Add documentation about Kanban

README.markdown

@@ -50,6 +50,8 @@ Documentation
 
 #### Introduction
 
+- [What is Kanban?](docs/what-is-kanban.markdown)
+- [Kanban vs Todo Lists and Scrum](docs/kanban-vs-todo-and-scrum.markdown)
 - [Usage examples](docs/usage-examples.markdown)
 
 #### Working with projects

docs/kanban-vs-todo-and-scrum.markdown

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+Kanban vs Todo lists and Scrum
+==============================
+
+Kanban vs Todo lists
+--------------------
+
+### Todo lists:
+
+- Single phase (just a list of items)
+- Multitasking possible (not efficient)
+
+### Kanban:
+
+- Multiple phases, each column represent a step
+- Bring focus and avoid multitasking because you can set a work in progress limit per column
+
+Kanban vs Scrum
+---------------
+
+### Scrum:
+
+- Sprints are time-boxed, usually 2 or 4 weeks
+- Do not allow changes during the iteration
+- Estimation is required
+- Uses velocity as default metric
+- Scrum board is cleared between each sprint
+- Scrum has predefined roles like scrum master, product owner and the team
+- A lot of meetings: planning, backlog grooming, daily stand-up, retrospective
+
+### Kanban:
+
+- Continuous flow
+- Changes can be made at anytime
+- Estimation is optional
+- Use lead and cycle time to measure performance
+- Kanban board is persistent
+- Kanban doesn't impose strict constraints or meetings, process is more flexible

docs/what-is-kanban.markdown

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+What is Kanban?
+===============
+
+Kanban is a methodology originally developed by Toyota to be more efficient.
+
+There is only two constraints imposed by Kanban:
+
+- Visualize your workflow
+- Limit your work in progress
+
+Visualize your workflow
+-----------------------
+
+- Your work is visualized on a board, you have a clear overview of your project
+- Each column represent a step in your workflow
+
+Bring focus and avoid multitasking
+----------------------------------
+
+- Each phase can have a work in progress limit
+- Limits are great to identify bottlenecks
+- Limits avoid working on too many tasks in the same time
+
+Measure performance and improvement
+-----------------------------------
+
+Kanban uses lead and cycle times to measure performance:
+
+- **Lead time**: Time between the task is created and completed
+- **Cycle time**: Time between the task is started and completed
+
+By example, you may have a lead time of 100 days and only have to work 1 hour to complete the task.