Dylan Beattie "Architecture: The Stuff That's Hard to Change"
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Dylan Beattie has been officially promoted to the role of systems architect, with immediate effect, where he will oversee various responsibilities related to architecture. The document outlines the key aspects of software architecture, including understanding user needs, making informed decisions, and communicating within development teams. Additionally, it highlights the importance of validating and verifying project outputs in the software development process.
![Manifesto for Agile Software Development
We are uncovering better ways of developing
software by doing it and helping others do it.
Through this work we have come to value:
[…]
Responding to change over following a plan
That is, while there is value in the items on
the right, we value the items on the left more.](https://image.slidesharecdn.com/architecture-200428103551/85/Dylan-Beattie-Architecture-The-Stuff-That-s-Hard-to-Change-28-320.jpg)
![Principles behind the Agile Manifesto
We follow these principles:
[...]
The best architectures, requirements, and designs
emerge from self-organizing teams.](https://image.slidesharecdn.com/architecture-200428103551/85/Dylan-Beattie-Architecture-The-Stuff-That-s-Hard-to-Change-29-320.jpg)
![[Slide: the iPhone 1]](https://image.slidesharecdn.com/architecture-200428103551/85/Dylan-Beattie-Architecture-The-Stuff-That-s-Hard-to-Change-31-320.jpg)
![[restroom, pissoir]](https://image.slidesharecdn.com/architecture-200428103551/85/Dylan-Beattie-Architecture-The-Stuff-That-s-Hard-to-Change-85-320.jpg)
Dylan Beattie "Architecture: The Stuff That's Hard to Change"
- 3. From: The Boss To: Dylan Subject: Change of job role Dear Dylan, This is to confirm your change of job role to Systems Architect, effective immediately. You are now responsible for architecture, architecting, doing architect stuff, systems architecture, and architecting systems. Congratulations on your new role! Kind regards, Your Boss Change of Job Role
- 11. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- “Computer architecture, like other architecture, is the art of determining the needs of the user of a structure and then designing to meet those needs as effectively as possible within economic and technological constraints.” - Fred Brooks: "Planning a Computer System: Project Stretch”, 1962.
- 15. “The stuff that’s hard to change”
- 17. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- “Computer architecture, like other architecture, is the art of determining the needs of the user of a structure and then designing to meet those needs as effectively as possible within economic and technological constraints.” - Fred Brooks: "Planning a Computer System: Project Stretch”, 1962.
- 18. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- “Computer architecture, like other architecture, is the art of determining the needs of the user of a structure and then designing to meet those needs as effectively as possible within economic and technological constraints.” - Fred Brooks: "Planning a Computer System: Project Stretch”, 1962.
- 19. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- “Computer architecture, like other architecture, is the art of determining the needs of the user of a structure and then designing to meet those needs as effectively as possible within economic and technological constraints.” - Fred Brooks: "Planning a Computer System: Project Stretch”, 1962.
- 20. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- “Computer architecture, like other architecture, is the art of determining the needs of the user of a structure and then designing to meet those needs as effectively as possible within economic and technological constraints.” - Fred Brooks: "Planning a Computer System: Project Stretch”, 1962.
- 21. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- “Computer architecture, like other architecture, is the art of determining the needs of the user of a structure and then designing to meet those needs as effectively as possible within economic and technological constraints.” - Fred Brooks: "Planning a Computer System: Project Stretch”, 1962.
- 22. ? ? ?
- 27. Rene Descartes
- 28. Manifesto for Agile Software Development We are uncovering better ways of developing software by doing it and helping others do it. Through this work we have come to value: […] Responding to change over following a plan That is, while there is value in the items on the right, we value the items on the left more.
- 29. Principles behind the Agile Manifesto We follow these principles: [...] The best architectures, requirements, and designs emerge from self-organizing teams.
- 31. [Slide: the iPhone 1]
- 32. NewShiny.js!
- 33. https://www.dailytarheel.com/article/2016/03/founding-uncs-computer-science-department-was-an-experiment-but-it-paid-off-for-fred- ARCHITECTURE: 1. determine user needs 2. meet those needs 3. within economic and technological constraints.”
