Software as a Service

Software as a Service
Manifestation of a Manifesto

XP Values
Simplicity
Communication
Feedback
Courage
Respect

Values Drive Principles

Principles Drive Practices

Tools Help Deliver Practices
VCS
Unit Testing Frameworks
Acceptance Testing Frameworks
Build Tools
Languages
IDEs
…

Frequency of Change

Craftsmanship
Understanding the challenges in writing software, and finding the most effective ways to mitigate or eliminate them.

Values & TDD
Simplicity
Tests enable you to refactor your code relentlessly.
Testing first makes you focus only on what is needed.
Communication
Tests provide objective documentation on current system behavior.
Feedback
Tests tell you when you break something.
Courage
Tests setup a framework for you to fail safely.
Testing first puts you on solid ground when working out business value with the customer.
Respect
Tests show respect to your organization by treating the code as the asset that it is.

Personal Examples of Craftsmanship (and lack of…)
Context
Big project, big budget, small company
Done Well
Iterative delivery approach proved successful for organizational change
Done Poorly
Integrating the SAP team

isCraftsmanship
Writing unit tests under pressure
Cleaning up when you are “done”
Using acceptance tests to help new developers understand the objectives

!isCraftsmanship
Meeting the “estimate” by all means
Not offering solutions to suboptimal designs
Convincing yourself or others that a workaround is “OK, for now”
Hiring a developer for one month to “get back on track”

Future Topics
What is the path to craftsmanship by studying just the practices?
How do you stand up to the man?

Software as a Service

by Michael Falanga on May 20, 2010

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Software as a Service — Presentation Transcript