Here waste is everything that adds no value to a consumer. In particular: excessive functionality; waiting (pause) in the development process; fuzzy requirements; bureaucratization; slow internal communication.
Short development cycles, early testing, frequent customer feedback.
The decision should be made not on the basis of assumptions and forecasts, but after the discovery of essential facts.
The faster delivery is the faster a client can assess the created value and ask for some changes (if needed). The Lean philosophy followers prefer to do smaller batches of work since it doesn’t involve that many people and can be done quicker.
You can not consider people solely as a resource. People need more than a list of tasks.
Send complete information to the customer. Strive for holistic architecture.
The most important thing in the Lean approach - to see how parts work as the whole and that all the team members are responsible for the project’s issues. Thus getting rid of a bug caused by a particular person not necessarily will keep the system healthy.
Design your structure so that the depth of your site does not exceed three or four clicks. This ensures easy user navigation, providing a clear and understandable navigation from any entry point without problems.
As a rule, the hierarchy of a ‘Visual Sitemap’ is as follows: links from all pages of the site lead to the "Main Page", links of ‘Subsections’ lead to ‘Sections’, and links of the website pages lead to ‘Subsections’. When forming the website structure, it is important to keep in mind that the page hierarchy is determined by the ‘weight’ (or ‘importance’) of the links.