Enterprise Architecture

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Added 8 days ago

Yehia Ibrahim Alzoubi, Asif Qumer Gill, Bruce Moulton (2018)

A measurement model to analyze the effect of agile enterprise architecture on geographically distributed agile development

Efficient and effective communication (active communication) among stakeholders is thought to be central to agile development. However, in geographically distributed agile development (GDAD) environments, it can be difficult to achieve active communication among distributed teams due to challenges such as differences in proximity and time. To date, there is little empirical evidence about how active communication can be established to enhance GDAD performance. To address this knowledge gap, we develop and evaluate a measurement model to quantitatively analyze the impact of agile enterprise architecture (AEA) on GDAD communication and GDAD performance. The measurement model was developed and evaluated through developing the AEA driven GDAD model and associated measurement model based on the extensive literature review, model pre-testing, pilot testing, item screening, and empirical evaluation through a web-based quantitative questionnaire that contained 26 different weighted questions related to the model constructs (AEA, GDAD active communication, and GDAD performance). The measurement model evaluation resulted in validated research model and 26 measures: 7 formative items for AEA, 5 reflective items for communication efficiency, 4 reflective items for communication effectiveness, 2 reflective items for each on-time and on-budget completion, and 3 reflective items for each software functionality and quality. The results indicate the appropriateness and applicability of the proposed measurement model to quantitatively analyze the impact of AEA on GDAD communication and performance.

Added 8 days ago

Nicolas Mayer, Jocelyn Aubert, Eric Grandry, Christophe Feltus, Elio Goettelmann, Roel Wieringa (2018)

An integrated conceptual model for information system security risk management supported by enterprise architecture management

Risk management is today a major steering tool for any organisation wanting to deal with information system (IS) security. However, IS security risk management (ISSRM) remains a difficult process to establish and maintain, mainly in a context of multi-regulations with complex and inter-connected IS. We claim that a connection with enterprise architecture management (EAM) contributes to deal with these issues. A first step towards a better integration of both domains is to define an integrated EAM-ISSRM conceptual model. This paper is about the elaboration and validation of this model. To do so, we improve an existing ISSRM domain model, i.e. a conceptual model depicting the domain of ISSRM, with the concepts of EAM. The validation of the EAM-ISSRM integrated model is then performed with the help of a validation group assessing the utility and usability of the model.

Added 11 days ago

Roy Oberhauser (2018)

The Digital Diamond Framework: An Enterprise Architecture Framework for the Digital Age

Enterprise architecture (EA) frameworks of the past have attempted to support the cohesive and comprehensive modeling and documentation of the enterprise, often with a focus on business and information technology (IT). However, the digitalization of enterprises and the complexity of IT have outgrown these matrix box-like frameworks. This paper proposes a digital, holistic, and sustainable EA framework, called the Digital Diamond Framework, to support digitized enterprises in aligning the real EA state with the desired state.

Shuichiro Yamamoto, Nada Ibrahem Olayan, Shuji Morisaki (2018)

Another Look at Enterprise Architecture Framework

Although there were many comparison literatures of EA frameworks, these literature use qualitative criteria based on intuitive practitioner’s experience. The paper first defines 36 concrete features of EA frameworks using six categories and six interrogatives. Then we concretely compare typical EA frameworks based on the key features. The result shows the easiness and concreteness of the proposed EA comparison framework.

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Negin Banaeianjahromi (2018)

On the Role of Enterprise Architecture in Enterprise Integration

In the current business era, it is crucial for an organization to understand the rapidly changing environment of today. To swiftly respond to the changing environment, an organization must provide enterprise integration (EI) not only internally, but also externally, with its customers and suppliers. Many approaches and technologies have been proposed to facilitate EI - however, due to its complexity, integration has remained a continuous challenge in organizations. One of the major integration obstacles is maintaining architectural descriptions of the organization. Architectural descriptions, or Enterprise Architecture (EA), provides a comprehensive view of all the organizational entities and their relationships to achieve an organization’s strategic goals. Many studies have referred to EA as a solution to facilitate EI in organizations. However, developing EA is not easy to achieve. This PhD dissertation aims to facilitate integration projects by approaching EA obstacles from a social and organizational perspective. The main research question is What is the role of EA and its obstacles in EI? A qualitative and interpretive research approach is applied in this dissertation. The data was collected through interviews with practitioners from 17 large organizations and analyzed using the Grounded Theory method. The study first investigates the EI obstacles and identifies EA maintenance as a major obstacle in EI projects. After identifying the EA obstacles, the dissertation further investigates them to understand the issues in EA development that prevent EA from being efficient. By investigating the obstacles in EA development, this research shows that if not addressed properly beforehand, the obstacles follow EA through the development process. Most of the identified obstacles are social and organizational issues. The results indicate a ‘lack of communication and collaboration’ as the root obstacle in EA development that can address most of the other obstacles. Revisiting the data from a communication and collaboration point of view, the results reveal ‘organizational culture’ and ‘clarity in EA development process’ as additional causes of the lack of communication and collaboration in EA development. Furthermore, ‘personnel’s distrust’ and ‘organization loses its competitive edge’ are identified as additional effects of the lack of communication and collaboration in EA development. Finally, this study provides some recommendations to facilitate EA development for researchers and practitioners.

