Data Skills for Agile Software Developers www.agiledata.org: Techniques for Successful Evolutionary/Agile Database Development
Home  |  Agile DBAs  |  Developers  |  Enterprise Architects  |  Enterprise Administrators  |  Best Practices  |  Agility@Scale Blog  |  Announcements  |  Contact Us

An agile software developer is anyone who is actively involved with the creation and evolution of the non-data aspects of a software application.  The responsibilities of this role can include the responsibilities traditionally associated to the traditional roles of programmers, modelers, testers, team leads, business analysts, project managers, and deployment engineers.  Agile developers work very closely with agile DBAs who are responsible for working on the data aspects of one or more applications.

Agile software developers will adopt and follow agile software development processes such as Extreme Programming (XP) or the Agile Unified Process (AUP).  When it comes to modeling and documentation they are likely to enhance these processes with the principles and practices of Agile Modeling (AM).  All three of these processes, being agile, implores developers to work closely with their project stakeholders.  The implication is that developers are responsible for helping to educate their stakeholders, including both users and managers, in the basics of software development to help them make more informed decisions when it comes to technology. 

My experience is that all developers, agile or not, need to learn fundamental data techniques.  This includes:

• Data modeling
• Relational database fundamentals
  • Referential integrity and where to put shared business logic
  • How to retrieve objects from an RDB
  • Security access control
  • Concurrency control
  • Transaction control
• Mapping objects to RDBs (O/R mapping)
• Encapsulating database access
• How to implement reports
• Working with legacy data
• XML

Furthermore, agile developers need to adopt evolutionary, if not agile, database techniques.  This includes:

• Agile data modeling
• Database refactoring
• Test-driven design (TDD)
• Database regression testing
• Taking an agile approach to modeling and documentation
• Working in development sandboxes
• Recognizing that data models don't drive object models (and vice versa)

References and Suggested Readings

The Agile Data Vision Agile Database Best Practices Agile/Evolutionary Data Modeling Agile Testing and Quality Strategies: Discipline Over Rhetoric The Criteria for Determining Whether a Team is Agile How to become more agile Introduction to Data Normalization Roles on Agile Teams: From Small to Large Survey Results (Agile and Data Management) This book describes the philosophies and skills required for developers and database administrators to work together effectively on project teams following evolutionary software processes such as Extreme Programming (XP), the Rational Unified Process (RUP), the Agile Unified Process (AUP), Feature Driven Development (FDD), Dynamic System Development Method (DSDM), or The Enterprise Unified Process (EUP).  In March 2004 it won a Jolt Productivity award. This book describes, in detail, how to refactor a database schema to improve its design. The first section of the book overviews the fundamentals evolutionary database techniques in general and of database refactoring in detail.  More importantly it presents strategies for implementing and deploying database refactorings, in the context of both "simple" single application databases and in "complex" multi-application databases.  The second section, the majority of the book, is a database refactoring reference catalog.  It describes over 60 database refactorings, presenting data models overviewing each refactoring and the code to implement it.   This book presents a full-lifecycle, agile model driven development (AMDD) approach to software development.  It is one of the few books which covers both object-oriented and data-oriented development in a comprehensive and coherent manner.  Techniques the book covers include Agile Modeling (AM), Full Lifecycle Object-Oriented Testing (FLOOT), over 30 modeling techniques, agile database techniques, refactoring, and test driven development (TDD).  If you want to gain the skills required to build mission-critical applications in an agile manner, this is the book for you.

Let Us Help

We actively work with clients around the world to improve their information technology (IT) practices, typically in the role of mentor/coach, team lead, or trainer.  A full description of what we do, and how to contact us, can be found at Scott W. Ambler + Associates.

SEARCH:

Related searches:
database software modeling unified driven

gipoco.com is neither affiliated with the authors of this page or responsible
for its contents. This is a safe-cache copy of the original web site.

gipoco.com is neither affiliated with the authors of this page nor responsible for its contents. This is a safe-cache copy of the original web site.