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Vertical Slicing

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An easy to understand representation of vertical slicing. This slide deck was customized for the ATG framework.

An easy to understand representation of vertical slicing. This slide deck was customized for the ATG framework.

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Vertical Slicing Vertical Slicing Presentation Transcript

  • practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay Created: March 12, 2011 Updated: May 31, 2013 Vertical Slicing AGENDA ITEMS Vertical Slicing By Ben Clay Copyright 2013 All Rights Reserved by Ben Clay
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay 2 Vertical Slicing • Increased productivity • Improved quality • Less complex • Testable • Vertically sliced module reuse (pluggable code reuse) • Greater business value • Sooner ROI • Stub dependent data if not available • Decreased time to market Vertically Sliced Products • Electronics (Computer Parts) • Car Parts • Modular Homes • More Breaking a complex problem into smaller more manageable vertical slices
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay 3 The layers of Vertical Slicing UX/UI Service Data Additional Top Layer Additional Middle Layer Additional Bottom Layer Login Slice View slide
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay 4 Vertical User Stories LOGIN Email Password remember me Forgot Password As an end user I must be able to login to my company portal so that I can perform the functions of my job. Acceptance Criteria • Verify that I can log into the system • Verify that my login credentials will be remembered • Verify that I can reset my own password by clicking the "Forgot Password" link • Verify that I cannot navigate back to the landing page without first logging in View slide
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay 5 The Layers of Login As a developer I must think about every layer I will need to touch in order to vertically develop this user story. NOTE: At this point, if you as a developer need to list out all the functions, then do so. It will only help. This way you can see what you need to create and use it as a checklist ensuring you don’t forget anything. UX/UI Service Data Vertical
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay As a developer, you will need to think about every file encapsulated in each layer that needs to be created and/or extended in order to complete this “Login User” Story. 6 Dissected by Layer bootstrap class session class UX/UI Service Data index.jsp CSS constance class / config file user bean database class / ORM database function class template class login service login.jsp landing.jsp JavaScript
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay No index.jsp 7 Horizontal Flow Chart of Pluggable Vertical Slices Registration bootstrap session control No Yes JavaScript Register.jsp HTML5 DB No Yes JavaScript Login.jsp HTML5 DBYes Do Nothing No Yes JavaScript Landing Page HTML5 Yes No Landing Page Login UX/UI SERVICE DATA Registered? Register Successful? Already Logged in? Login Successful?Logout? Vertical Slice Vertical Slice
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay 8 Questions?
  • Copyright 2013 All Rights Reserved by Ben Clay practicalA g i l e S o l u t i o n s T h a t W o r k Ben Clay 9 Take Notes: