Subject To Change

Subject to Change: creating great products and services for an uncertain world

by Peter Merholz, Brandon Schauer, David Verba, Todd Wilkens

Published by O’Reilly in April 2008
List Price: $24.99; Pages: 186
ISBN 10: 0-596-51683-5 \| ISBN 13: 9780596516833

This book is aimed more at designers than developers, but I believe
that good developers must understand how to design things as well as
code so I think this is a book you can benefit from. On the other
hand, you should know this is not a hard-code technical book with UML
diagrams and source code; if that’s what you’re looking for you won’t
find it here.

What you will find is a book that makes you think about how fast and
often our world is changing, and how we can successfully address the
opportunities that such rapid change offers instead of being left

If you’re interested in more detail, I’ve posted a review in DZone’s
IT Book Zone, or ask me about it at next month’s AJUG meeting.

Burk Hufnagel
Lead Software Architect

Posted in BookReviews
AJUG Meetup

Building and Deploying 12 Factor Apps in Scala and Java

June 20, 2017

The twelve-factor app is a modern methodology for building software-as-a-service apps:

• Use declarative formats for setup automation, to minimise time and cost for new developers joining the project.

• Have a clean contract with the underlying operating system, offering maximum portability between execution environments.

• Are suitable for deployment on modern cloud platforms, obviating the need for servers and systems administration.

• Minimise divergence between development and production, enabling continuous deployment for maximum agility.

• And can scale up without significant changes to tooling, architecture, or development practices.

We will build a RESTful web service in Java and deploy the app to CloudFoundry. We will go over how to build a cloud manifest, how to keep our database credentials and application configuration outside of our code by using user-provided services and go over what it takes to build a 12 Factor application in the cloud. This presentation will be heavy on code and light on slides!


Roam Dunwoody

1155 Mount Vernon Highway NE
Atlanta, GA 30338 (map)

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