Enterprise Architecture Application

This case study explores the use of ArchiMate and TOGAF standards in the context of enterprise architecture. It covers business, information system, and technology architecture, as well as opportunity and solution migration planning.

Enterprise architecture application
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Table of Contents
Introduction..................................................................................................................................................................... 2
ArchiMate and TOGAF standards.................................................................................................................................... 3
Background...................................................................................................................................................................... 4
Architectural version........................................................................................................................................................ 5
Business architecture........................................................................................................................................................ 7
Information system architecture (application).................................................................................................................. 9
Information system architecture (data)............................................................................................................................. 9
Technology Architecture................................................................................................................................................... 9
Opportunity & solution migration planning................................................................................................................... 10
Conclusion..................................................................................................................................................................... 10
Introduction
This fictitious Case Study illustrates the realistic use of the ArchiMate enterprise modelling
language in the context of the TOGAF framework. The Case Study concerns the insurance
company ArchiSurance, the result of a merger of three previously independent companies based
in different metropolitan areas.
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This Case Study shows Baseline and Target Business, Application, Data, and Technology
Architectures, making use of the appropriate ArchiMate or TOGAF viewpoints. The study
incorporates two change scenarios: Rationalization and Digital Transformation will be
investigated.
ArchiMate and TOGAF standards
Frameworks for Enterprise Architecture cover different aspects of architecture practice. They
may have, among others, any combination of the following ingredients:
• A method for creating architectures
• A set or classification of viewpoints
• A language for describing architectures including language element definitions and notations
The Open Group maintains two open standards for Enterprise Architecture: the TOGAF
framework and the ArchiMate modeling language. The core of the TOGAF framework is a
method for Enterprise Architecture development and implementation: the Architecture
Development Method (ADM). The TOGAF framework also describes viewpoints, techniques,
and reference models, as well as a content framework that identifies the types of building blocks
that make up an architecture. However, the TOGAF framework does not prescribe the use of a
specific modeling language to create architectural views.
The ArchiMate standard is a graphical language that provides a uniform representation for
models that can support the complete architecture development cycle. The ArchiMate 3.0
Specification consists of a core language, aimed at the description of Business, Information
Systems, IT, and physical Technology Architectures, and their inter-relationships. The ArchiMate
3.0 Specification also contains elements to model business and technology strategy; motivations
driving architecture development; and plans for architecture implementation and migration.
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Background
Complement each other in that the TOGAF standard focuses on a method for developing and
implementing architectures, while the ArchiMate standard focuses on a uniform language for
modeling architectures. The ArchiMate language, as described in The Open Group standard
complements the TOGAF framework in that it provides a vendor-independent set of concepts
and relationships, including a graphical representation that helps to create a consistent, integrated
model, which can be depicted in the form of views. While the ArchiMate language defines its
own example viewpoints that serve as templates for a broad range of views, the language can
also be used to construct the diagrams defined in the TOGAF Architecture Content Framework.
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Architectural version
The lead investors of the three companies began merger talks after they noticed that lower-cost
competitors were entering their markets, that there were new opportunities in high-growth
regions, and that each company required significant new IT investments to remain competitive.
They realized that only a larger, combined company could simultaneously control its costs,
maintain its customer satisfaction, invest in new technology, and take advantage of emerging
markets with high growth potential. The merger negotiations and regulatory approvals took 18
months, but two years ago the papers were signed and the merger was complete.
The new company offers all the insurance products of the three pre-merger companies, and
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intends to frequently adjust its offerings in response to changing market conditions. Like its three
predecessors, ArchiSurance sells directly to customers via web, email, telephone, and postal mail
channels, and indirectly via intermediaries
Architectural design of the customer view points,
Based on its business goals, ArchiSurance defines a set of principles to guide its architecture
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development. The ArchiMate standard defines a principle as a realized qualitative statement of
intent that must be met by the architecture. Note that the systems here include, for example,
organizations and organization units, not only IT systems. Principles, therefore, help realize
business goals. The TOGAF standard also defines a principle as a qualitative statement of intent
that should be met by an architecture. A TOGAF principle must have at least a supporting
rationale and a measure of importance on the TOGAF application
Business goal strategy,
Business architecture
An important element of the Architecture Vision is a high-level representation of the Target
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Architecture and how this provides a solution to the needs of the enterprise, to explain the added
value of the architecture effort to stakeholders. The TOGAF Solution Concept diagram can be
created with the ArchiMate language for this purpose. Figure 8 highlights the most important
aspects of the Target Architecture, showing requirements and outcomes derived from both the
Rationalization and the Digital Customer Intimacy strategies:
• Enterprise-wide CRM automation in the front-office, to replace individual CRM systems.
After the merger, ArchiSurance set up a shared front-office as a multi-channel contact center for
sales and customer service, with a primary contact center at the pre-merger headquarters of
Home & Away. There are still three separate back-offices that handle the insurance products of
the three original companies. A Shared Service Center (SSC) has been established for document
processing at the pre-merger headquarters of PROFIT. The center administers the central
document repository as well as all automated document workflows. In addition, it performs all
scanning, printing, and archiving for legally binding documents as they enter or leave
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ArchiSurance. To ensure business continuity and handle periods of peak activity, the SSC also
hosts trained personnel and equipment to perform the functions of the front-office, which is
similarly prepared to reciprocate.
In Phase B (Business Architecture) of the TOGAF ADM, the ArchiMate language can express
and relate ArchiSurance organizational structure, products, services, functions, processes, and
information. The Business Architecture provides context for the Data, Application, and
Technology Architectures.
Information system architecture (application)
Information system architecture (data)
Technology Architecture
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Opportunity & solution migration planning
Conclusion
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