METHODOLOGIES Transitioning Waterfall to Agile

Pance Gasteovski 15-05-2015

Agenda

02

○ Waterfall ○ Agile

• SCRUM • XP,Kanban

○ QA

Walking on water and developing software from a specification are

easy if both are frozen.

Edward V. Berard, in Life-Cycle Approaches

W A T E R F A L L M E T H O D O L O G Y

○ Classical lifecycle model – common sense approach

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WATERFALL METHODOLOGY

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WATERFALL METHODOLOGY – Why?

○ Easy to understand/easy to use ○ Intuitive ○ Provides Structure ○ Clear Milestones ○ Easy management

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WATERFALL METHODOLOGY – Problem?

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WATERFALL METHODOLOGY – Challenges?

○ Everything must be known upfront ○ Deliverables are frozen

• Not flexible to changes • Cannot adapt

○ Everything comes together in the end (if it does) ○ Test and review at the very end ○ Too late for feedback

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WATERFALL METHODOLOGY – When?

○ Known environment ○ Predictable steps ○ Known technology ○ Short terms ○ Stable projects

A G I L E |

12

SCRUM KANBAN

XP Scrumban…

A G I L E

13

S C R U M

Simple management methodology for incremental product development using cross-functional, self-organized team

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• Alternative to Waterfall • Iterative approach

– Fast feedback • Exposes problems • Autonomy/self organize

Scrum

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Scrum – vertical slice

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– Product Owner – visionary – Scrum Team – autonomy – Scrum Master – facilitator

Scrum Roles

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– Sprint Planning (beginning of sprint)

• Timeframe • Stories • Poker

– Daily standup (daily)

Scrum Meetings

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– Sprint Review (end of sprint) – Retrospective (end of sprint)

Scrum Meetings

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Scrum Board

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– Boss/worker relationship – Autonomy – Responsibility – Complexity with larger teams – Product owner not available – Distributed team

Scrum – Challenges?

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– Chaotic environment – new product development – Not intended for repeatable work – Uncertain requirements – Unpredictable technology – Self motivated team

Scrum – When?

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K A N B A N & XP

M A I N T O P I C |

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Which is the best?

Q U E S T I O N S ? |