Mengmeng Zhang, Honghui Chen, Aimin Luo (2018)

A Systematic Review of Business-IT Alignment Research with Enterprise Architecture

Because of the dynamic environments of business and IT, achieving any alignment between the two fields has become challenging. In view of its multiple viewpoints and artifacts, the discipline of Enterprise Architecture (EA) is often regarded as an effective methodology to deal with BITA issues, and thus has attracted plenty of research. This article conducts a systematic literature review of BITA research using EA. Six questions are answered through 5W1H (When, Who, What, Why, Where, How) analysis. These questions aim to acquire a thorough understanding of BITA from the perspective of EA, to discover weak points in the status quo, and to identify future research directions.

Jan A.P. Hoogervorst (2004)

Enterprise Architecture: Enabling Integration, Agility and Change

Three core imperatives are essential for modern businesses and organizations: seamless integration of customer and operational processes, agility, and the ability to change. These imperatives are relevant in view of successfully executing strategic choices, but all too often not satisfied. Businesses and organizations are complex adaptive socio-technical systems and can be viewed from two fundamentally different perspectives: the functional (black-box) perspective and the constructional (white-box) perspective. Management and governance of businesses and organizations regard the functional, black-box perspective, which is inherently ill-suited for addressing the imperatives mentioned. It will be argued that establishing system integration, agility and change requires a focus on the system's design, hence necessitates the constructional perspective. The concept of architecture is considered fundamental for operationalizing the constructional perspective. Next to the more familiar notion of technology architecture, the concepts of business, organizational and information architecture are formally introduced and elucidated. Various domains within these architectures will be highlighted, whereby the importance of coherence and consistency is stressed, especially in view of the ability to change. Collectively, the four architectures are labeled Enterprise Architecture. Finally, enterprise architecture will be positioned as a crucial means for linking strategy development and execution.

Kari Korpela, Usva Kuusiholma, Aalto, Ossi Taipale, Jukka Hallikas (2013)

A Framework for Exploring Digital Business Ecosystems

ICT-enabled business solutions have created a possibility for automated business relations and transactions. Digital business ecosystems are becoming an increasingly popular concept for modeling and building distributed systems in heterogeneous, decentralized and open environments. However, traditional economic and computing theories do not focus on digital business ecosystems as a separate form of organization and they do not provide conceptual frameworks that can be used to explore digital business ecosystems. In this paper, we present a framework for exploring digital business ecosystems developed from Zachman’s enterprise architecture. This framework serves as a structure for exploring the value network and the enterprise as part of a digital business ecosystem.

Paul Drews, Ingrid Schirmer (2014)

From Enterprise Architecture to Business Ecosystem Architecture: Stages and challenges for extending architectures beyond organizational boundaries

Today, Enterprises act in an increasingly interconnected world and in different kinds of collaborative networks. They are part of business ecosystems in which they interact with their customers, partners and competitors. The processes of analyzing and planning the intertwinement of business and IT architecture within enterprises has been successfully supported by enterprise architecture management (EAM) approaches. In this paper, we analyze four cases from different industries (health care, logistics, retail, and education) and argue that the intra-organizational concepts of enterprise architectures (EA) and EAM need to be extended to grasp the challenges of the enterprises’ interconnectedness. Beyond the known concepts of extended enterprise architecture and federated architectures, we define five stages of extended architectures. Additionally, we describe challenges and existing solutions, which are relevant for this extended perspective.

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Shailesh Joshi (2018)

In the Age of Digital Disruption, the Role of Enterprise Architect is Pivotal

Multi-faceted. Dynamic. Experienced. These are just some of characteristics of an enterprise architect. In the age of digital transformation, enterprise architects help bridge the divide between IT and the business. They help organizations align IT strategy, technology and processes with broader business goals, with the ultimate objective of creating more agility and flexibility throughout the enterprise.

