spl times/2 support conditions (with CyberCollaboratory support or without). The groups assigned to the different conditions reported significant differences in perceptions of the group problem solving process. The face-to-face groups felt the process was more efficient, coordinated, fair, and satisfying. Those with CyberCollaboratory support thought the process was more confusing and less satisfying. Comments from the students suggest the reason for these results may be a combination of insufficient training time (one week) and a short period (two weeks) for using the tools to accomplish a fairly simple group task. Interaction effects showed that both the asynchronous groups with CyberCollaboratory support and the baseline (face-to face) groups found the problem solving process to be more efficient, coordinated, and fair than did either the asynchronous groups without CyberCollaboratory support or the face-to face groups with CyberCollaboratory support.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"130543082","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":"Optimal electric power capacity expansion in the presence of options","authors":"D. Wu, P. Kleindorfer, Yanjun Sun LeBow","doi":"10.1109/HICSS.2002.993960","DOIUrl":"https://doi.org/10.1109/HICSS.2002.993960","url":null,"abstract":"This paper studies optimal long-term electric power capacity strategies with capacity options. Gencos can sign contracts with Discos, where such contracts take the form of capacity options that may or may not be executed by Discos at some pre-specified maturation date. Capacity not offered in the options market, or for which options by Discos are not executed, can then be offered in the spot market. The purpose of this paper is to derive the optimal capacities for Gencos in the long run, given full knowledge of the short-term equilibria in previous literature. We determine the best response strategies for each Gencos in the game derived from the short-term outcome resulting from capacity decisions. We then characterize the long-run equilibrium and derive an efficient algorithm to compute it, when it exists. This allows us also important insights into the nature of technologies that can survive in the long run.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"45 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123416851","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":"Building plug and play power applications using abstract object modeling","authors":"M. Robinson, R. Podmore, Chris Mosier, Fabiola de la Peña","doi":"10.1109/HICSS.2002.993966","DOIUrl":"https://doi.org/10.1109/HICSS.2002.993966","url":null,"abstract":"This paper addresses the computer industry's general inability to develop complex software applications in a manner that promotes easy integration, reusability and low maintenance. Most complex applications are built for a very specific environment and include far too many dependencies, making them difficult to maintain and expensive to integrate. A development methodology known as Abstract Object Modeling is discussed that overcomes this limitation and a simple power application known as a linear powerflow is used as an example. The powerflow is first discussed in terms of a traditional approach, then in terms of the abstract object modeling.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"127 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123032633","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":"Information management and visualization in electric power systems","authors":"T. Overbye, M. Robinson","doi":"10.1109/HICSS.2002.993963","DOIUrl":"https://doi.org/10.1109/HICSS.2002.993963","url":null,"abstract":"As the electricity industry becomes increasingly competitive, knowledge concerning the capacity, constraints and reliability of the electric system will become a commodity of great value. Electricity markets can be fast changing; understanding the implications of these changes before others can give an important competitive advantage. Power systems, however, are characterized by extremely large sets of data that cover spatial, temporal and contingent dimensions. Therefore the focus of this mini-track is on the management and visualization of the information associated with power markets and power systems. This year there were four accepted papers. The first paper, “Visualization and Animation of Inverter-Driven Induction Motor Operations” addresses power system visualization at the component level. Power systems are characterized by devices with many different characteristics and widely varying time frames of response. In some situations, understanding the response of the entire system requires having a detailed knowledge of the individual components. The first paper presents an overview of a component-based virtual power system simulation and visualization environment. The paper then demonstrates these concepts with the example of an inverter-driven induction motor. The second paper, “Real-time Data Retrieval and New Visualization Techniques for the Energy Industry”, moves from a micro to a macro view of the power system. Rather than providing detailed visualizations of the individual components, the second paper presents some innovative methods for providing a visualization of the high level operation of the power grid. The paper makes a very useful contribution in providing some case study results","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"9 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127604146","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":"Measuring Web portal utilization","authors":"M. Christ, R. Krishnan, D. Nagin, O. Gunther","doi":"10.1109/HICSS.2002.994220","DOIUrl":"https://doi.org/10.1109/HICSS.2002.994220","url":null,"abstract":"Content-aggregating Web portals such as yahoo.com are becoming increasingly popular. Until recently, many of these Web sites positioned themselves as 'search engines' or 'navigational directories'. However, over time, these sites made the transition to Web portals by incorporating additional features such as news, maps, driving directions, chat rooms, email services, and many others. By doing so, Web portals try to address a variety of needs of Web users. Specifically, portals attract users who prefer to satisfy a variety of individual needs on one site instead of having a variety of Web sites for specific needs. At the individual level, little is known about the degree of portal usage and the characteristics of users that determine portal utilization. We measured Web portal utilization of individuals in the HomeNet project over a period of 18 months and developed demographic profiles of groups with different portal utilization levels. We find that the majority of Web users do not use the additional features Web portals offer. Heavy portal users show specific demographic characteristics. The results have important implications for Internet marketing.