In recent years, numerous new approaches that rely on data-intensive methods have been developed for maritime assistance systems, leading to a compelling need more elaborate verification and validation procedures. Modern testbeds can meet these demands are often separately from the system itself provided as generically usable services. However, joint usage of such by multiple stakeholders resea...

A voice over IP quality monitoring architecture based on the development of the VQuality library is described. VQuality implements the E-model and its extensions for objective voice quality measurement. The library also supports generation of a customized voice quality CDR with extensions that permit transfer of call quality parameters measured over different instants of time, besides interacti...

Service granularity generally refers to the size of a service. The fact that services should be large-sized or coarse-grained is often postulated as a fundamental design principle of service oriented architecture (SOA). However, multiple meanings are put on the term granularity and the impact of granularity on architectural qualities is not always clear. In order to structure the discussion, we...

AMnet provides a framework for flexible and rapid service creation. Its primary goal is to provide customized multicast services on demand, thus providing a framework for a flexible open communication platform. AMnet is based on active and programmable networking technologies and uses active nodes (AMnodes) within the network. These AMnodes are executing on-demand loadable service modules to en...

We present the application of real options analysis (ROA) to a managerial decision-making problem. A case study was developed to illustrate the mathematical steps required to apply ROA. The results of this model show that a net present value analysis, which is most often used in practice, would have led to a sub-optimal decision, as it does not take into account the value of future options and ...