Download The Mikado Method by Ola Ellnestam PDF

By Ola Ellnestam


The Mikado Method is a publication written via the creators of this procedure. It describes a realistic, trouble-free, and empirical approach to plan and practice non-trivial technical advancements on an current software program procedure. the tactic has basic ideas, however the applicability is significant. As you learn, you will perform a step by step process for opting for the scope and nature of your technical debt, mapping the major dependencies, and picking out the most secure option to process the "Mikado"—your target.

About the Technology

The video game "pick-up sticks" is an efficient metaphor for the Mikado approach. You put off "technical debt" —the legacy difficulties embedded in approximately each software program process— by means of following a collection of easy-to-implement ideas. You rigorously extract every one intertwined dependency until eventually you divulge the important factor, with out collapsing the undertaking.

About the Book

The Mikado Method offers a realistic procedure to devise and practice nontrivial technical advancements on an present software program process. The booklet is helping you perform a step by step process for choosing the scope and nature of your technical debt, mapping the most important dependencies, and deciding upon a secure technique to method the "Mikado"—your target. A usual derivative of this technique is the Mikado Graph, a roadmap that displays deep figuring out of the way your method works. This booklet builds on agile approaches resembling refactoring, TDD, and speedy suggestions. It calls for no specific or software program and will be practiced by means of either small and massive groups.

Purchase of the print booklet features a loose publication in PDF, Kindle, and ePub codecs from Manning guides.

What's Inside

  • Understand your technical debt
  • Surface the dependencies in legacy systems
  • Isolate and get to the bottom of middle matters whereas developing minimum disruption
  • Create a roadmap in your changes

About the Authors

Ola Ellnestam and Daniel Brolund are builders, coaches, and group leaders. They constructed the Mikado approach in accordance with years of expertise resolving technical debt in complicated legacy structures.

Table of Contents

    PART 1 the fundamentals OF THE MIKADO METHOD
  1. Meet the Mikado Method
  2. Hello, Mikado process!
  3. Goals, graphs, and guidelines
  4. Organizing your work
  5. PART 2 rules AND styles for bettering software program
  6. Breaking up a monolith
  7. Emergent design
  8. Common restructuring patterns

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Extra resources for The Mikado Method

Example text

In this small example, we can just change the code by hand. But when you have a large codebase, and you’re using a modern IDE, there’s a neat trick you can use. First, create the default constructor in FileDB. Then you can use the IDE’s Change Method Signature refactoring on that constructor. getStorageFile(). getStorageFile() as a parameter. 8. This is often an extremely powerful way of changing code, but it changes all of the calls in the codebase, so you have to make sure that that’s the outcome you want.

28 CHAPTER 2 Hello, Mikado Method! Scratch refactorings Play around, muck around, break things! Watch what happens, and then revert. Michael Feathers called this scratch refactoring in his book Working Effectively with Legacy Code (Prentice Hall, 2004). The Mikado Method uses that approach in a systematic way. ui; ... setVisible(true); } ... } Now the code and the compiler are talking to us. )” to the graph. ) must be dealt with in another way. It would be best if we could initialize it in the constructor, so we can add “Configure file for FileDB in constructor” to the graph.

When our experiments don’t seem to contribute to the expected progress, we stop for a minute and analyze the situation. Our initial efforts still pay good interest because the information we’ve discovered up to that point is often very useful when the analysis starts. The Naive Approach shouldn’t be confused with changing things at random and then committing code if it compiles. The value from this approach comes from its directness, and it stands in stark contrast to long periods of analysis that in effect don’t verify a thesis.

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