Amjad Fayoumi (2016)

Ecosystem-inspired enterprise modelling framework for collaborative and networked manufacturing systems

Rapid changes in the open manufacturing environment are imminent due to the increase of customer demand, global competition, and digital fusion. This has exponentially increased both complexity and uncertainty in the manufacturing landscape, creating serious challenges for competitive enterprises. For enterprises to remain competitive, analysing manufacturing activities and designing systems to address emergent needs, in a timely and efficient manner, is understood to be crucial. However, existing analysis and design approaches adopt a narrow diagnostic focus on either managerial or engineering aspects and neglect to consider the holistic complex behaviour of enterprises in a collaborative manufacturing network (CMN). It has been suggested that reflecting upon ecosystem theory may bring a better understanding of how to analyse the CMN. The research presented in this paper draws on a theoretical discussion with aim to demonstrate a facilitating approach to those analysis and design tasks. This approach was later operationalised using enterprise modelling (EM) techniques in a novel, developed framework that enhanced systematic analysis, design, and business-IT alignment. It is expected that this research view is opening a new field of investigation.

Neeraj Singh (2018)

Strategic Operating Model for Enterprise Architecture

A sophisticated framework for strategic operating model is presented here which helps develop the IT foundation in order to execute IT-Strategy. The driving force behind the projected operating model is the need of IT alignment with business. There are key approaches used in this paper to shape our operating model: a) SOA: Service orientation approach for each phase of Enterprise Architecture, b) Governance: Automated process to govern the strategy into each enterprise application, c) Evolution: Although strategy drives enterprise architecture, it also evolves in bottom-up fashion. This operating model integrates several frameworks to lead a basis of standard and effective IT.

Joshua Chibuike Nwokeji, Faisal Aqlan, Tony Clark, Balbir Barn, Vinay Kulkarni (2018)

A Modelling Technique for Enterprise Agility

Enterprise agility, i .e., the ability of enterprises to respond to changes, is a core imperative for effective change management. It can improve operational efficiency as well as support resource optimization. Yet, it is challenging and a major concern for corporate executives. To facilitate agility, it can be useful to design modeling constructs for representing changes. Such modeling constructs can help stakeholders to represent and better understand change concepts. This research contributes by extending existing enterprise modeling approaches with new modeling constructs for representing concepts of change. These modeling constructs are integrated into a conceptual model. To demonstrate utility, we apply this meta-model to represent a real-world case study and discuss some lessons learned in this process. One major challenge faced by

Pouya Aleatrati Khosroshahi, Matheus Hauder, Stefan Volkert, Florian Matthes, Martin Gernegroß (2018)

Business Capability Maps: Current Practices and Use Cases for Enterprise Architecture Management

This paper provides a state-of-the-art report on the usage of business capability maps in enterprise architecture management. We conducted expert interviews with 25 organizations to reveal the benefits and challenges of capability-based enterprise architecture management and evaluated 14 use cases on the feasibility and benefit of using business capability maps in practice. The results reveal increasing interest and acceptance of the approach in practice and among support organizations.

Marcus Fischer, Florian Imgrund, Gregor Friedrich-Baasner, Christian Janiesch, Axel Winkelmann (2018)

Connected Enterprise Meets Connected Customer - A Design Approach

In an increasingly digitized environment, enterprises face new challenges. Enabled by ubiquitous Internet accessibility, people, places, and products have become more interconnected and are gradually merging into the Internet of Everything. Simultaneously, a new generation of connected customers is emerging that is establishing new requirements for the capabilities of enterprises to communicate, interact, and respond to unforeseen events. As customer satisfaction is the central source of future competitiveness, companies must initiate a transformation towards a connected enterprise. By analyzing the characteristics of the connected customer, this paper presents guidelines for enterprises to address customer needs adequately and manage their operations in the Internet of Everything. Building upon established enterprise architecture frameworks, we apply a Design Science Research procedure to derive four practical recommendations. Thus, enterprises must manage their business processes holistically, implement information systems and standards for data exchange, provide mechanisms for real-time business intelligence, and determine their optimal degree of connectivity.

Lena Hylving, Bendik Bygstad (2018)

Responding to Enterprise Architecture Initiatives: Loyalty, Voice and Exit

Many large organizations have on-going Enterprise Architecture initiatives. Key aims include achieving more organizational agility, and to tidy up a messy portfolio of IT silo systems. A holistic approach to IT architecture has been an accepted strategy, but the results of these initiatives have been variable. An under-researched aspect is how different organizational units respond to the call for a holistic approach. In this study, we investigate how different stakeholders connected to three ongoing projects responded to the call for EA. With a qualitative approach, we identify three options of response to EA initiatives: (i) compliance with the EA strategy, (ii) loyal but isolated response, and (iii) rebel solutions. We argue for the need of a more nuanced repertoire of actions for dealing with EA, and show how these responses are useful for understanding and managing successful EA.