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"72 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127362010","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":"Web portal functionality and state government e-service","authors":"Jon P. Gant, D. Gant","doi":"10.1109/HICSS.2002.994073","DOIUrl":"https://doi.org/10.1109/HICSS.2002.994073","url":null,"abstract":"This paper reports the results of a study investigating the role of Web portals in state government electronic service delivery. We describe the functionality of the fifty US state Web portals and examine several factors which explain why some states are have higher functioning web portals than others. We find that the nearly every state Web portal is in the early stages of development. Most state Web portals provide information and access to limited set of government services. However; the level of integration necessary to provide advanced transaction capabilities is not present in most portals. We further find that the strategic IT approach employed by the state and the extent to which the state has adopted e-government friendly laws are key factors in the development of high-functioning state Web portal.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117001850","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 interaction between organizational subcultures and user-centered design-a case study of an implementation effort","authors":"N. Iivari, P. Abrahamsson","doi":"10.1109/HICSS.2002.994362","DOIUrl":"https://doi.org/10.1109/HICSS.2002.994362","url":null,"abstract":"Usability is a quality characteristic of a software product or system. User-centered design (UCD) is an approach focusing on making systems usable. However, improving the position of UCD is widely recognized as a challenge. This paper reports results from a case study, in which a small software development company was introduced to UCD principles and activities, and thus expected to change their current practice. The paper takes a culture-oriented approach to the analysis. The focus is on the interaction between organizational culture and UCD, organizational culture being conceived as a set of subcultures. The results indicate that there exist differences: 1) in the views of the nature of UCD; 2) in the motives for implementing it; and 3) in the experiences gained and interpretations made of the use of it in relation to each subculture. The implications for the prospective research and practice are discussed.","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"61 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"117247655","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":"Mintrack introduction: mobile applications","authors":"J. Hagstrom, R. Alena","doi":"10.1109/HICSS.2002.994512","DOIUrl":"https://doi.org/10.1109/HICSS.2002.994512","url":null,"abstract":"In the explosion of research on mobile computing, the area that has received the least attention has been software and applications. As Milojicic, Douglis and Wheeler noted in 1999, \"The lack of applications is the biggest challenge for deploying any form of mobility.\" This statement is still true today. While great advances have been made in wireless networking infrastructures, the services and software to deliver value to users has not been as widely developed. As yet, mobile services pale in comparison with the services available on one's desktop. One of the most important types of problems in the deployment of mobile services revolves around issues of dynamically distributed architecture. All of the papers in this Minitrack are concerned with this 'software infrastructure' that will make it possible for particular applications to run more effectively. Each paper begins with the question, \"What are distributed architectural requirements of mobile applications that are fundamentally different from conventional applications?\" Then each in turn identifies a different, partial set of requirements, shedding light on a key aspect of mobile computing. The first paper points out that mobile applications are required to cope with the physical movement of the user's device. That is to say, location is dynamic. In \"An Architecture for Location Aware Applications\", James Nord, Kare Synnes, and Peter Parnes show that there is a need for a single, integrated platform for receiving and comparing location information. They propose a generic positioning protocol that provides a single context to make location information available to applications and facilitates providing more accurate location information. The second paper is concerned with the resource shortages that are intrinsic to computing with small, mobile devices, and focuses in particular on the fact that battery power is precious. Thomas Kunz and Salim Omar argue in \"An Adaptive MP3 Player: Reducing Power Consumption and Increasing Application Performance\" that the trade-off between power use and application performance can be balanced by","PeriodicalId":366006,"journal":{"name":"Proceedings of the 35th Annual Hawaii International Conference on System Sciences","volume":"71 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2002-08-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"127386678","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}