| , Gordon Blair et al, "The Challenges of CSCW for Open Distributed Processing", 2nd International Conference on Open Distributed Processing (ICODP), Berlin 1993 |
....are merging to create a desire for collaborative interactive multimedia applications. These applications will provide virtual workspaces in which users can move around, converse and share ideas. A good overview of the technical challenges posed by CSCW to multimedia environments is given in [Blair93]. 2.2 Distributed Multimedia Environments This section describes how features of a multimedia environment are realised as system components and how such components are controlled. This highlights the responsibilities of an application which uses such an environment. Protocols Network Workstation ....
G. Blair and T. Rodden. The Challenges of CSCW for Open Distributed Processing. Technical Report MPG-93-24, Department of Computing, Lancaster University, 1993. (p 11)
.... model[3] and more recently, a semantic model for describing interactions in open distributed systems[10] The development of Finesse is being driven by requirements of CSCW systems, whose implementors are demanding users and frequent critics of existing distributed systems infrastructure[8, 4]. The key distinguishing features of Finesse are that: 1. Finesse abstracts over communication, allowing transformation of data and compiler or run time optimisation of message passing between components. 2. Finesse includes a representation of time, allowing the specification of quality of ....
G. Blair and T. Rodden. The challenges of CSCW for Open Distributed Processing. In Open Distributed Processing, II. IFIP, North Holland, 1993.
.... are low level and limited to message passing or remote procedure call (RPC) While this is sufficient for information processing applications with simple client server or three tier communication requirements, it falls short of supporting the flexibility and complexity required by CSCW systems[6, 22, 14]. There are a number of research oriented toolkits, for example GroupKit[23] and COAST[25] that support some of the required facilities for CSCW applications. These do not easily support extension or composition of facilities, however, because of their toolkit nature. In his recent PhD ....
G. Blair and T. Rodden. The challenges of CSCW for Open Distributed Processing. In Open Distributed Processing, II. IFIP, North Holland, 1993.
....specifications of what a stream binding object should be (for multimedia connection) However, their choice of TCP for data transportation can prevent any practical application due to the retransmission algorithm. The duplex nature of the streams is not necessary in most of the applications. 12 [4] presents a general taxonomy for the CSCW in open distributed systems but does not cover continuous media very deeply. 6. Conclusions and Further Work This paper has shown how an application for multimedia cooperative work can be easily constructed with the concept of distributed objects and ....
G. Blair and T. Rodden, "The Challenges of CSCW for Open Distributed Processing", International Conference on Open Distributed Processing 1993, pp. 99-112.
....at the level of basic computational object and engineering objects such as the binder and the stub were omitted. It was seen in DIMPLE how important their roles are. 7] also uses TCP for data transportation which can prevent any practical application due to the retransmission algorithm. [6] presents a general taxonomy for the CSCW in open distributed systems but does not cover continuous media very deeply. 9. Conclusions and Further Work This paper has shown how an application for multimedia cooperative work can be easily constructed with the concept of distributed objects and ....
G. Blair and T. Rodden, The Challenges of CSCW for Open Distributed Processing, International Conference on Open Distributed Processing 1993, pp. 99-112.
....The cooperative nature of group working means that there is a requirement to be aware of concurrent activity. Such a requirement appears to conflict with the ODP concept of transparency. Thus, ODP must evolve in order to effectively support group working. These issues are discussed further in [Blair,93] which considers the potential impact that CSCW will have on ODP. This study has highlighted the need for more cooperation aware policies for concurrency control, security and management. 59 5.4.3.3 Mobility Developments in portable computer technology and mobile communications have led to ....
Blair, G.S. and Rodden, T.: "The Challenges of CSCW for Open Distributed Processing", Presented at the International Conference on Open Distributed Processing, Berlin, Germany, September 1993.
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, Gordon Blair et al, "The Challenges of CSCW for Open Distributed Processing", 2nd International Conference on Open Distributed Processing (ICODP), Berlin 1993
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