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FO R 7 r ES e pt SE UR T I ha N PR CT ME T ook C ER ITE RN EN B T H N C VE PM E R O LO A -G E E EV D H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 1 oq ro a if sh B /ka S T M PI /in LU m om S o c m M fr in. U ro L f q ed m a is o o in k o r l w fr Fa w. A il f w i a d sh ://w am ma a K ttp Sh m M h y ha a u af M Sh a n i M RS O TH AU H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 2 ABSTRACT Two common Strategies for e-Government Development • Demand based • Architecture based A National Enterprise Architectural (NEA) approach provides guidelines form project planning to technical development and operations. It aligns all the e-government projects with some standard principles. In this Chapter following architectures and frameworks have discussed Zachman Framework RM-ODP (Reference Model- Open Distributed Processing) ARCON (A Reference Model for Collaboration Network) TOGAF (The Open Group Architectural Framework) FEAF (Federal Enterprise Architecture Framework ) H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 3 Similarity Between Town Planning & Enterprise Architecture Long-term plans such as roads, transportation and communication networks, provision of utilities, health and housing facilities, etc Long-term plans such as integrated databases, enterprise applications, e-services at mass level, legal frameworks etc H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 4 EAI O N N N A A L E N T E R P R IS E A R C H IT E C T U R E provides guidelines at • the strategic level to design & implement ICT infrastructure T • starting from the top-level applications to lowest level of physical IT facilities • while keeping manpower, security and governance in view. Similar to a town planner H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 5 L A UR CT TE I H H RC AC A O AN PPR A • Institutionalization • Standardized Development • Sustainability • Cost Reduction Through Shared Resources • Return On Investment (ROI) H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 6 ED IT Nr U n te S TE TAence S eri p Ex l na o ti na I Pioneer in EA development & implementation Government Open Systems Interconnection Profile (GOSIP) in 1980 The law on public IT acquisitions supported the EA Federal Chief Information Officer Council (CIOC) published the "Federal Enterprise Architecture Framework (FEAF) in 1999 Based on Zachman & TOGAF H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 7 N xp A lE M ona ERnati r G n te I e nc ie er Standards and Architectures for e-Government Applications (SAGA) initiated by Federal Administration (KBSt) as a NEA It is based on Reference Model-Open Distributed Processing (RM-ODP) It evolved and extended to e-Government 2.0 & H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E Deutschland-Online programs - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 8 e-Government Interoperability Framework (e-GIF) in 2001 SH TI I Rr B te In e xp E al n io t na e nc e ri e-GIF is a popular framework and has been adopted by some Commonwealth countries Scotland is using the Open Scotland Information Age Framework (OSIAF)which is extension of e-GIF New Zealand also owns e-GIF UK Government has introduced a new cross-Government Enterprise Architecture (xGEA). It supports the better inter-working between agencies through the agreement of shared standards The Reference Model of xGEA is xGEARM having repository of Architectures for administrative branches Tand W W. I G I -agencies M / C H A P T E R / E N Tdepartmental their G L O B A L . C O to develop E R P R I S E HT P://W - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 EAs 9 1 eGovCH was initiated in 2006 as NEA based on The Open Group E Architectural Framework C N (TOGAF) also aims to promote IE R open source, vendor-neutral E P and freely available tools X D AN L E ER N A L TZA T I O I N SWT E R N I The Swiss IT Council Approved the Open Source Software (OSS) and Open Standard Strategy In 2004 eGovCH is Service-oriented Paradigm. It also takes care of Political and Legal Constraints H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 10 R IE An EA tool kit “ B u s i n e s s Tr a n s f o r m a t i o n Enablement Program (BTEP) E C was introduced for N E 1. T h e s t r a t e g i c r e f e r e n c e m o d e l s X of Canadian government: E L it suggests a common modeling A N language for federal, provincial O I and municipal to map their processes T P A AD N NA CAT E R N I 2. T r a n s f o r m a t i o n m e t h o d o l o g y : i t involves step-by-step processes and implementation plans I n 2 0 0 4 , C h i e f I n f o r m a t i o n O ffi c e r b r a n c h of the treasury board of Canada secretariat developed Governments of H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E C a n a d -a R C HtTrEa T Ue E Si- G O V E eNfM E N T - D Ec E L O M oN T /e 7 0 9 G S11M ) e r e n V e PME d 7 l ( R A S I C t Rg c R R 1 under the shadow of BTEP DR I E N NPE AEX L I C E RN A L E Netherlands or Dutch Government IO T Reference Architecture (NORA) A N is not a mandatory model for adoption R E T across the government agencies. TH E NN S Organizations work with NORA on a voluntary basis. NORA enables better cohesion and