## 1 Introduction  
The business environment is characterized by high complexity and competitiveness. This is the reason why information--derived either from the internal or the external business environment--is considered to be the most valuable source the companies have available. Good information management can be proved to be crucial to their existence and prosperity as it helps the administration to adapt to strategies, avoid threats, utilize opportunities, change decisions, and effectively manage all the core and supportive company operations [1, 2, 3]. Globalization has increased the abundance of information being shared within the organizations along with the existing complexity and competitiveness rapidly. Thus, enterprises seek systems that would help them manage effectively the complexity of their operations along with the information they have available [1, 4]. This renders necessary and worthwhile the investigation of the implementation of an information system (IS) or technology (IT) as IT systems enable and facilitate a wide range of business activities (storage, processing, distribution, transmission, reproduction of information etc) [1, 5, 6, 7]. Several researchers have paid considerable attention to IT being used for supply chain management (SCM) as they noticed that it has become popular among companies. That is the reason why in the more developed economies the competition has shifted among different supply chains (chain-chain) compared to the enterprise-enterprise competition that seems to still exist in less developed economies [8, 9, 10, 11]. Generally, SCM can be considered as a way of approach that intends to put together under a single idea several parties such as manufacturers, suppliers, stores and warehouses. Companies have to be able to manufacture their products within the right time, distribute them in appropriate quantitiesto the right locations, so they can satisfy the service level requirements and at the same time to minimize the system wide costs. Adopting an IT seems necessary to be able to support their supply chains effectively and efficiently [3; 11]. IT can be considered a critical factor in supply chain (SC) as they contribute not only to the performance of an independent enterprise but also to the SC as a whole. One of the critical elements companies can develop through the effective use of IT in the SCM is competitive advantage [2; 11; 12; 13; 14]. There are several types of IS that can be used to support logistics management such as: enterprise resource planning--ERP, warehouse management systems--WMS, transportation management systems--TMS, and other related technologies (barcode, electronic data interchange, etc.) [7; 14]. Several literature reviews have noted the need for empirical research and in particular for survey-based studies that could provide answers regarding the use of IT in several aspects of industry. [PERSON] et al. [10] call for more research regarding the use of IS for logistics and SCM so as to increase the number of companies that participated in their survey, which was conducted in South East Europe--including Greece. Other studies call for further research regarding the enablers and inhibitors of advanced IT adoption or other perspectives that affect the rate of IT adoption in small-medium enterprises (SMEs) [11; 15]. Some researchers focus on a specific type of IS in an effort to discover its benefits. For example, [PERSON] and [PERSON] [5] call for more research in ERP empowering benefits on industrial firms so as to extend their research to more companies, which would also allow comparisons. Besides that, some researchers call for inter-country comparisons [10] or comparisons between different sectors for cross learning [15]. Of course, several other publications exist regarding Information and Communication Technologies (ICTs), ISs or specific systems such as ERP--and the relationship between ERP and SCM performance [16], WMS, etc.