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Transcript of Engg Vikas Sarin
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Sapient Global MarketsMARCH 2015
Vikas Sarin,PMP,M.E.(SS)
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2© COPYRIGHT 2013 SAPIENT CORPORATION | CONFIDENTIAL
Agenda• What is Enterprise?• What is Architecture?• Necessity of EA• Risks Without EA• Motivations for EA• What is Enterprise Architecture?• EA Layered Model, Functions and Responsibilities• Macro View of EA and Events for Changes• Firm and EA Principles• EA Frameworks and Relationships• EA Governance• EA Standards• EA Tools• Comparisons of EAFs• References
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What is Enterprise?• Enterprise is any collection of corporate or institutional task-supporting functional entities that
have a set of common goals or s single mandate.• An entire corporation, a division or department of a corporation, a group of geographically
dispersed organizations linked together by common administrative ownership, a government agency, a group of government agencies, etc.
• Extended enterprise is a logical aggregation that includes internal business units of a firm along with partners, customers and suppliers
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What is Architecture• ANSI/IEEE Std 1471-2000 describes an architecture as “the fundamental organization of a system,
embodied in its components, their relationships to each other and the environment, and the principles governing its design and evolution.”
• Types of Architectures:
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Necessity of EA
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Risks Without EA• Locally optimal, rather than globally optimal solutions• Expensive, nonshared, RTE-intensive solutions• Closed vendor/proprietary environments - little leverage• Vendor enslavement• Suboptimal service from a cost, feature, and portability perspective• Excessive, unhealthy reliance on vendor, which may not have a firm’s best interests at heart• Failure to follow industry standards or regulatory compliance• Not achieving best-in-class/best-in-breed solutions• Inappropriate visibility due to nonoptimal SLA metrics• Infrastructure becomes outdated and expensive• Expensive, unhealthy reliance on vendor, which may not have firm’s best interests at heart• Failure to follow industry standards or regulatory compliance• Not achieving best-in-class/best-in-breed solutions
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Motivations for EA
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What is Enterprise Architecture?• The Enterprise Architecture is a unified IT environment blueprint (standardized harware and
software systems) across the firm or all of the firm’s business units, with tight symbiotic links to the business side of the organization and its strategy. More specifically, enterprise architecture promotes alignment, standardization, reuse of existing IT assets, and the sharing of common methods for project management and software development across the organization. Thus, EA makes the IT cheaper, more strategic, aligned to business and more responsive.
• Layered model of EA:
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EA Layered Model Functions
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EA Model Functions and Responsibilities
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Macro View of EA
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Events Triggering Refresh of EA
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Firm Tiered Principles
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EA 16 Principles
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Enterprise Architecture Frameworks
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Relationships among EA Frameworks
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Enterprise Architecture Framework
Results
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Zachman Framework
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TOGAF (The Open Group Architecture Framework)
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DoDAF (Department of Defense Architecture Framework)
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Extended Enterprise Architecture Framework (E2AF)
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EAP (Enterprise Architecture Planning) Framework
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FEA (Federal Enterprise Architecture)
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FEAF Structure
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TEAF (Treasury Enterprise Architecture Framework)
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Enterprise Architecture GovernanceThe Enforcement Policy of EA must contain the following:
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EA Standards
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EA Tools
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Comparisons of EAFs (Views/Perspectives)• Comparison by Views/Perspectives
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Comparison of EAFs (Abstractions)• Comparison by Abstractions:
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Comparison of EAFs (SDLC Phases)• Comparison by SDLC Phases:
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References• EA Book - http://www.amazon.com/Enterprise-Architecture-Frameworks-Infrastructure-
Technology-ebook/dp/B00866H8L4/ref=sr_1_1_twi_2_kin?ie=UTF8&qid=1427602522&sr=8-1&keywords=enterprise+architecture+a+to+z+frameworks+business+process+modeling+soa+and+infrastructure+technology
• Comparisons in Microsoft MSDN - https://msdn.microsoft.com/en-us/library/bb466232.aspx • Comparisons - http://ggatz.com/images/SOA_COMPARE.pdf
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Thank You!