Welcome to the Software Universe A Roadmap to

Welcome to the Software Universe A Roadmap to Solution Architecture Ralf Westphal, info@ralfw. de Consultant, Trainer, Author, Speaker on. NET architectural issues, MVP One Man Think Tank, Hamburg, Germany Session Code: ARC 202

X

The Fundamental Structure of Software (

about Forget classes! (for a while at least)

Building Blocks (

Software consists of Functional Units

Functional Units can have State (but don´t need to)

Functional Units are nested

Functional Units form a hierarchy of Abstractions

The Software Universe (

Grounding the Holarchy in programming artifacts

SOA DDD Application Architectural relevant Levels N-Tier ure t c e t i h c r A WSDL CCR L Arch ayered itect ure P O O De P n g si s n r e att DD D

Different Domain Models Role Dependent Approaches Asynchronicity Expl. Contracts Path of developer education Distribution

Where have all those classes gone?

) The Software Universe

) Functional Building Blocks

Functional Dependencies (

Functional Units are connected by Note the level of abstraction Functional Dependencies

Contracts (

Definition of a Functional Unit´s services

Specification

) Contracts

Order of contract definition

Order of development?

Contract-first Design

) Functional Dependencies

Software Cells (

re a tw s l l Ce f the o g S pulatin e Uni r o e s r ve p S a w t of

) Software Cells

) The Fundamental Structure of Software

Functional in the Decomposition Large

Where have all those layers gone?

Functional in the Decomposition Small

ar ds w To ue tr co m po ne … nt s

backlog features Let drive the structure…

Think (UI ) interact ion first

Component architecture of a single OS process software cell

translate How to a component architecture to Visual Studio artifacts?

From …a journey through the application to VS projects… Software Universe

Thank you!

References • The architect´s napkin http: //geekswithblogs. net/thearchitectsnapkin/Default. aspx • Blog posts on Software Cells http: //weblogs. asp. net/ralfw/archive/tags/Software+Cells/default. aspx • Contact me with your questions and insights! info@ralfw. de

Speaker • Ralf Westphal is a freelance consultant, author, and trainer on. NET software architecture topics. In the past 10 years he´s had more than 450 publications in. NET magazines. • In 2008 he co-initiated the software quality initiative „Clean Code Developer“. • Ralf also is a Microsoft MVP for software architecture, and has been a Microsoft Regional Director from 1998 until 2005. • www. ralfw. de

Resources www. microsoft. com/teched www. microsoft. com/learning Sessions On-Demand & Community Microsoft Certification & Training Resources http: //microsoft. com/technet http: //microsoft. com/msdn Resources for IT Professionals Resources for Developers

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