Simon Hacks, Maximilian Brosius, Stephan Aier (2017)

A Case Study of Stakeholder Concerns on EAM

As a result of growing complexities in business processes, information systems, and the technical infrastructure, a key challenge for enterprise architecture management (EAM) is to guide stakeholders from different hierarchical levels with heterogeneous concerns. EA deliverables, such as models or frameworks, are often highly comprehensive and standardized. However, these can hardly be applied without greater adaption. Although the literature selectively covers approaches for tailoring EA deliverables closer to the concerns of affected stakeholders, these approaches are often vague or not very differentiated. In the paper at hand, we aim at introducing a stakeholder perspective to EAM research that considers stakeholder concerns on EAM across hierarchical levels. To this end, we conduct a case study: Our results show homogenous concerns among stakeholders on EA deliverables. In turn, we found different concerns on the role of EAM in applying these deliverables, dependent on the hierarchical level of stakeholders. These findings stress the necessity for a more differentiated understanding of stakeholder concerns on EAM. Finally, we discuss the implications of our findings for an exemplary EAM approach.

Felix Sanchez-Puchol, Joan A. Pastor-Collado (2017)

A First Literature Review On Enterprise Reference Architecture

Enterprise Reference Architectures have been increasingly emerging as new standardized architectural description artefacts suitable to provide a frame of reference for a particular business domains. Used in an appropriate way, they can be a useful tool for improving enterprise architecture management practices. Whilst from a practitioners perspective several instances of such architectures have been created over the past years, little research on such artefacts has been done to date. Hence, academia still lacks a comprehensible overview of prior literature on Enterprise Reference Architectures, despite the relevance of literature reviews to knowledge advancement in any scientific field. To close this gap, in this paper we present a primer literature review on Enterprise Reference Architectures conducted following general guidelines proposed for undertaking information systems reviews. Similarly to precedent contributions addressing enterprise architecture oriented topics, we introduce a novel classification framework based on Gregor‘s theory types of information systems to structure and summarize former research. Major findings from significant studies on the topic are then identified, analysed and mapped into the referred framework. Based on the analysis and results of the review, brief suggestions to stimulate further research on the design, improvement and application of Enterprise Reference Architectures are also derived.

Jonathan Vallerand, James Lapalme, Alexandre Moïse (2015)

Analysing enterprise architecture maturity models: a learning perspective

In order to aid organisations in the adoption of enterprise architecture (EA) best practices, maturity models have been proposed in the literature. These models offer organisational roadmaps and assessment frameworks for increasing EA maturity. However, key questions concerning the implied meaning of the term maturity in the context of these models have been left unexplored by previous research. This research, aided by the field of organisational learning, offers new insights into the implied assumptions of current EA maturity models and offers initial concepts and constructs to guide the conceptualisation, construction and refinement of enterprise maturity models.

Dinh Duong Dang, Samuli Pekkola (2017)

Systematic literature review on enterprise architecture in the public sector

Enterprise architecture (EA) is an approach to improve the alignment between the organization’s business and their information technologies. It attempts to capture the status of the organizations’ business architecture, information resources, information systems, and technologies so that the gaps and weaknesses in their processes and infrastructures can be identified, and development directions planned. For this reason, EA has become a popular approach also in the public sector to increase their efficiency and ICT utilization. Yet researchers have largely ignored this context, and it seems that quite little is known about how EA is developed, implemented, or adapted in different countries and in the public sector. We thus conducted a systematic literature review to identify the major research topics and methods in studies focusing on public sector EA. We analyzed 71 identified articles from the past 15 years. Our analysis shows that the development viewpoint, case studies in developed countries, and local settings seem to form mainstream EA research in the public sector. Taken together, it seems that public sector EA is scattered, and there is no strong, single research stream. Instead the researchers conduct local case studies. This means the knowledge on EA development, implementation or adaptation, their challenges and best practices does not accumulate. There is consequently a need for more research in general, and targeted research in some specific segments.

Tom Hope, Eng Chew, Rajeev Sharma (2017)

The Failure of Success Factors: Lessons from Success and Failure Cases of Enterprise Architecture Implementation

Many Enterprise Architecture programmes fail to meet expectations. While much has been written about the factors influencing the success of EA programmes, there are few empirical investigations of the role of critical success factors (CSFs) in the success of EA programmes. This study condensed the very broad literature on CSFs for EA identifying six key CSFs that share a broad consensus in the literature. A qualitative case study was conducted to test the hypothesis that the six key CSFs would distinguish between the successful and the unsuccessful programmes. Analysis of the case study data reveals that three key CSFs associated with the use of EA tools did not distinguish between successful and unsuccessful cases while three key CSFs related to the process of EA programme implementation did so. The study concludes that success in EA programmes comes more from how architecture is practiced than what is practiced. The findings have important implications for EA suggesting that the methodological skills of architects need to be supplemented with an understanding of practice.

