Slides from Oracle's ADF Architecture TV series covering the Design phase of ADF projects, specifically considering project dependencies that influence your ADF project's direction. Like to know more? Check out: - Subscribe to the YouTube channel - http://bit.ly/adftvsub - Design Playlist - http://www.youtube.com/playlist?list=PLJz3HAsCPVaSemIjFk4lfokNynzp5Euet - Read the episode index on the ADF Architecture Square - http://bit.ly/adfarchsquare

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Real World ADF Design & Architecture Principles
Project Dependencies
15th Feb 2013 v1.0

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Learning Objectives
• At the end of this module you should be able to:
– Identify factors that constrain your ADF project in regards
to technology decisions, methodologies and architecture
– Think ahead to identify areas in which your application may grow
– Participate actively in this training
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Program Agenda
• ADF Project Dependencies
• Introduction to the use case

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What decisions do you think will impact
the architecture of your ADF application?
Exercise
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ADF Architecture Decisions
• Team size, skills, capabilities
• One vs multiple applications
• One vs multi-page applications
• Multi-browser tab support
• Level of software reuse
• Sequential vs parallel development
• Application customization
• Requirements based around legacy architectures
• Legacy application modernization
• Integrating mobile
Decisions that may affect your architecture
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The ADF Reuse Challenge
• Hard for beginners, difficult to design, needs long term outlook
• Reuse for external consumers can become time consuming
• Components may need to be revisited and reworked many times
• Edge cases can create messy & overloaded components

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The ADF Reuse Challenge
• Requires explicit build management:
– Build, packaging, distribution, installation, configuration,
deployment, maintenance and upgrade issues
• Creates dependencies on a component and its contract (API)
• Need to maintain dependency graphs

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“Extreme reuse” is an obsession –
making components ready for reuse
that will only be used once is a waste
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Sequential ADF Application Development
• Consecutive develop one application after another
• For the first application
– Future reuse requires visionaries
– Reuse for some modules may never be used
• For later applications
– Potential for reuse across applications will be easier to see
– The opportunities lost
– Re-architecting required

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Parallel ADF Application Development
• Develop multiple applications
at the same time
• Reuse across applications
requires governance and clear
communication
• Waiting for reusable modules
may become a project
bottleneck
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ADF architecture is software design. This
software design has to fit into an overall IT
architecture, which may or may not be SOA.
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Cube of Dependencies Team Skills/
Size/ Location
Business / User
Requirements
(Multi Channel Access,
Customization, Accessi-
bility, Functionality)
Technology
Choice
(SOA, SSO, Java EE,
EJB, POJO, WS ...)
Budget
(Development,
Testing, Production,
Maintenance)
Application
Size
(Single application module,
Application suite, ...)
Overall IT
Architecture

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Business /
User
Requirements
Budget
Team Skill,
Size, Location
Application
Size
IT Architecture
Cube of Dependencies

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For a quick start. How about looking at
what Oracle Fusion Applications does and
just do the same?
Exercise
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Conclusion
• Building ADF applications is constraint by dependencies
that often are orthogonal to each other
• Copying Oracle Fusion Applications architecture
only makes sense if you are Oracle Fusion
Applications
– Still you can look at Oracle Fusion Applications to pick up some
ideas and pattern
• Make sure you plan your project so it can grow and leaves you
time to build up expertise
• Consider reuse as a tool not a necessity. Bad reuse can be
worse than no reuse

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Program Agenda
• ADF Project Dependencies
• Introduction to the use case

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