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打造真正的软件
The document discusses making software soft by refactoring it to better cope with changes. It advocates discovering the underlying "Tao" or domain model of the system through refactoring. The key is refactoring the software to reveal the natural relationships and interactions within the domain. This makes the software structure flexible and open to changes by decomposing it into loosely coupled components aligned with the domain. The heart of making software soft is finding its inherent design through refactoring, which allows the software to naturally follow and adapt to changes over time.
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打造真正的软件
- 1. Make Software Soft --Learn from A Refactoring Case 赵喜鸿
- 2. Who am I? FromAlcatel-Lucent Software developer A fervent advocate of Agile methodologies 11 years' experience in software development and team management Now, refactoring a legacy telecom equipment system.
- 3. Why call it“Software”?
- 4. Soft • yielding readilyto touch or pressure; easily penetrated, divided, or changed in shape; not hard or stiff • Easily molded, cut, or worked. • Easy to influence or impose upon Easy to change
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- 15. Design Reality
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- 20. Run On NTBoard On LT Board Is it soft?
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- 22. Update op state Save to database Configuration Config to hardware Changed
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- 24. Listener “state” Listener “persist” Configuration Listener Listener “HWW” “HWW” New Listener
- 26. PonData Data- State Config Fault PM HWW Base
- 27. PonData Data- State Config Fault PM HWW Base NtPonLine LtPonLine
- 28. xxxData Data- State Config Fault PM HWW Base xxxLine Config State xxxData Data- Fault Base
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- 30. New Line Object Fault State xxxData PM Config Data- Base
- 31. New Line Object Fault State xxxData PM Config Data- Base Open to change?
- 35. config a line Context Retrieve PM PM Config Line Object Role
- 36. Fault Handling Context Retrieve PM Context Retrieve State Context RetrieveLine Context ConfigLine Context
- 37. DCI Architecture Data What the system is Context The Context is the class (or its instance) whose code includes the roles for a given algorithm, scenario, or use case, as well as the code to map these roles into objects at run time and to enact the use case. Interaction The Interaction is "what the system does." The Interaction is implemented as Roles which are played by objects at run time http://www.artima.com/articles/dci_vision.html
- 40. EponMgr Pon Ont Llid Uni Is It Soft? Service
- 41. What is theessence of the problem?
- 42. EponMgr Managed Object Pon Ont Llid Uni Service Relation
- 43. ManagedObject ManagedObject Relation
- 46. Box Board Line Service
- 47. Domain Model Box Board Line Service ManagedObject ManagedObject
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- 49. What Missed Domain Model Soft Bricks Software Refactoring Framework
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- 52. The only thingconstant is change
- 53. Cope with Changesby making software soft
- 54. Heart of makingsoftware soft is Discovering the “Tao”
- 55. The way todiscover “Tao” is refactoring
- 56. “Tao” is theheart of making software SOFT People are the brain to find the heart
- 57. Thank You Contact: xihong.zhao@gmail.com Weibo: http://weibo.com/zhaoxihong
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