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Bài giảng Kiến trúc phần mềm - Tài liệu kiến trúc phần mềm

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Bài giảng Kiến trúc phần mềm - Tài liệu kiến trúc phần mềm trình bày về tài liệu kiến trúc; suy nghĩ cẩn thận về những gì để tài liệu; sơ đồ lớp; sơ đồ trình tự; mẫu tài liệu....

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Nội dung Text: Bài giảng Kiến trúc phần mềm - Tài liệu kiến trúc phần mềm

  1. Trường Đại học Khoa Học Tự Nhiên Khoa Công Nghệ Thông Tin Bộ môn Công Nghệ Phần Mềm CTT526 - Kiến trúc phần mềm Tài liệu kiến trúc phần mềm PGS.TS. Trần Minh Triết tmtriet@fit.hcmus.edu.vn Version 1.0 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  2.  Nội dung của bài giảng sử dụng: Session 6: Documenting a Software Architecture trong bộ slide Software Architecture Essential của GS. Ian Gorton Software Engineering Institute Carnegie Mellon University 2 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  3. Architecture Documentation  Architecture documentation is a thorny issue  Commonly there is no documentation covering the architecture.  If it is, it’s out-of-date, inappropriate and basically not very useful.  Also projects that have masses of architecture related information  Sometimes invaluable, but often it’s out-of-date, inappropriate and not very useful! 3 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  4. Documenting an Architecture is good!  Others can understand/evaluate the design.  We can understand the design after a period of time.  Others in the project team and development organization can learn from the architecture.  We can do analysis on the design, perhaps to assess its likely performance, or to generate standard metrics. 4 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  5. But it’s difficult …  No universally accepted architecture documentation standard.  An architecture can be complex, and documenting it in a comprehensible manner is time consuming and non-trivial.  An architecture has many possible views. Documenting all the potentially useful ones is time consuming and expensive.  An architecture design often evolves Keeping the architecture documents current is often forgotten, especially with time and schedule pressures in a project. 5 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  6. Think carefully about what to document  Project complexity  A small project may only need a ‘marketecture’  Project longevity  One-off stop gap software?  Strategic, long-term, will evolve?  Needs of stakeholders  Small team, a whiteboard might be ok  Large, dislocated team needs more  Integrators? Testers? Programmers?  Need to spend documentation dollars/euros wisely on high value products 6 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  7. UML 2.0  UML is a powerful way to document an architecture  Provides a relatively formal, unambiguous description  New features in UML 2.0 appropriate for architectures  Good tools available, some free  Can be used to depict various structural/behavioral architecture views 7 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  8. Component Diagram id Component View OrderProcessing read writeQ «table» MailQueue NewOrders 1 1 1 readQ 1 1 1 validate writeQ 1 1 SendEmail CustomerSystem OrderQueue 1 send readQ 1 MailServer OrderSystem 8 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  9. Class Diagram cd OrderProcessing OrderReader QueueWriter 1 1 1 1 1 1 Validate Store 9 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  10. Sequence Diagram sd Interactions OrderReader Validate Store QueueWriter NewOrders CustomerSystem OrderQueue MailQueue readOrderData success:= validateOrder success:= newOrder success:= storeOrder success:= writeQueue success:= acknowledgeOrderSuccess success:= writeQueue 10 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  11. Deployment Diagram 11 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  12. Component Interfaces id Component View OrderProcessing JDBC QueueWrite «table» MailQueue NewOrders QueueRead QueueWrite SendEmail OrderQueue CustomerServices SMTP QueueRead MailServer CustomerSystem OrderSystem 12 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  13. Component Decomposition id Component View cd Component View JDBC OrderProcessing QueueWrite «table» MailQueue OrderProcessing NewOrders getOrders writeConfirmation validateOrder writeOrder «delegate» or: OrderReader qw: QueueRead QueueWriter «delegate» getOrders QueueWrite SendEmail writeConfirmation OrderQueue val: Validate st: Store CustomerServices SMTP QueueRead «delegate» «delegate» MailServer validate validateOrder writeOrder CustomerSystem OrderSystem ProvidedInterface1 13 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  14. Document Template  Documentation is easier if there’s a template to use  Reduces start-up time for projects by providing ready-made document structures  familiarity gained with the document structure aids in the efficient capture of project design details.  help with the training of new staff 14 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  15. Template Headings Architecture Documentation Template Project Name: XXX 1 Project Context 2 Architecture Requirements 2.1 Overview of Key Objectives 2.2 Architecture Use Cases 2.3 Stakeholder Architectural Requirements 2.4 Constraints 2.5 Non-functional Requirements 2.6 Risks 3 Solution 3.1 Relevant Architectural Patterns 3.2 Architecture Overview 3.3 Structural Views 3.4 Behavioral Views 3.5 Implementation Issues 4 Architecture Analysis 4.1 Scenario analysis 4.2 Risks 15 CuuDuongThanCong.com https://fb.com/tailieudientucntt
  16. Summary  Some documentation is nearly always a good idea  Trick is to produce ‘just enough’ and no more  requires upfront planning and thinking  Commitment to keeps docs current  UML 2.0 makes architecture documentation easier  Some good UML 2.0 tools, try ‘em out. 16 CuuDuongThanCong.com https://fb.com/tailieudientucntt
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