Single Window Systems
In the OIC Member States
89
4.3.4 Information Technology and Architecture
The PortNet IT architecture is based on a distributed architectural pattern, meaning that
agencies that participate in the Single Window operate independent IT Systems that are
interconnected and interoperable with PortNet; i.e. BARD operated by Customs. In this set up,
PortNet is an exchange layer of data and information in an organized manner – a hub for data
exchange.
The PortNet IT Architecture was designed as single layer architecture with open
communication channels with other users. Through interconnectivity services it is providing a
structured but not centralized management of data. The data after validation is shared across
users.
The PortNet IT architecture is distributing the data by submission to the end-users. Data entry
and integration is processed by the Single Window component application layer (validation
rules) and routed for submission to the end-users for further processing. After processing of
data, and decision by the agency, the agency’s IT system are submitting the data and
information back to the PortNet to the end-users (traders, customs, port authorities, logistic /
transportation etc.) Since the PortNet system is using web technology and web services for
exchange of information, there is a no geographical limits for using the SW services.
A business continuity and disaster recovery plan is finalized and a backup site will be set up
with the implementation of the second generation of the PortNet.
IT Infrastructure
The PortNet IT architecture consists of infrastructure components of a particular type that are
defined by the functional components of the SW. The implemented infrastructural model are
divided into three layers according to the service and application burdens performed by the
functional component. The components of the SW IT Infrastructure are production, disaster
recovery, development, test and training.
The IT infrastructure consists of a web-based portal for submission of data from external users
and service bus that is disseminating the data to users. The IT infrastructure is dedicated to the
Single Window and the PortNet SW system is not hosting or supports the end-to-end systems
of the agencies. The PortNet Single Window is a single point of data entry. After the data is
submitted, the exchange layer is distributing data to end-users according to taxonomy rules
and engine integrated in an enterprise service bus.
Electronic Signature
The authentication services are based on user credentials (user name and password). An
additional layer of security is provided with usage of digital signature.