projects in which the deadline is the most critical aspect and when not all requirements are completely specified up front. This also allows for new feedback or insights discovered during the project to be reflected in the end result. In personal time management Timeboxing can be used for personal tasks, in which case it uses a reduced scale of time (e.g., thirty minutes) and of deliverables (e.g., a household chore instead of project deliverable), and is often called timeblocking. Personal timeboxing is also said to act as a life hack to help curb perfectionist tendencies (by setting a firm time and not overcommitting to a task) which can also enhance creativity and focus (by creating a sense of urgency or increased pressure). Relationship with other methods Timeboxing acts as a building block in other personal time management methods: The Pomodoro Technique is based on 25 minute timeboxes of focused concentration separated by breaks allowing the mind to recover. Andy Hunt gives timeboxing as his 'T' in SMART. See also Design sprint, a time-constrained five-phase process used in design thinking References Time management Dynamic systems development method Software project management Agile software development Lean manufacturing