collaboration among government bodies H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 12 Click icon to add picture Ne IA ienc L er A R l Exp T na S U rnatio A te Australian In Government initiated Government Architecture Reference Models (AGA-RM) which is based the FEAF H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 13 E R ience O er P A al Exp Click icon to add picture Government started EA program in 2002 In 2007, a set of reference models were introduced Singapore Government Enterprise Architecture (SGEA) including • Business Reference Model (SG-BRM); • Data Reference Model (SG-DRM); • Application Reference Model (SG-ARM); • Technology Reference Model (SG-TRM) G ion IN rnat S te In A methodology was developed named as Methodology for AGency ENTerprise Architecture (MAGENTA) to enable agencies to align to and fully support the government’s transformation objectives and outcomes. The program is now called Whole-of-Government Enterprise Architecture (WOG EA) and aims for end to end service delivery with integration and shared H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I approach SE - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 14 Click icon to add picture Denmark is Europe’s leader in the use of NEA. NEA was initiated in a white Paper in 2003 NEA implementation approach is based on incentives and ce K rien voluntarism, i.e. there are no rules, R pe regulations, governing standards and A Ex principles for NEA development in government. M al N tion E na D te r In This highly decentralized governance model provides liberty to municipalities to adopt it independently and get benefited from experience of mature and large size municipalities. NEA was initiated by the Ministry of Science, Technology and Innovation (MVTU) and is based on the Zachman framework. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 15 Click icon to add picture Norwegian Government developed a centralized architecture and translated into domain and organizational architectures at the local level. AYExpe W nal R tio O na N te r In nc e ri e It is mandatory for national agencies There is a strong emphasis on open standards and open software. The Norwegian NEA comprises technical, conceptual, organizational and procedural standards. It also includes a shared component library H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 16 Ministry of Finance initiated NEA program in 1990s. X INE R N F IN T R N E E DAMany countries learn from Finnish experiences. L NO N LA T I A P E IE C Finnish Government has been a leader in introducing ICT based reforms in public administration and services. The framework consists of four common viewpoints: business, information, application and technology. The framework is based on several famous frameworks such as FEA and TOGAF H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 17 NEA IMPLEMENTATIONS • Strongly Federated: Countries having strong federated structure have implemented this type of centralized NEA. Usually, these are small countries needing no decentralization. • Weakly Federated: Countries who have decentralized their structure at diferent sub-national levels implement a devolved NEA structure. Usually these countries are big in size and have large population. They may partially decentralize their NEA using devolved models. • Independent: Countries having nearly independent states/sub-nationals do not have a mandatory or controlled NEA structure. They have very broad level guidelines and leave the actual implementation of EA to the respective states/sub-nationals. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 18 DEVOLUTION / DECENTRALIZATION In the second half of the century, many countries embraced decentralization in terms of • political, • fiscal and • administrative powers “Devolution to lower levels has to involve a meaningful transfer of authority to be acceptable and to work effectively. It also has to maintain horizontal equity by ensuring a fair distribution of fiscal and other resources across the units” The “Soufflé” theory of decentralization described role of political, fiscal, and administrative decentralization. It proposed that only appropriate mixture of these types of decentralizations can produce results H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 19 DEVOLUTION IN E-GOVERNMENT Heeks categorized eight main areas of decentralization i-e planning, organizational structures and staffing, data management, computing and data management architecture, information systems development, information technology acquisition, training, and technical support A centralized approach requires very strong controls, whereas a partial decentralized approach in which few modules are centralized while few are decentralized can be cost efective and a better solution for both mature and undeveloped organizations. Richard Heeks recommended a ‘core-periphery approach to public information, a system that combines both central and local action, and is therefore most efective. In the Core-Periphery solution is defined as: “… core-periphery approach that attempts to reconcile the push of the centralized approach with the pull of the decentralized approach” (Heeks, 1999). H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 