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Pattern Driven Enterprise Architecture

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To view recording of this webinar please use below URL:

http://wso2.com/library/webinars/2015/09/building-an-enterprise-architecture-with-patterns/


The previous sessions focused on various high level patterns for building effective enterprise architectures (EA). From traditional SOA to resource oriented architectures, and from patterns that are seeing a lot of traction such as event driven architectures to web oriented architectures. These high level concepts provide many best practices and guidelines to enterprise architects looking to evolve their existing EA or for those creating newer EA strategies. But where should you draw the line? Where would an EDA really make sense? Is SOA still the way to go or should we turn our attention to a more granular version of this?

This session wraps up all these four architectural styles. It will

Summarize our findings
Critically analyze the good, the bad and the ugly (if any) of the various patterns
Jointly figure out where they should really fit in

Published in: Technology
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Pattern Driven Enterprise Architecture

  1. 1. Pattern Driven Enterprise Architecture Mifan Careem Director, Solutions Architecture, WSO2
  2. 2. Event Driven Architecture Shiroshika Service Oriented Architecture Dassana Resource Oriented Architecture Nuwan Web Oriented Architecture Senaka
  3. 3. o  Definitions – Patterns, EA o  EA Frameworks – Zachman, TOGAF, Gartner o  Patterns in EA o  SOA, ROA, EDA and more o  Building an EA with patterns o  How to get there o  Agility and Change – NFRs o  Iterative Architecture 3  
  4. 4. 4   An architectural pattern is a general, reusable solution to a commonly occurring problem in software architecture within a given context.
  5. 5. 5   Enterprise architecture (EA) is a well-defined practice for conducting enterprise analysis, design, planning, and implementation, using a holistic approach at all times, for the successful development and execution of strategy. Enterprise architecture applies architecture principles and practices to guide organizations through the business, information, process, and technology changes necessary to execute their strategies. These practices utilize the various aspects of an enterprise to identify, motivate, and achieve these changes."
  6. 6. 6  
  7. 7. o  A set of principals and practices for modeling enterprise business functions as services or micro services which has the following attributes. o  Standardized o  Loosely coupled o  Reusable o  Composable o  Autonomic o  Stateless o  Abstract o  Discoverable 7  
  8. 8. o  Agile, agile and agile o  Iterative design and implementation o  Shorter lifecycle and sprints o  Changing requirements o  Evolving NFRs o  Standards based o  RESTful methodologies (HATEOAS, ROA, Entity Linking) o  Binary, HL7, FIX, NMEA o  Heterogeneous systems o  Microservices and granular systems o  Integration and EDA o  Automation 8  
  9. 9. 9  
  10. 10. 10  
  11. 11. 11  
  12. 12. 12  
  13. 13. 13  
  14. 14. 14   Business   Architecture   • Requirements   Elicita>on   • NFR  and  FR   Solu>on   Architecture  L0   • High  level  technical   components   Solu>on   Architecture  L1   • Detailed  Technical   components   Applica>on   Architecture   • Design   • Data  Models   • Service  Catalog   • APIs   Run>me   Architecture   • Capacity   • Deployment   Architecture   • Security  Architecture   Iden>fica>on   Defini>on   Representa>on   Specifica>on   Configura>on   Instan>a>on   Zachman’s Model WSO2 Model
  15. 15. 15  
  16. 16. 16   Services Media>on   Transforma>on   Internal  API  Mgt   Async  Messaging   Security   Monitoring   Audit   External  API  Mgt.   Single  Page  JS   Mobile  Apps   Dashboard   External  App  Mgt.   Registry   Workflows   Analu>cs   Services
  17. 17. 17   Services Media>on   Transforma>on   Internal  API  Mgt   Async  Messaging   Security   Monitoring   Audit   External  API  Mgt.   Single  Page  JS   Mobile  Apps   Dashboard   External  App  Mgt.   Registry   Workflows   Analu>cs   Services
  18. 18. o  Many projects fail (CR, Resource overrun etc) o  Design for agility o  Iterative Architecture o  Partitioned Architecture 18  
  19. 19. 19   Services Services Legacy  Services   Core Services Wrapper   (Adaptor  Pa[ern)   Cloud Services Connectors   {Dead letter channel Guaranteed Delivery Store and Forward} Data Services Web Services {Content based router Scatter-gather Content enricher} {Transactional client}
  20. 20. 20   Services Services Legacy  Services   Core ServicesCloud Services Identity, Authentication, Entitlement, Enterprise Identity Bus LDAP   External  IS   Token  Valida>on   Mediation, Transformation MQ Identity Gateway, PEP
  21. 21. 21   Services Services Legacy  Services   Core ServicesCloud Services Mediation, Transformation MQ Identity Gateway, PEP Registry, Repository Identity Gateway, PEP
  22. 22. ROA Fundamentals o  Uses Representational State Transfer (REST) as the primary design pattern o  Data is independent of the server and the client - The server implementation can change over time and there can be many clients. o  Loose coupling is one of the objectives of the architecture o  “State” is treated as actions performed against the resource
  23. 23. 23   “The very notion of a link has become practically inexpressible and virtually unthinkable in the vernacular of SOA.” Sam Ruby
  24. 24. o  Listing a book in the library GET /book/9780345376596 HTTP/1.1 Host: library.org Accept: application/json .. HTTP/1.1 200 OK Content-Type: application/json Content-Length: … { "name": "the pale blue dot", "ISBN": "9780345376596", "author": "carl sagan", "borrow": "http://library.org/book/9780345376596/borrow" } GET /book/9780345376596 HTTP/1.1 Host: library.org Accept: application/json .. HTTP/1.1 200 OK Content-Type: application/json Content-Length: … { "name": "the pale blue dot", "ISBN": "9780345376596", "author": "carl sagan", "return": "http://library.org/book/9780345376596/return" } ➡  Listing a book after its been borrowed
  25. 25. 25   Services Services Legacy  Services   Core ServicesCloud Services Mediation, Transformation MQ Identity Gateway, PEP Registry, Repository Identity Gateway, PEP { RESTful APIs HATEOAS Entity Linking } Single  Page  JS   Mobile  Apps   Dashboard   API Token Management API StoreAPI Gateway
  26. 26. 26   Services Services Legacy  Services   Core ServicesCloud Services Mediation, Transformation MQ Identity Gateway, PEP Registry, Repository Identity Gateway, PEP { RESTful APIs HATEOAS Entity Linking } Single  Page  JS   Mobile  Apps   Dashboard   API Token Management API StoreAPI Gateway Batch Analytics Predictive Analytics Interactive Analytics
  27. 27. o  Event hierarchies and fine grained-ness o  Self describing nature of the event payload o  No special packing for each receiver o  Multiple receivers for a single event o  Responsibility of handling state is with the consumer o  Anonymity when sending an event o  Real time sending of events o  Async nature of delivery o  Guaranteed delivery
  28. 28. 28   Services Services Legacy  Services   Core ServicesCloud Services Mediation, Transformation MQ Identity Gateway, PEP Registry, Repository Identity Gateway, PEP { RESTful APIs HATEOAS Entity Linking } Single  Page  JS   Mobile  Apps   Dashboard   API Token Management API StoreAPI Gateway API Token Management
  29. 29. 29  
  30. 30. 30  
  31. 31. o  Patterns help build robust, proven architectures o  Whilst EA focuses on a higher level, patterns provide various levels of reusable best practices at various granularities o  WSO2 middleware provides the ideal base platform for various patterns and concepts o  An agile, partitioned, iterative architecture is ideal for building large scale systems 31  
  32. 32. Contact us !

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