As Service Oriented Architectures (SOA) and Web services are becoming widely deployed, the problematic of security is far from being solved. In an attempt to address this issue, the industry proposed several extensions to the SOAP protocol that currently reached different levels of standardization. However, no architectural guidelines have yet been proposed. In this paper we first outline the s...

In service oriented systems, Quality of Service (QoS) is a service selection driver. Users evaluate QoS at run time to address their service invocation to the most suitable provider. Thus, QoS has a direct impact on providers' revenues. However, QoS requirements are difficult to satisfy because of the high variability of Internet workloads. Workload variability cannot be accommodated with tradi...

The maturity of IT processes, such as software development, can be and is often certified. Current trends in the IT industry suggest that software systems in the future will be very different from their counterparts today, with an increasing adoption of the Service-Oriented Architecture (SOA) design pattern and the deployment of Software-as-aService (SaaS) on Cloud infrastructures. In this talk...

Since the beginning of the nineties multi-agent systems have been seen as a promising new software paradigm that is capable to overcome conceptual weaknesses of mainstream object-oriented software solutions. Despite these theoretical advantages, in practice agent software is rarely used and as software paradigm has been widely superseded by the service-oriented architecture. One key reason for ...

During the last years, several approaches for the design of software services in service-oriented architectures (SOA) have been proposed. Often these approaches are too rough or too academic to provide guidance for real world SOA projects. Moreover, since the existing SOA design approaches are often not sufficiently validated, their successfulness in practice can be doubted. The research presen...

In the current economic context, enterprises are struggling to obtain competitive advantages on the market, by exploiting the opportunities offered by information technology. The research in this paper aims to encourage the use of modern approaches in order to increase enterprise agility, through the transition to Service-Oriented Enterprise (SOE). The proposed solution is based on reaching a s...

SOA has been adopted by enormous number of organizations world-wide. This study has investigated significant factors which affect SOA adoption in positive and negative manner. Unlike the previous similar studies, where they focused on qualitative analysis for SOA adoption, this study conducted a quantitative analysis to investigate the relationship between the adoption of SOA and the performanc...

This article presents some of the characteristics of future service-oriented systems. Also, it focuses on a set of architecture and design drivers for these future serviceoriented systems that can help meet new expectations without sacrificing the loosely coupled, stateless, standards-based characteristics that have driven SOA adoption in many contexts. The article concludes with thoughts on th...