20 DEVOLUTION IN E-GOVERNMENT…… Federal level may devolve many powers and service delivery operations to sub-nationals (local government and municipalities) while policy, enterprise applications and related databases may be kept centralized. In this way, integration, standardization, security, technical experience and investment can be utilized in optimum manner. As a result, multiple levels of government need to rearrange their roles and intergovernmental relationships. Devolution in e-governance facilitates the transfer of few powers related to e-government activity from central government to sub-national level with respect to other devolutions such as political, fiscal and administrative power. e-Devolution highly depends on the devolution of political representation, fiscal management and administrative control of the e-government functions. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 21 POLITICAL REPRESENTATION • In a democratic regime, public representation is essential at local level for electronic service delivery to public and business sector. • Political ownership and “will” is also very important for the implementation set by central government. • Federal and state/provincial governments may select technocrats and political leaders for efective launching of e-services. • Local governments and municipalities may set targets for elected councilors for the mobilization and education of the people for usage of online services. • Individual participation like polls for need of e-services, quality and reliability of e-services, and Owning of ruling party, audit by opposition, and mobilization through none governmental organizations (NGO) or civil society organizations (CSO). • Trust in e-government services can be improved through these political participations • Political value chain is as significant in e-government as value chain in industrial business H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 22 FISCAL MANAGEMENT Fiscal devolution supports the political as well as administrative devolution and has major role in inter-governmental relations horizontally as well as vertically. Economists have believed that in fiscal autonomy can increase the efficiency and responsibility of sub-national governments. Many countries have granted greater fiscal autonomy to their sub-nationals for better planning, budgeting and revenue collection as per their socio-economic conditions. Fiscal devolution can provide liberty for the development projects as compared to the centralized fiscal regimes, however it poses considerable challenges for macroeconomic management. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 23 ADMINISTRATIVE CONTROL Reference to the scale of country and traditional administrative devolution, e-government devolution also needs a complete administrative role in delivering public services. Operations of e-services also need some degree of involvement of field staf, kiosks and back-offices. This requires administrative work-force at the local government level, hence requiring devolution in the administrative access of e-government portals or applications. High degree of collaboration is required between agencies at diferent levels, both horizontal as well as vertical to deliver e-services by using integrated information H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 24 ADOPTION OF DEVOLUTION APPROACH International experience may be summarized into three categories: • Decentralized such as Taiwan • devolved • centralized Singapore, the Netherlands, Korea, Switzerland and Japan have all both centralized and decentralized or devolved governance. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 25 Decentralized Approach Devolved Approach Centralized Approach Sub-nationals or local governments may develop their own software applications, databases, security models by using shared resources and provide online services to their respective stakeholders. One stop e-government having all centralized G2C, G2B, G2G and G2E services Implementation of few vital shared resources such as databases and applications Shared applications, databases and services Instructions for interoperability and integration of diferent independent software applications and databases of local governments Instructions for interoperability and integration of diferent independent software applications and databases of local governments Instructions for the usage of centralized services SOPs for operations Legislation related to complete decentralization Local government may establish e-governments of their own choice Legislation related to partial decentralization Local government may establish e-governments by adopting mandatory conditions Legislation related to partial decentralization Local government may establish e-governments by adopting mandatory conditions Legislation related to centralized e-government Local governments bound to follow the SOPs defined by Federal government Local governments may design and develop their own EAs Local governments may Local governments may design and develop their design and develop shadow Strong and comprehensive own EAs under the Federal W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E