  As educational institutions and their departments rapidly increase, a
communication between their end-users becomes more and more difficult in
traditional online management systems (OMS). However, the end-users, i.e.,
employees, teaching staff, and students are associated to different sub-domains
and using different subsystems that are executed on different platforms
following different administrative policies. Because of their
intercommunication is not automated integrated, consequently, the overall
efficiency of the system is degraded and the communication time is increased.
Therefore, a technique for better interoperability and automated integration of
departments is an urgent needed. Many of existing systems does not have a set
of connections yet, such as the system of the University of Sindh (UoS). In
this paper, we propose a system for the UoS, named integration of
inter-connectivity of information system (i3) based on service oriented
architecture (SOA) with web services. The system i3 monitors and exchanges the
students information in support of verification along heterogeneous and
decentralized nature. Moreover, the proposed system provides capability of
interoperability between their subsystems that are deployed in different
departments of UoS and using different programming languages and database
management systems (DBMS)