- 35. Make Decisions Communicate Decisions Reinforce Decisions
- 36. HOW TO MAKE DECISIONS https://www.flickr.com/photos/leviathana/88146176
- 37. 1. What Have You Got? Understand your Existing Technology
- 38. Vasyatka1 / CC BY-SA 4.0 / https://commons.wikimedia.org/wiki/File:Munich_Airport_T1_L4_passport_controls.jpg
- 40. “I don’t care about what anything was DESIGNED to do – I care about what it CAN do.” Gene Kranz, NASA Mission Director, Apollo 13
- 42. 2. What Do You Need? Asking the Right Questions
- 45. 3. What Can You Build? Understand your Capabilities
- 46. davetoaster / CC BY 2.0 / https://www.flickr.com/photos/dfoster/3722602616/
- 51. 4. What Can You Buy? Look for platform-as-a-service and software-as-a-service solutions
- 52. If you can't sell it – buy it. Never use Powershell when you could use Mastercard.
- 53. 5. What Can You Lose? Look for Redundancies and Duplication
- 55. DECIDE WHAT TO DO (The easy part)
- 61. 17:21:00
- 66. Mercutio Norman Mandrill Excelsior JK6GB87M$ Key to Yourdon/DeMarco notation Database or Filesystem Function Data Flow Input / Output
- 67. “Mercutio” (.NET service that populates email templates) “Norman” (.NET app that sends emails) “Mandrill” (Mailchimp SMTP relay service) “Excelsior” (SQL Server database of customer details) JK6GB87M$ (Windows file share with Marketing email templates) Key to Yourdon/DeMarco notation Database or Filesystem Function Data Flow Input / Output
- 68. Key to Yourdon/DeMarco notation Database or Filesystem Function Data Flow Input / Output
- 69. “Mandrill” (Mailchimp SMTP relay service) “Excelsior” (SQL Server database of customer details) “Mercutio” (.NET service that populates email templates) “Norman” (.NET app that sends emails) JK6GB87M$ (Windows file share with Marketing email templates)
- 70. “Mandrill” (Mailchimp SMTP relay service) “Excelsior” (SQL Server database of customer details) “Mercutio” (.NET service that populates email templates) “Norman” (.NET app that sends emails) JK6GB87M$ (Windows file share with Marketing email templates)
- 71. “Mandrill” (Mailchimp SMTP relay service) “Excelsior” (SQL Server database of customer details) “Mercutio” (.NET service that populates email templates) “Norman” (.NET app that sends emails) JK6GB87M$ (Windows file share with Marketing email templates)
- 72. “Mandrill” (Mailchimp SMTP relay service) “Excelsior” (SQL Server database of customer details) “Mercutio” (.NET service that populates email templates) “Norman” (.NET app that sends emails) JK6GB87M$ (Windows file share with Marketing email templates) Key SQL Database Windows Service SMTP email relay ADO.NET records Network fileshare SMB File share RabbitMQ SMTP
- 73. “Mandrill” (Mailchimp SMTP relay service) “Excelsior” (SQL Server database of customer details) Key SQL Database Windows Service SMTP email relay ADO.NET records “Mercutio” (.NET service that populates email templates) “Norman” (.NET app that sends emails) JK6GB87M$ (Windows file share with Marketing email templates) Network fileshare SMB File share RabbitMQ SMTP .txt & .html files. (Windows authentication required.) ADO.NET Windows authentication via Mercutio service account RabbitMQ (SAAS hosted on CloudAMQP) SMTP Port 993 TLS enabled
- 78. Mercutio (Core Logic) EntityFramework Data Adapter “Excelsior” (Customer Database) ICustomerDataPort ITemplatePort FileSystem Template Adapter Windows File Share IMailSender RabbitMQ Mail Adapter (implementation) Mercutio Entity Framework Data Provider “Excelsior” (Customer Database) Windows File Share RabbitMQ Mandrill (SMTP relay component)
- 80. VALIDATION (are we building the right thing?) VERIFICATION (are we building the thing right?)
- 89. I’VE REVIEWED YOUR C# CODE AND I STILL DON’T KNOW WHAT IT DOES. Dude. My team switched to Haskell. …two years ago.
- 90. public class CustomerRepo { public CustomerRepo(IdentityMap<Customer> map) { this.map = map; } public Customer GetCustomer(int customerId) { return map.FindById(customerId); } }
- 95. API SERVER API CLIENT {fake JSON} {spec tests}
- 96. API SERVER API CLIENT {fake JSON} {spec tests}