HTTP://W EAs under a comprehensive NEA government instructions T E C T U R E S - G O V E R N M E N T - D E V E L O P M E N T / 7 7 0 9 - A R C H I or 26 NEA broader NEA 1 Sub-nationals or local governments may develop their own software applications, databases, security models and provide online services to their respective stakeholders. Sub-nationals or local governments may develop their own software applications, databases, security models by considering the Federal Instructions and provide online services to their respective stakeholders. E-GOVERNMENT ARCHITECTURAL FRAMEWORK • e-Government is a complex and multidimensional enterprise system, and needs comprehensive plan for development, implementation and operations. • A National Enterprise Architecture integrates all the related initiatives. • NEA can connect horizontal as well as vertical relationship among national and sub-national levels. • Enterprise Architecture is the basic instrument for transformation and reconstruction of government • There are many generic EAs available. Five diferent Enterprise Architectures are selected for discussion in the light of devolution in e-government Zachman Framework RM-ODP (Reference Model- Open Distributed Processing) ARCON (A Reference Model for Collaboration Network) TOGAF (The Open Group Architectural Framework) FEAF (Federal Enterprise Architecture Framework ) H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 27 ZACHMAN FRAMEWORK • John Zachman introduced Zachman Enterprise Architecture Framework (ZF) in 1987 • It is the most famous framework among public and private sectors. • Majority of the enterprise architectures have been derived from John Zachman’s original framework • Zachman organized diferent information in an enterprise matrix. • Each cell of this matrix represents the relation to certain viewpoint (data, function, network, people, time, and motivation) and of the perception (contextual, conceptual, logical, physical, and out of context). • Each column estimates one of the Aristotelian questions: what, how, where, who, when and why. Each row corresponds to one of the roles: the planner, the owner, the designer, the builder, and the subcontractor • This framework is initiated at the planning level and then it bridges with lower sections containing the technical architecture. • Overall this framework delivers comprehensive knowledge about the business process and its technical development. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 28 H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 29 E-Devolution and Zachman Framework • Zachman Framework (ZF) has capability to facilitate the devolution approach for a centralized e-government. • Devolution in e-governance may be accommodated at fourth column “who” which can address organization, people and stakeholders. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 30 REFERENCE MODEL OF OPEN DISTRIBUTED PROCESSING (RM-ODP) • RM-ODP was introduced by International Organization for Standardization (ISO) and International Telecommunication Union (ITU) • German government implemented it as NEA with name known as SAGA (Standards and Architectures for e-Government Applications) • This EA has five viewpoints to explain a complex enterprise system. • • • • • Enterprise Viewpoint Information Viewpoint Computational Viewpoint Engineering Viewpoint Technology Viewpoint H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 31 REFERENCE MODEL OF OPEN DISTRIBUTED PROCESSING (RM-ODP) H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 32 A REFERENCE MODEL FOR COLLABORATION NETWORKS (ARCON) This consists of three perspectives (1) Life cycle perspective (2) Environment characteristics perspective (3) Model intents perspective These dimensions may be incorporated to establish a virtual government by collaborative prospective: “Virtual government – an alliance of governmental organizations (e.g. city hall, tax office, cadaster office, and civil infrastructures office) that combine their services through the use of computer networks to provide integrated services to the citizen through a common front-end” H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 33 ARCON H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 34 DEVOLUTION ASPECT IN ARCON H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 35 THE OPEN GROUP ARCHITECTURE FRAMEWORK (TOGAF) • TOGAF initiated by the Architecture Forum of The Open Group and progressing since the mid-1990s. TOGAF’s objective is to facilitate a broad range framework to develop architectures for enterprises and specifically for e-governments • A main area of TOGAF is Architecture Development Method (ADM) that describes the comprehensive processes from scratch to certain mature level. • Enterprise Continuum (EC) is very useful feature of TOGAF. ADM and EC facilitate the requirements of a large organization such as e-government where number of agencies and sub-national organizations are engaged. • ADM is based on feedback of experienced architectural practitioners. It suggests an approach for developing the enterprise architecture, and integrates the components of TOGAF. • The Enterprise Continuum is an important component for the communication and understanding. This is a "framework-within-a-framework". • e-Government requires enterprise continuum for its NEA implementation and also needs to develop common understanding among all the stakeholders. