agile ppt final
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Agile Architecture
e-Infochips Institute of Training Research and Academics Limited
Prepared By:Monika SanghaniNirali Savani
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Motivation
Design Process
Construction Flavor
Conclusion
Takeaways
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Innovation Drives Business…
• Evolutionary Innovation keeps your business running only and is not in focus of the business nowadays (e.g. VW Beetle).
• Revolutionary Innovation guarantees nowadays the business success (e.g. electric car)
• Disruptive Innovation changes existing or creates new markets causing old business to die (e.g. digital camera).
…and requires supporting IT.
Motivation
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Revolutionary or Disruptive Driven Business…
• Architecture is the fundamental organization of a system embodied in its components, their relationships to each other, and to the environment and the principles guiding its design and evolution.
• Architecture represents the significant design decisions that shape a system, where significant is measured by cost of change.
• Architecture is non-functional. Architecture is about Quality.
…needs Architecture, Agile Architecture.
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Architecture Empowers…
• Declarative knowledge is the type of knowledge that is, by its very nature, expressed in declarative sentences or indicative propositions.
• Declarative knowledge focuses on the answer to the question “why am I able to do it”.
• Procedural knowledge in opposition focuses on the answer to the question “how to do it”.
…Declarative Knowledge.
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The Promise of the Agile Architecture
• Reduction of risks throughout transparency, abstractions and partitioning.
• Precise definition and understanding of your business.
• Active collaboration of the domain and IT experts on the software design.
• Clean definition of the boundaries around abstractions.
• Better organization of your enterprise architecture.
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Agile Architecture Focuses On Simplicity using Transparency, Abstractions and Partitioning
• Transparency investigates the “as-is” architectural state.
• Abstractions focus using models on the essential architectural challenges.
• Partitioning creates taxonomy for grouping architectural elements.
…Complexity is the Disease , Simplicity is the Cure
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Transparency Helps to Define As-Is and Desired State.
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Abstractions Help to Find Solutions to the Real World Problems.
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Partitioning Helps to Structure the Functionality of a Software System
• Reduces complexity of any system.• Closely related to a mathematical
concept known as equivalence relations.
• The most important equivalence relation, from the perspective of enterprise architecture, is synergy.
• Two functions are synergistic when each requires the other to be effective.
• Synergy is closely related to an inverse equivalence relation called autonomy.
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Interaction Between Business and IT Architectures
Design Process
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Functional Domains Represent the Glue between Business and IT Architectures
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Agile Architecture is Based on the Lean Process Principles
• Defer commitment and decide as late as possible• Deliver as fast as possible• See and optimize the whole• Work iterative and incremental
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How Much Architecture Remains Agile?
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Agile Architecture in 10 Steps
Are From Design Process : Step 1: Identification of the Business Domains
Step 2: Creation of a Business Entity Model
Step 3: Creation of the Ubiquitous Language
Step 4: Definition of the Initial Process Architecture
Step 5: Modelling of the Core Business Processes
Step 6: Definition of Vertical Requirements Based on Process Models
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Are From Construction flavor :
Step 7: Definition of the Bounded Contexts
Step 8: Definition of the BD/QA(Business Domain/Quality Attribute) Relevancy Matrix
Step 9: Definition of the Solution Strategies
Step 10: Definition of the Building Blocks
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Agile Architecture is Business Centric
Construction Flavor
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Agile Architecture Uses Core Concepts of Domain Driven Design
• At the heart of DDD (Domain Driven Design) lies the concept of the domain model.
• Domain models are typically composed of elements such as entities, value objects, aggregates, and described using terms from a ubiquitous language.
• A bounded context is the context for one particular domain model and defines implementation boundaries.
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Quality(non-Functional) Attributes that Drive Agile Architecture
• Performance and Scalability -ability of asystem to predictably execute within its mandated performance profile and to handle increased processing volumes in the future.
• Availability and Resilience -ability of a system to be fully or partly operational as and when required and to effectively handle failures that could affect system availability.
• Evolution-ability of a system to be flexible in the face of the inevitable change that all systems experience after deployment, balanced against the costs of providing such flexibility.
• Security-ability of the system to reliably control, monitor, and audit who can perform what actions on which resources and the ability to detect and recover from security breaches.
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Solution Strategies Are Backbone of the Agile Architecture
• Solution strategies are core concept of the agile architecture due their focus on business value delivered by the solution.
• Solution strategies allow proper reasoning about architecture describing internal structure of the elements and collaboration between them.
• Best created using composite UML diagram type.
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Building Blocks Make Business Architecture Part of IT
• Building Blocks are counterparts to the Solution Strategies
• They focus on the technical design used where it should have most pay-off
• Similar to the solution strategies, building blocks describe elements and their relations
• Best created using components UML diagram type
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Agile Architecture Process Summary Review, Refine & Extend, Repeat
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Agile Architecture : Takeaways
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Thank you