Siyanda Nkundla-Mgudlwa, Jan C. Mentz (2017)

A Synthesis of Enterprise Architecture Effectiveness Constructs

Companies throughout the world use Enterprise Architecture (EA) because of benefits such as the alignment of business to Information Technology (IT), centralisation of decision making and cost reductions due to standardisation of business processes and business systems. Even though EA offers organisational benefits, EA projects are reported as being costly, time consuming and require tremendous effort. Companies therefore seek to ascertain ways to measure the effectiveness of EA implementation because of the money and time being spent on EA projects. EA Effectiveness refers to the degree in which EA helps to achieve the collective goals of the organisation and its measurement depends on a list of constructs that can be used to measure the effectiveness of EA implementation. Currently, there exist no comprehensive list of constructs that are suitable to measure the effectiveness of EA implementation. The paper reports on the results of a study that explored the development of a compreh ensive list of constructs suitable for measuring the effectiveness of EA implementation. The artefact developed in this research study is called Enterprise Architecture Effectiveness Constructs (EAEC). The EAEC consists of 6 constructs namely: - alignment

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Torben Tambo (2017)

Enterprise Architecture beyond the Enterprise - Extended Enterprise Architecture Revisited

As the most enterprises are relying on relations to other enterprises, it is relevant to consider enterprise architecture for inter-organisational relations particularly those relations involving technology. This has been conceptualised as Extended Enterprise Architecture, and a systematic review of this discipline is the topic of this paper. This paper is taking a point of departure in general theories of business-to-business relationships along with inter-organisational information systems, interoperability and business ecosystems. The general theories are applied to the Extended Enterprise Architecture to emphasize paradoxes, problems and potentials in extending EA across organisational boundaries. The purpose of this paper is to review the concept of Extended Enterprise Architecture (EEA) theoretically and empirically to identify viability of Enterprise Architecture (EA) initiatives spanning across organisational boundaries. A case is presented of an enterprise engaging in technology-based business process integration that in turn is explicated as enterprise architecture initiatives with both more and less powerful partners. This paper underlines the necessity to be able to have EA spanning initiatives across multiple enterprises, but a range of problems is illuminated related to (lack of) precision, imbalance, heterogeneity, transformation, temporality, and (operational) maturity. The concept of EEA is seemingly vague, however this paper calls for a strengthen emphasis on redefining general architectural frameworks to embrace EEA in order to handle typical and modern forms of organisational designs relying on virtual and cross-company as cornerstones.

Melanie Langermeier, Bernhard Bauer (2017)

Generic EA Analysis Framework for the Definition and Automatic Execution of Analyses

Analysis is an essential part in the Enterprise Architecture Management lifecycle. An in-depth consideration of the architecture obtains its strengths and weaknesses. This provides a sound foundation for the future evolution of the architecture as well as for decision-making regarding new projects. Current literature provides a large number of different analysis approaches, targeting different goals and utilizing different techniques. To provide a common interface to analysis activities we studied the corresponding literature in previous research. Based on these results we develop a language for the definition of EA analyses as well as an execution environment for their evaluation. To cope with the high variety of meta models in the EA domain, the framework provides a uniform and tool independent access to analysis activities. Additionally it can be used to provide an EA analysis library, where the architect is able to select predefined analyses according to his specific requirements.

Nestori Syynimaa (2017)

The Quest for Underpinning Theory of Enterprise Architecture - General Systems Theory

Enterprise architecture originates from the 1980’s. It emerged among ICT practitioners to solve complex problems related to information systems. Currently EA is also utilised to solve business problems, although the focus is still in ICT and its alignment with business. EA can be defined as a description of the current and future states of the enterprise, and as a change between these states to meet stakeholder’s goals. Despite its popularity and 30 years of age, the literature review conducted on top information and management science journals revealed that EA is still lacking the sound theoretical foundation. In this conceptual paper, we propose General Systems Theory (GST) for underpinning theory of EA. GST allows us to see enterprises as systems of systems consisting of, for instance, social organisations, humans, information systems and computers. This explains why EA can be used to describe the enterprise and its components, and how to control them to execute the managed change. Implications to science and practice, and some directions for future research are also provided.

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