Colombo Architecture Meetup - Enterprise Integration Architectural Challenges in Large Enterprise
- 1. Colombo Architecture Meetup Enterprise Integration Architectural Challenges in Large Enterprises By Crishantha Nanayakkara Head of Technology, ICTA
- 2. Vs
- 4. 4 The Information Silos Systems that are not connected Drawbacks: ● Isolated without insufficient communication to the rest of the world
- 5. 5 The Enterprise Integration Benefits: ● Provides a way to connect each other Drawbacks: ● Extremely “Spaghetti” like architecture, create headaches
- 8. 8 ● Integration ● Reliability ● Mediation ● Service Orientation ● Interoperability ● Security ● Federated Identity
- 11. 11 Point-to-Point Integration Specifically, linking every component to every other component will require N(N-1)/2 physical connections N = Total Number of Components in the Network e.g: If there are 10 components in the network, Total number of physical connections = 10 (10-1)/2 = 45
- 12. 12 Point-to-Point Integration ● The value of the network increases linearly over time while its costs increase exponentially
- 13. 13 The Solution A more centralized approached to the previous point-to-point approach The Solution
- 15. 15 ● This creates a loosely-coupled distributed system, which can continue to function reliably, without downtime, even when individual components or connections fail Message Oriented Middleware
- 16. 16 ● Supports Remote Communications ● Integrating different language/platforms as a Message Bus (Message Bus Pattern) ● Supports Asynchronous Communication ● Supports Throttling ● More reliable ● Can be used for disconnected operations ● Supports mediation Message Oriented Middleware
- 18. 18
- 20. 20 Enterprise Integration Patterns Message Router Pipes and Filters
- 21. 21 Enterprise Integration Patterns Content Based Router Message Translator
- 22. 22 Enterprise Integration Patterns Message Filter Message Splitter
- 23. 23 Enterprise Integration Patterns Message Aggregator Message Resequencer
- 27. 27 The SOA Environment Source: Open Source SOA
- 28. 28 A typical SOA environment ● Service Interfaces/ Contracts ● Service Transparency ● Service Composition ● Service Registry or Publication ● Service Governance
- 29. 29 The Core Characteristics of SOA 1) The Service Interface / Contract
- 30. 30 The Core Characteristics of SOA 2) The Service Transparency What if you change the IP of this address???
- 31. 31 The Core Characteristics of SOA 2) The Service Transparency
- 32. 32 The Core Characteristics of SOA 3) Service Composition – There are two general types of composite services ● Simple ● Complex – Simple: Simply wraps one or more lowerlevel services together into a more coarsegrained operation – Complex: (Work Flow Type BPM) ● WSBPEL ● Entry Point of invoking WSBPEL is usally a web service
- 33. 33 The Core Characteristics of SOA 3) Service Composition
- 34. 34 The Technologies of SOA
- 35. 35 Bottom Up Vs Contract First ● Why Contract First is better?
- 37. 37 Private Sector Companies Services Application Services Application The Department of Motor Traffic Vehicle Domain Services Application The Department Registration of Persons Personal Domain Services Application The Land Ministry Land Domain
- 38. 38 DMTDMT Translation in the Middleware Translation in the Middleware WPDMTWPDMT Owner First Name Owner Last Name Owner Address Line1 Owner Address Line2 Owner City Vehicle Reg No Fuel Type Weight Number of Seats Owner First Name Owner Last Name Owner Address Line1 Owner Address Line2 Owner City Vehicle Reg No Fuel Type Weight Number of Seats Owner Full Name Owner Address Vehicle Reg No Fuel Type Weight Number of Seats Owner Full Name Owner Address Vehicle Reg No Fuel Type Weight Number of Seats
- 39. 39 The Need ● So many distributed & diverse systems, – May have used various technologies – May have used various data architectures – May have used conflicting policies, procedures, guidelines
- 40. 40 The Solution ● Standardize data representation, formats and semantics on the wire by having an Interoperability Framework ● Use Open Standards Services Oriented Architecture & Web Services
- 42. 42 Enterprise Architecture ● Enterprise Architecture is the complete expression of the enterprise ● “Enterprise Architecture is about understanding all of the different elements that go to make up the enterprise and how those elements interrelate.” - The Open Group
- 45. 45 Transport Vs Message Level Security
- 46. 46 Point to Point Security ESB as a Security Gateway
- 47. 47 End to End Security with Pass Through
- 48. 48 End to End Security with Security Translantion at ESB Level
- 49. 49 Web Services Security Stack Reference: Securing Web Services with WS-Security (Jothy Rsenberg, David L Remy)
- 50. 50 8. Federated Identity8. Federated Identity
- 51. 51 ● SAML provides a loosely coupled identity management with the help of WS-Trust and WS- Fedeartion specifications.
- 52. 52