Abstract—The focal aspire of e-Government (eGovt) is to offer citizen-centered service delivery. Accordingly, the citizenry consumes services from multiple government agencies through national portal. Thus, eGovt is an enterprise with the primary business motive of transparent, efficient and effective public services to its citizenry and its logical structure is the eGovernment Enterprise Architecture (eGEA). Since eGovt is IT oriented multifaceted service-centric system, EA doesn’t do much on an automated enterprise other than the business artifacts. Service-Oriented Architecture (SOA) manifestation led some governments to pertain this in their eGovts, but it limits the source of business artifacts. The concurrent use of EA and SOA in eGovt executes interoperability and integration and leads to Service-Oriented e-Government Enterprise (SOeGE). Consequently, agile eGovt system becomes a reality. As an IT perspective eGovt comprises of centralized public service artifacts with the existing application logics belong to various departments at central, state and local level. The eGovt is renovating to SOeGE by apply the Service-Orientation (SO) principles in the entire system. This paper explores IT perspective of SOeGE in India which encompasses the public service models and illustrated with a case study the Passport service of India. Keywords—Enterprise Architecture, Service-Oriented e- Government Enterprise, Service Interface Layer, Service Model. I. INTRODUCTION HE e-Government (eGovt) intends to offer transparent, efficient and effective public services to its citizenry [5]. Thus the citizenry act as service consumers and multiple government agencies are the service providers in the eGovt system. A national portal is acting as a platform for provision and accession of public services [21]. Thus government is a multifaceted enterprise with its business requirements as effective public service delivery [32], [19]. Enterprise Architecture (EA) and Service-Oriented Architecture (SOA) manifestations led enterprises to convalesce from the interoperability and integration issues of eGovt System (eGS) [11], [22]. IBM proposed concurrent use of EA and SOA is most beneficial [14]. While these are applying to the eGovt system leads to a Service-Oriented eGovt Enterprise (SOeGE) and an agile eGovt system becomes a reality [7]. The eGovt is an automated enterprise system. Thus, it has many confronts like any other automated enterprise, due to the duplication, heterogeneity, communication, adaptability, and granularity of application components [18]. The organizations Mrs. Anu Paul is doctoral student with the School of Computer Science, M G University, Kottyam, India (corresponding author; e-mail: anupaul71@gmail.com). Dr. Varghese Paul with the School of Information Technology, Cochin University, Kochi, India (e-mail: vp.itcusat@gmail.com). overcome these constraints by applying the Service- Orientation (SO) principles in the automation [15]. It is through the new manner in which they represent, view, model, and share the entire enterprise logic as services [27]. These results units of software partitioned into operational capabilities and each designed to solve an individual concern as services. It means that an organization or entity based on on-demand services. Subsequently the enterprise transformed into SOE [10]. IT perspective of automated enterprise logic consists of Business logic and Application logic [28]. Accordingly, eGovt has the centralized public services with the existing application logic belong to various departments at central, state and local level. The eGovt enterprise is renovating to SOeGE by the SO in the entire eGovt logic. Since SO is a design paradigm to build computer software in the form of services, it exists in a vacuous realm of abstraction. The services are establishes and realizes through the Service Interface Layer (SIL), which consists of service representations of entire enterprise logic [28]. This paper explores IT perspective of SOeGE in India which encompasses the public service models. ‘Passport Service’ is a citizen-friendly eGovt public service provided by GOI to its citizen. This paper presented the service model of Passport service of India. II. SERVICE-ORIENTED eGOVERNMENT ENTERPRISE (SOeGE) A. Enterprise Architecture (EA) EA supposed to manage the increasingly complex information system in a better, faster and cheaper way [23]. An Enterprise is a cross-organizational entity supports a defined business scope and mission. The interdependent entities like people, process, and technology are work together and share information for a common mission [6][30]. The motive of an enterprise is to give services to their consumers and its structural design is the Enterprise Architecture (EA). A logical structure for classifying and organizing complex information systems of an enterprise called its Enterprise Architecture Framework (EAF) [16], [9]. It is a means for structuring and classifying information of an enterprise in the form of architecture models and views [30]. The framework does not contain the EA itself, EA is distinct from EAF. Many organizations can use the same EAF, but each EA with its content is organization-specific. EA comprises the enterprise components or business components with its properties and relationship [17]. It mainly focuses on defining business components, addressing integration patterns, and deals with infrastructure including servers, databases etc., of an enterprise [17]. IT Perspective of Service-Oriented eGovernment Enterprise Anu Paul, Varghese Paul T World Academy of Science, Engineering and Technology International Journal of Humanities and Social Sciences Vol:9, No:1, 2015 153 International Scholarly and Scientific Research & Innovation 9(1) 2015 scholar.waset.org/1307-6892/10000240 International Science Index, Humanities and Social Sciences Vol:9, No:1, 2015 waset.org/Publication/10000240