• Share
  • Email
  • Embed
  • Like
  • Save
  • Private Content
Enterprise Soa Concept

Enterprise Soa Concept



Simple concept of SOA

Simple concept of SOA



Total Views
Views on SlideShare
Embed Views



2 Embeds 20

http://www.slideshare.net 19
http://translate.googleusercontent.com 1



Upload Details

Uploaded via as Microsoft PowerPoint

Usage Rights

© All Rights Reserved

Report content

Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

  • Full Name Full Name Comment goes here.
    Are you sure you want to
    Your message goes here
Post Comment
Edit your comment

    Enterprise Soa Concept Enterprise Soa Concept Presentation Transcript

    • Chapter 4. Service Oriented Architecture “ Enterprise SOA Service Oriented Architecture Best Practice” 2006-05-17 Byungwook Cho K.
    • What is software architecture?
      • “ An architecture is the set of significant decisions about organization of a software system” – Booch, Rumbaugh, Jacobson
      • “ The software architecture of program or computing system is the structure or structure of system, which comprise software elements, the externally visible properties of those elements, and relationships among them” – Brass, Clements, and Kazman
    • What is SOA?
      • "A SOA is software architecture that is based on the key concepts of application frontend,service,service repository, and service bus. A service consists of contract (WSDL), interface and implementation "
    • Elements of SOA
      • SOA is based on four key abstraction
        • Application frontend
        • Service
        • Service Repository
        • Service Bus
    • Life cycle of elements in SOA
      • The estimated lifecycles of data,services, application frontends , and technologies are different
    • Application front end
      • Application frontend is
        • Active player of an SOA
        • Service consumer
        • Initiate and control all activity of enterprise system
    • Service
      • Service is component of distinctive functional meaning that typically encapsulate a high-level business concept
      • Consists of
        • Contract
          • purpose, functionality, constraint, usage of service
        • Interface
          • Physical implementation of interface
        • Implementation
          • programs, configuration data ,database
          • Business logic , Data
      NOTE : The types of service [ from Service Oriented Architecture - Thomas Erl] Business Service vs Technical Service (utility Service, application service) Process service, Task centric service, Entity centric business service, utility application service. Hybrid application service.
    • Service
      • Conceptual structure of service
      NOTE: Every service is an entity of distinctive functional meaning that typically encapsulates a high-level business entity. Services impose a strong vertical slicing of application that defines the coarse-grained structure of the whole system.
    • Service repository
      • Service repository is “provides facilities to discover services and acquire all information to user the service “
      • Service repository is indispensable in long term
      • It contains
        • In addition to service contract : location,provider,contact ,usage fee,technical constraints,security issues and availble service level
        • SVC Info,ACL,SLA,Transactional properties of SVC & operation (CRUD)
        • In cross enterprise : security,user registration, service subscription,billing and versioning
    • Service repository
      • Binding Type
        • Development time binding
        • Runtime binding
          • By name
          • By properties
          • By reflection  method 를 가지고 오지만 , function 에 call 방식을 미리 알 수 없다 . Meta data 로 call 에 필요한 argument 들을 가지고 오고 , 거기에 argument 에 필요한 내용을 mapping 한다 .
          • * It can be replaced by ESB routing feature
    • Service bus
      • A service bus connects all participants of an SOA services and application frontend
      • Characteristics of service bus
        • Connectivity
        • Heterogeneity of technology
        • Heterogeneity of communication concept (MEP)
        • Technical service : logging,auditing,security,transformation,transaction