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 36 TOGAF TOGAF is based on the following four architecture domains with respect to e-devolution. • Business Architecture aims to address the strategy, policy, governance, organization, and business processes of the diferent government services. Reference to TOGAF as NEA, devolution architecture can also be easily explained here • Applications Architecture is the showcase for the technical specifications of application systems to be deployed. Most important sub domain of this architecture is the integration specifications. • Data Architecture includes the data sources of organization. In case of NEA, centralized and local databases should be documented with the comprehensive policies regarding data usage, ownership, updating and integration. • Technical Architecture focuses the ICT infrastructure including hardware, software and bandwidth necessary for electronic services to all stakeholders of e-government. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 37 TOGAF: DEVOLUTION H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 38 FEDERAL ENTERPRISE ARCHITECTURE FRAMEWORK (FEAF) • United States is the pioneer in EA technologies that was triggered by the Clinger-Cohen Act. • Federal CIO (Chief Information Officers) Council of USA introduced "Federal Enterprise Architecture Framework" (FEAF) Version 1.1 for developing EA for federal agencies. • The FEAF aims to provide a standard for developing and documenting architecture explanations. • A few countries are in the process to following this framework as NEA such as Australia. • It evolved from Zachman framework H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 39 Common between Zachman & FEAF Zachman Columns What How Where FEAF Columns Data Architecture Application Architecture Technology Architecture Planner Perspective List of Business Objects List of Business Processes List of Business Locations Owner Perspective Semantic Model Business Process Model Business Logistics System Designer Perspective Logical Data Model Application Architecture System Geographic Deployment Architecture Builder Perspective Physical Data Model Systems Design Technology Architecture Subcontractor Perspective H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E NetworkR I S E R/ENTERP Data Dictionary A R C H I T E CPrograms E R N M E N T - D E V E L O P M E N T / 7 7 0 9 TURES-GOV Architecture 1 40 REFERENCE MODELS OF FEAF FEAF architecture domains are business, data, applications, and technology. The Federal Enterprise Architecture Framework is built using following reference models • Performance Reference Model (PRM) • Business Reference Model (BRM) • Service Component Reference Model (SCRM) • Data Reference Model (DRM) • Technical Reference Model (TRM) H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 41 DEVOLUTION ASPECT IN FEAF H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 42 EVALUATION OF NEA Governments have to evaluate their investment and efforts spent for the implementation of NEA . Evaluation model may aim to assess the following objectives 1. reduced costs (no duplication of eforts, sharing of common resources) 2. providing a complete status of the enterprise, 3. assessment of business-IT alignment, 4. improved change management, 5. improved risk management, 6. improved interoperability and integration, and 7. shortened cycle times Above mentioned evaluation objectives are not limited. Reference to the “International Enterprise Architecture survey, 2006”, approximately 45% of the countries are measuring EA performance including USA, Switzerland, Japan, Taiwan and Denmark. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 43 SUMMARY • This chapter introduces the concept of National Enterprise Architecture (NEA) and emphasizes its importance. Adoption of NEA by diferent countries is also briefly discussed. • A review of e-government implementations of diferent countries indicates that governments adopt either a centralized, decentralized or a devolved governing structure based on their strongly federated, weakly federated or independent governance models • This chapter also discusses five diferent enterprise architecture frameworks in light of devolved e-government. • Zachman architecture is the pioneer and is reflected in the implementation of majority of the NEAs. • All of these frameworks can be implemented for three diferent governance structures. • RM-ODP and TOGAF are also generic architectures and frameworks that may be implemented on any governing structure. • However the Collaborative Network approach is more appropriate for countries having decentralized or independent governing model. • The NEAs are approaching a maturity stage. It is now needed to evaluate these NEA investments and eforts and assess their maturity level. H T T P : / / W W W. I G I - G L O B A L . C O M / C H A P T E R / E N T E R P R I S E - A RC H I T E C T U R E S - G O V E R N M E N T- D E V E L O P M E N T / 7 7 0 9 1 44





























