10317156
A research on Collaboration Net
We present research on computer-supported cooperative work by introducing an approach to the multimedia based net-centric conference environment-Collaboration Net. Some basic definitions of the distributed Web-based meeting are provided, and the properties of this kind of collaboration are given. We explain problems associated with the well-known yet old-fashioned parliamentary procedure, Robert's Rules of Order, which must be formally modeled and adapted to the modern net-centric virtual conference where time synchronism is hard to enforce. A prototype of our Web-browser based approach to developing the Collaboration Net is also briefly presented. Finally, research challenges in this area are highlighted.
10778870
An empirical performance study for validating a performance analysis approach: PSIM
Performance analysis gains more attention in recent years by researchers who focus their study on the early software development stages to mitigate the risk of redesign as problems emerge later. Previously we proposed PSIM (a performance simulation and modeling tool) that integrated performance properties into software architecture specifications expressed in several major UML diagrams. PSIM models can be transformed into colored GSPN and the colored GSPN models can then be simulated to perform model-based performance evaluation. In this paper we briefly review the PSIM approach and apply it to model a Web-based conferencing system, called M-Net, to derive performance metrics. We then conduct runtime performance testing to the implementation of M-Net and compare the simulation data to runtime testing data. The comparison results show the effectiveness of the PSIM method in predicting system performance and identifying system performance bottlenecks.
36323277
Event-Based Traceability for Managing Evolutionary Change
Although the benefits of requirements traceability are widely recognized, the actual practice of maintaining a traceability scheme is not always entirely successful. The traceability infrastructure underlying a software system tends to erode over its lifetime, as time-pressured practitioners fail to consistently maintain links and update impacted artifacts each time a change occurs, even with the support of automated systems. This paper proposes a new method of traceability based upon event-notification and is applicable even in a heterogeneous and globally distributed development environment. Traceable artifacts are no longer tightly coupled but are linked through an event service, which creates an environment in which change is handled more efficiently, and artifacts and their related links are maintained in a restorable state. The method also supports enhanced project management for the process of updating and maintaining the system artifacts.
9167410
Computing curricula 2001 how will it work for you?
In the fall of 1998, the ACM Education Board and the Educational Activities Board of the IEEE Computer Society appointed representatives to a joint task force to prepare Computing Curricula 2001 (CC2001), the next installment in a series of reports on the undergraduate computer science curriculum that began in 1968 and was then updated in 1978 and 1991. Interim reports on the initial planning of the curriculum were presented at the SIGCSE symposium and the IEEE Frontiers in Education Conference in both 1999 and 2000. The CC2001 Task Force released its first draft report at the 2000 SIGCSE conference and plans to release its penultimate draft at SIGCSE 2001. The purpose of this session is to describe how we expect the recommendations of the report to apply in practice. The panelists represent a range of institutions and can therefore speak to the questions that audience members from similar institutions might have.
553852
Creating a distributed environment using object oriented technology
The paper gives a detailed description of the development of a distributed environment. A brief description of an object oriented technology used in the development of the environment is also presented. The environment described is suitable for rapid prototyping of distributed applications and complete development of distributed software systems. This environment was used in the development of client/server applications and the simulation of a cellular system. The cellular system featured Call-Handoff Cell-spitting and the dynamic allocation of cellular phones in the system.
18290622
Transport measurements on MOVPE-grown InN films
We have performed electrical transport measurements on InN films. Our results show that the electron transport in our InN films is metallic-like, that is, within the experimental error the carrier density is temperature-independent over a wide temperature range (4 K≤T≤290 K). At low temperatures, the resistivities of our InN devices appear to saturate and show gradual increase with increasing temperatures. We suggest that residue impurity scattering limits the electron mobility in InN films. We compare our results with existing theoretical models.
7769541
A Net Practice for Software Project Management
Technical and managerial complexity increasingly overwhelm project managers. To rein in that complexity, the authors propose PM-Net, a model that captures the concurrent, iterative, and evolutionary nature of software development. It adopts the basic concepts of Petri nets, graphical models of information flow, with extensions to represent both decisions and artifacts.
14948724
Joint software research between industry and academia
A model for industry-sponsored academic software research tha helps the sponsor gain tangible results quickly but respects the university's research mission is presented. Central to the model is joint effort to achieve a win-win situation for all participants. The key is the relationship between the university's principal investigator and the company's visiting scholar. The principal investigator initiates research contracts and is responsible for research results but, because he or she is an academic, may not have an industrial perspective. The company dispatches a technical representative, called the visiting scholar, to participate directly in the daily research. A research structure, relations with the sponsoring company, issues regarding environmental compatibility and funding amount and duration, and a reporting structure are all spelled out in the model. Legal recommendations are made with respect to confidentiality, copyrights and patents, export controls, and other issues. Other considerations that arise when writing a research contract are discussed.<<ETX>>