Xkanban: XP, Kanban and timeboxing

#phpday XKanban XP, Kanban e timeboxingvenerdì 13 maggio 2011

Who am I ?#phpday Web developer @ideato 3 years of “serious” php ( +2 of playing around)venerdì 13 maggio 2011

XP Values Communication#phpday Respect Simplicity Courage Feedback http://www.extremeprogramming.org/venerdì 13 maggio 2011

XP Principles Humanity Accepted responsibility Economics Baby steps Mutual beneﬁt#phpday Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self similarity Improvement http://www.extremeprogramming.org/ http://martinfowler.com/bliki/PrinciplesOfXP.htmlvenerdì 13 maggio 2011

XP Principles#phpday Baby steps Humanity Accepted responsibility Economics Mutual beneﬁt What people need to be good developers? Quality Flow Failure Opportunity Safety, Accomplishment, Belonging, Growth, Understand and be understood Reﬂection Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles#phpday Economics Accepted responsibility Baby steps Humanity Mutual beneﬁt Quality your work produce value? Does Flow (for you and your customer) Failure Opportunity Reﬂection Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Mutual benefit Humanity Accepted responsibility Economics Baby steps#phpday Every Quality should benefit all people involved activity Flow Failure Opportunity Reflection Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Flow Humanity Accepted responsibility Economics Baby steps#phpday Mutual benefit Quality Delivering a steady flow of valuable software Failure Opportunity Biased towards a continuous flow of activities Reflection Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles#phpday Opportunity Accepted responsibility Baby steps Humanity Economics Mutual beneﬁt QualityLearn to see problems asFlow Failureopportunities for change Reﬂection Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Redundancy Humanity Accepted responsibility Economics Baby steps#phpday Mutual beneﬁt Quality Flow The critical problems should be Failure Opportunity solved in several different ways Reﬂection Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Humanity Self similarity Accepted responsibility Economics Baby steps#phpday Mutual beneﬁt Quality Flow a new Copy the structure of one solution into Failure context, even at different scales Opportunity Reﬂection Redundancy Diversity Improvementvenerdì 13 maggio 2011

XP Principles Humanity Improvement Accepted responsibility Economics Baby steps#phpday Mutual benefit Quality Flow Get an activity started right away but refine Failure Opportunity the results over time Reflection Redundancy Diversity Self similarityvenerdì 13 maggio 2011

XP Principles Diversity Humanity Accepted responsibility Economics Baby steps#phpday Mutual beneﬁt Quality Flow Variety of skills, attitudes, and perspectives to Failure Opportunity see problems and pitfalls, to think of multiple Reﬂection Redundancy ways to solve problems Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Reﬂection Humanity Accepted responsibility Economics Baby steps#phpday Mutual beneﬁt Quality Flow Think about how and why you are working Failure Opportunity Analyze why you succeed or fail Redundancy No Diversity one stumbles into excellence Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Failure Humanity Accepted responsibility Economics Baby steps#phpday Mutual beneﬁt Quality Flow If youre having trouble succeeding, fail Opportunity “Dont know which of three ways to implement a story? Try it all three ways. Even if they all fail, youll learn something valuable” Reﬂection Kent Back Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Quality Humanity Accepted responsibility Economics Baby steps#phpday Mutual beneﬁt Flow Pushing quality higher Opportunity Failure results in faster delivery often Reﬂection Redundancy A concern for quality is no excuse for inaction Diversity Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Humanity Baby steps Accepted responsibility#phpday Economics Mutual beneﬁt Quality Flow "Whats the least you could do that is Failure Opportunity recognizably in the right direction?" Reﬂection Redundancy Diversity Kent Back Self similarity Improvementvenerdì 13 maggio 2011

XP Principles Humanity#phpday Accepted responsibility Baby steps Economics Mutual beneﬁt Quality Flow Responsibility cannot be assigned; Failure it can only be accepted Opportunity With responsibility comes authority Reﬂection Redundancy Diversity Self similarity Improvementvenerdì 13 maggio 2011

Where were we? 2 Main Stream Projects Customers#phpday Requests 2 Developers user stories emergencies tasks + bugs http://www.ﬂickr.com/photos/kainet/288519656/ 1/2 Developers The Emergency Ward Management projects and clients “assistance” long term planning 1 Developer http://www.ﬂickr.com/photos/st3f4n/2489961263/venerdì 13 maggio 2011

