InfoQ Homepage Lean Content on InfoQ
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Impediments To Your Value-Stream
Scrum defines an impediment as "anything keeping the team from being more productive" and clearly stresses that teams establish means to remove them as continuously as possible. Joe Little proposes an impediment's scope may be better established as being anything keeping the organization from delivering value.
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Lessons for the Agile Community from 8aweek
InfoQ recently had the opportunity to ask 8aweek co-founders Dave Fowler and Zachary Garbow some questions about how they connect with users, prioritize work, and get things done.
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Overburdened Teams are Less Likely to Root Out Waste
Sometimes, management encourages adoption of Agile but fails to help remove the overburden that cripples teams and keeps them in non-productive patterns. In his article, Roman Pichler looks at the "3 M's" of Lean, and how the concept of removing "muri" (overburden) provides help for Agile adoptions, by encouraging teams to give up wishful thinking and commit to their actual capacity.
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Are Iterations/Sprints Waste or Value to Agile Teams?
Although many people consider iteration to be a key characteristic of agile software development, some question whether or not they're important, and add value to an agile method, or if they're superfluous, or even wasteful. InfoQ has assembled a roundup of arguments on the subject, to help agile teams decide if iterations are important for them.
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Agile Kanban: Visual Tracking Beyond the Team Room
In the beginning Agile was largely a developer-driven initiative, sometimes improving development processes only to find the real bottlenecks lay outside developer control. In his latest InfoQ article, Kenji Hiranabe analyses Lean manufacturing's "Kanban" visual tracking tool, how it differs from the Agile taskboard, and how it helps identify more far-reaching improvements.
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Opinion: Refactoring is a Necessary Waste
Refactoring is one of the key technical practices in the Agile developer's toolkit. Refactoring also has no measurable customer value by its very definition - it involves changing the structure (design) while maintaining the behavior. In the Lean world - anything that does not have customer value is waste, and a customer only perceives behavior/functionality and not structure.
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Leadership is not Obsolete for Self-Organizing Teams!
In this talk, software thought leader Mary Poppendieck reviewed 20th century management theories, including Toyota and Deming, and went on to talk about "the matrix problem", alignment, waste cutting, planning, standards and other topics including the role of measurement: "cash flow thinking" over "balance sheet thinking". InfoQ presents video of this popular talk from the Agile2007 conference.
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Without a Defined Process, How Will We Know Who To Blame?
"A fundamental premise of the 'train-wreck' approach to management is that the primary cause of problems is 'dereliction of duty'" said Peter Scholtes in his 2003 book on leadership. Mary Poppendieck's recent article on process, people and systems asked: "Which is more important - process or people?" and showed how Lean is an alternative to certified process improvement programs like ISO 9000.
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InfoQ Article: Lean Kanban Boards for Agile Tracking
"Big Visible Charts" aren't unique to Agile - Lean manufacturing also has its Kanban Boards. "Kanban" roughly means "card or sign," and each Kanban card is "pulled" onto the board only when the work represented by an "in progress" card is retired. In this InfoQ article, Kenji Hiranabe proposes using Kanban Boards to track Agile project status (Time, Task, and Team) to enhance collaboration.
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Kaizen in Lean Software Development
Lean methods employ Kaizen, or continuous improvement, to reduce waste and improve results on a regular, even daily, basis. On the leanagilescrum group, Alan asked, "Are there known techniques for facilitating kaizen activities within Lean/Agile software development?"
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InfoQ Presentation: DSDM and Lean Explained
This second Agile2006 Agile Styles video looks at DSDM and Lean. Jean Tabaka covered the history and principles of the venerable DSDM methodology, founded in 1994 and now accepted in the UK for use on government contracts. Mary Poppendieck gave real examples of how the 7 Lean principles provide competitive advantage, and discussed the relationship between quality, speedy delivery and low cost.
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Agile Measurement - A Missing Practice?
Tom Gilb and Lindsey Brodie have written an article that suggests that Agile methods have a major weakness - that of lack of quantification. They argue that all qualities can be expressed quantitatively and present a new process, PLanguage, which looks very much like Scrum with an explicit measurement step. Are they right? Are Agile methods such as Scrum and XP in need of explicit measurement?
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Does Cost Accounting Cause Crappy Code?
Cost accounting , the standard accounting approach to analyzing the monetary value of a project, treats all parts of a project independently and encourages local optimization. Local optimization of costs means that you focus on task completion time. A focus on minimizing task completion time means that you don't have time for refactoring and other niceties - they are too expensive.
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What can Math and Psychology teach us about Agile?
With Agile, we avoid early commitments to gain flexibility later. APLN members Chris Matts and Olav Maassen have noted a connection here with the math behind financial options. Their article introduces "Real Options," applying both psychology and financial math to our thinking about Agile practices. They propose it will help us refine our agile practices and take agile in new directions.
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Incremental Software Development without Iterations
David Anderson described how his team is using a kanban system for their sustaining engineering (maintenance and bug fixing) activities. Iterations have been dropped although software is still released every two weeks. Work is scheduled, monitored, and run via a "kanban board" and daily stand-up meetings.