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Keeping the Beat: Rhythm and Trust in
Architecture
David Kane – [email protected] 2015April 29th, 2015
Definition
Rhythm is the recurring, predictable exchange of work products within an architecture group and across their customers and suppliers.
Tempo Content Quality
Software Architecture: Organizational Principles and Patterns – Dikel, Kane and Wilson
More than one beat
Con
tent
Time
Major Release Rhythm
Milestone Rhythm
Weekly Rhythm
Software Architecture: Organizational Principles and Patterns – Dikel, Kane and Wilson
Can Fail with Too Little or Inconsistent Tempo, Content or Quality
Con
tent
Time
Con
tent
Time
Con
tent
Time
Abbreviated Processes
Software Architecture: Organizational Principles and Patterns – Dikel, Kane and Wilson
Rhythm and Architecture is Not New
Why is Rhythm Valuable?Aids transition management
Why is Rhythm Valuable?Drives closure
Why is Rhythm Valuable?Every commitment met builds trust
Avoid Commitments Based on Means
21 Points
19 Points
The Power of Commitments (AgileDC 2014) – Nielsen
If you have to miss on something, miss on content
Why is Rhythm Valuable?Drives small batch size
VariationsRhythm Without Timeboxes
Resource Optimized
Flow Optimized
Balance Flow and Resource Optimization
Res
ourc
e E
ffici
ency
Flow Efficiency
Impossible
Balance resource and flow efficiency
This is Lean: Resolving the Efficiency Paradox Paperback – Modig and Ahlstrom
Predictability Without Timeboxes
Cou
nt
Cycle Time
Mean
Median
90%
Break Time
