topical media & game development

talk show tell print

object-oriented programming

Patterns in Software Architecture


Anton Eliens

footsteps in the snow

slide: Footsteps in the snow

we create software to create an infrastructure for life

so we discover patterns of life

slide: Software for life

slide: Building software

Each pattern is a three part rule, which expresses a relation between a certain context, a problem and a solution.

slide: Alexander (1)

slide: Where is the pattern?

each pattern describes a problem which occurs over and over again in our environment and then describes the core of the solution to that problem, in such a way that you can use the solution a million times over.

slide: Alexander (2)

Is software architecture a craft?

slide: is it a craft?

slide: An eye for details

slide: An eye for details

Or is it politics?

slide: or is it politics?

slide: Creating an overview

slide: back to building software

A (component) framework embodies a problem solving mind set

slide: Architecture and patterns

slide: Guess ...

The knowledge imposes a pattern, and falsifies.

For the pattern is new in every moment.

T.S. Eliot

slide: Guess ...

There is no silver bullet

It is a brave architect who, in today's environment, does not develop, or at least consider, an object-oriented design.

 [Practice] p. 10

Software Architecture Revisited

slide: It is a brave architect ...

..., ignoring details, plugin architectures indicate what may become the dominant paradigm of the future,

framework-like environments that are extensible by components following a clearly defined pattern or protocol.

That is to say, components created according to the Principles of Object-Oriented Software Development.


  • a matter of discovery
  • establishing practice
  • lazy building

delay commitment

slide: In summary

there are no conclusions

instead we have

the matrix

slide: The Patterns Matrix

(C) Æliens 04/09/2009

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