Problems: knowledge Spread of knowledge on projects Humanity#phpday#phpday Accepted responsibility Economics Baby steps Mutual beneﬁt Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self-similarity Improvement venerdì 13 maggio 2011

Problems: workflow(s) Main stream (iterations) VS Emergency ward (bug, small tasks, emergencies) Humanity Economics#phpday Accepted responsibility Baby steps Mutual benefit Quality Flow Failure Opportunity Reflection Redundancy Diversity Self-similarity Improvementvenerdì 13 maggio 2011

Problems: Effort “When can we do this?”: planning, resources, negotiation Humanity#phpday#phpday Accepted responsibility Economics Baby steps Mutual beneﬁt Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self-similarity Improvement venerdì 13 maggio 2011

Problems: who does what? Fixed team(s) on project(s) Humanity#phpday#phpday Accepted responsibility Economics Baby steps Mutual beneﬁt Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self-similarity Improvement venerdì 13 maggio 2011

Problems: planning Weekly iteration planning: what about emergencies and small requests? Humanity#phpday#phpday Accepted responsibility Economics Baby steps Mutual beneﬁt Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self-similarity Improvement venerdì 13 maggio 2011

Problems: performance How much work can you do in a week? How do you measure it? Humanity#phpday#phpday Accepted responsibility Economics Baby steps Mutual beneﬁt Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self-similarity Improvement venerdì 13 maggio 2011

Lighting your process#phpday Timeboxing Kanban Bring our problems to light! Still using xp values and principles!venerdì 13 maggio 2011

Timeboxing Principles: humanity, economics, self-similarity, improvement, failure#phpdayvenerdì 13 maggio 2011

Kanban Principles: opportunity, failure, reflection, flow, economics, mutual benefit#phpdayvenerdì 13 maggio 2011

Bring your problems to light!#phpday Lead time: how long it takes to release value! Activities wait too long/Bugs discovered in QA process Too much work in progress Bottlenecks Non-standard workﬂow: why it is not in kanban?venerdì 13 maggio 2011

Still using XP values and principles#phpday Accepted responsibility Humanity Economics Mutual beneﬁt#phpday Baby steps Quality Flow Failure Opportunity Reﬂection Redundancy Diversity Self-similarity Improvement venerdì 13 maggio 2011

Still using XP values and principles Accepted responsibility Economics#phpday Failure Quality#phpday Reflection Knowledge: Diversity Kanban = first in, first out Improvement Pair programming Self-similarity Mutual benefit Flow Opportunity Reundancy venerdì 13 maggio 2011

Still using XP values and principles Accepted responsibility Economics#phpday Failure Quality Workflow(s):#phpday Reflection Kanban board, and limits on its Diversity columns Improvement Every development activity is Self-similarity on the kanban board: user Mutual benefit stories, tasks, bugs, ... Flow Opportunity Reundancy venerdì 13 maggio 2011

Still using XP values and principles Accepted responsibility Economics#phpday Failure Effort on projects: Quality#phpday Reﬂection “Continuous negotiation” based on Diversity weekly “work in progress” metrics Improvement Short release Self-similarity Daily re-arrangement of Mutual beneﬁt kanban activities Flow Opportunity Reundancy venerdì 13 maggio 2011

Still using XP values and principles Accepted responsibility Economics#phpday Failure Quality#phpday Who does what? Reflection Diversity Everyone does everithing! Improvement Kanban = first in, first out Self-similarity Pair programming Mutual benefit Flow Opportunity Reundancy venerdì 13 maggio 2011

Still using XP values and principles Accepted responsibility Economics#phpday Failure#phpday Quality Planning: Reﬂection Continuous planning Diversity Improvement At the end of each user story Self-similarity the customer can rearrange Mutual beneﬁt the activities of his project Flow Opportunity Reundancy venerdì 13 maggio 2011

Still using XP values and principles Accepted responsibility Economics#phpday Failure Quality#phpday Performance: Reﬂection Diversity “Work in progress” per week Improvement Metrics for planning Self-similarity “Continuous planning” with our Mutual beneﬁt customers Flow Opportunity Reundancy venerdì 13 maggio 2011

Questions?#phpday Joind.in : http://joind.in/2993#phpday Filippo De Santis fd@ideato.it twitter: @ﬁlippodesantis venerdì 13 maggio 2011

Xkanban: XP, Kanban and timeboxing

by Filippo De Santis on May 13, 2011

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