As the importance of robot software has increased, much research about robot middleware has been performed extensively during the past several years. Most of these systems are based on client-server and service oriented-based system architecture. Robot middleware usually provides executable environments that robot software developers are easily able to develop flexible robot services through va...

In this chapter, we look at the general architecture of a peer-topeer system and contrast it with the traditional client-server architecture that is ubiquitous in current computing systems. We then compare the relative merits and demerits of each of these approaches toward building a distributed system. We begin the chapter with a discussion of the client-server and peer-to-peer computing archi...

We propose an infrastructure for collaborative content management and version control for structured mathematical knowledge. This will enable multiple users to work jointly on mathematical theories with minimal interference. We describe the API and the functionality needed to realize a cvs-like version control and distribution model. This architecture extends the cvs architecture in two ways, m...

A solution is proposed for the management of multi-resolution vector data in a mobile spatial information visualization system. The client–server architecture and the models of data and transfer of the system are presented first. The aim of this system is to reduce data exchanged between client and server by reusing data already present on the client side. Then, an extension of this system to m...

 In this paper the control and supervision through Internet of a process managed by PLCs (Programmable Logic Controller) is presented. The proposed software architecture allows remote users to know the sensors state and to send control signals to process actuators, by means of a graphical interface that is accessible via a web browser. Also the remote user can download control programs to PCL....

Online multiplayer first person shooter (FPS) games typically utilise a client-server architecture, and use a two-step process to find available game servers. Clients query a well-known master server for a list of registered game servers, then probe each listed game server in turn. This process emits thousands of probe packets over a short period of time. A client estimates the round trip time ...

Monitoring query processing has proven to be an eeective technique to detect bottlenecks in sequential query execution systems' components. Monitoring distributed execution in parallel systems, however , is a diicult task. The monitoring data of all nodes must be collected at the same time to value load-balancing and scheduling. Furthermore, we want to extract not only information about resourc...

This paper proposes a trusted decentralized access control (TDAC) framework for the client/server architecture. As the fundamental principle, TDAC enforces access control policies at the client side and protects sensitive objects at the server side by leveraging trusted computing technologies. Compared with the previous work of Sandhu and Zhang (2005), TDAC uses fewer requirements for trusted c...

Common web service architectures follow the classical client-server model with the client bound to the web service by a static physical connection. In this paper we show that this model is too restricted for some business scenarios and motivate the paradigm and the advantages of migratable web services. Migratable web services are instances of conventional web services that can change their exe...

The JPEG2000 image compression standard provides many features to support interactive access to large images. These include efficient lossless and lossy compression, resolution scalability, quality scalability, region of interest coding and spatial random access. The ISO/IEC JPEG committee is in the process of finalizing the JPEG2000 Internet Protocol (JPIP) standard for interacting with JPEG20...