Applying Wardley Maps to YOUR domain

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Bild:[December 21, 1944], HQ Twelfth Army Group situation map https://www.loc.gov/item/2004630293  @Tom_Asel  Applying Wardley Maps …    … to YOUR domain!  Battle of Antietam, Md., LoC https://www.loc.gov/item/gvhs01.vhs00259/ 

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What is YOUR domain?

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https://www.uml-diagrams.org My domain: Software Architecture https://www.uml-diagrams.org https://jaxenter.de/domain-driven-design-2 https://alistair.cockburn.us/hexagonal-architecture475 https://twitter.com/NathanLee/status/890136808109027328

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?   Considerations  In my domain...  ● … which capabilities are of strategic importance?  ● … what are the characteristics of evolution?  ● … what forces drive evolution?  ● … what types of capabilities are relevant?  ● … what patterns do apply?  ?  

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?   Considerations  In my domain ...  ● … which capabilities are of strategic importance?  ● … what are the characteristics of evolution?  ● … what forces drive evolution?  ● … which types of capabilities are relevant?  ● … what patterns do apply?  ?  

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• Don't get bogged down in the complexity of your domain. • Start with a schema that helps to identify Users and needs in your context. Explore your domain!  Focus on the essentials!  Purpose  Scope  User (Anchors)  Needs  Moral imperative “Why of Purpose” What is on scope, What not? Find Focus! Who are The Users within Scope? “Know your Users” What are their needs?

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Purpose  Scope  User (Possible Anchors)  Needs 

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!   Purpose  Scope  User  Needs  We produce high quality software products by providing just enough architecture to get the Job done in Time! Always! IN: Development Operations Project Mngmt OUT: Marketing Customer Care Sales Developer Functioning Workspace Quality culture Start small  !  

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Anchor  Foo  Bar  Baz  Boo  Visibility  Start small  Need  • Start with a single user and only few needs. • You can always add more to the map later on. • Do so, if the map proofs to be valuable only. • Collect potentially useful capabilities • Keep in mind: There is no such thing as a perfect map. • Don’t waste too much time on trying to create on

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A clean start ...  … simplifies further mapping  Visibility  Novel  Best  Evolution  Emerging  Good  Dev-Team  Foo  Bar  Baz        Boo  Modifiability  Time behaviour 

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Evolution & Movement  Evolution  Uncharted Domain  Industrialised Domain  Chaotic  Uncertain  Unpredictable  Changing  Different  Exciting  Future Worth  Unusual  Rare  Poorly Understood  Experimentation  Differential  Competitive Advantage      Ordered Known Measured Stable Standard Obvious Low Margin Essential Ubiquitous Defined Volume Operations Operational Efficiency Cost of Doing Business Past  Future 

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What is the state of evolution for this?  Evolution  Uncharted Domain  Industrialised Domain  Chaotic  Uncertain  Unpredictable  Changing  Different  Exciting  Future Worth  Unusual  Rare  Poorly Understood  Experimentation  Differential  Competitive Advantage      Ordered Known Measured Stable Standard Obvious Low Margin Essential Ubiquitous Defined Volume Operations Operational Efficiency Cost of Doing Business Architectural component 

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Characterize evolution!  Architectural component  Our understanding of code  Testability  Robustness  Available Support  Stability  Code Quality  Maturity of technologies used  Available Resources  Knowledge of technologies used  • Find the characteristics of the components of your domain • Collect, map, brainstorm, … them!

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Visibility  Experimental  Sustainable Planning  Evolution  Usable  Efficient  • Characteristics change as capabilities evolve • Find appropriate names for the stages of evolution Characterize evolution! 

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Visibility  Evolution  Uncharted Domain  Industrialised Domain  Efficient  Usable  Experimental  A map of a systems architectural building blocks  + testing + robustness Web-UI  Contract Handling  Authorization  Message Broker   lack of knowledge of modern technologies AI-Advisor  Contract-System Adapter  Maintenance-Team  REST API  Sustainable Planning 

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“Everything evolves through supply and demand competition”    - Simon Wardley 

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Advice:   Investigate domain-specific effects on evolution  • What enables or hinders movement? De-Accelerators  Accelerators  + Movement

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Visibility  Evolution  Uncharted Domain  Industrialised Domain  Product  Custom  Genesis  What forces affect evolution?  Commodity  Platform  + Competition

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Visibility  Evolution  Uncharted Domain  Industrialised Domain  Efficient  Usable  Experimental  What forces affect evolution?  Sustainable Planning  Platform  + Competition Architectural component  Software Aging  Past success with legacy infrastructure 

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Map your understanding!  ● Anchor: Yourself / Team / …    ● Visibility: Relevance for you / Team / …    ● Evolution: Degree of your understanding    ● Choose appropriate names for the stages of evolution (e.g. Practice)    ● Movement: What can be done to improve your understanding  Visibility  Novel  Best  Evolution  Emerging  Good 

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Visibility  Evolution  Uncharted Domain  Industrialised Domain  Good  Emerging  Novel  How well is our understanding of the building blocks of a system?  Dev-Team  Best  Web UI  AI-Advisor  (experimental)  Authorization            Contracting Module              Messaging-System  Adapter              Message Broker  (COTS, Standards)  REST API 

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Use symbols for different types of capabilities  Visibility  Genesis  Commodity  Evolution  Custom  Product  Novel  Best  Emerging  Good  Experimental  Sustainable Planning  Usable  Efficient  • For example: • Products: What we use • Understanding: What we know • Artifacts: What we create • Name the stages of evolution to fit the capability types characteristics • Provide a visual legend Artifacts:  Understanding:  Products: 

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Visibility  Evolution  Uncharted Domain  Industrialised Domain  Good  Product  Emerging  Custom  Novel  Genesis  Map: Intended strategy to improve our knowledge  Contracting Module  Dev-Team  Best  Commodity  Process  Know-How  Understanding of Contract Platform Platform Documentation  Contracting-  Platform (Commercial product)  Missing knowledge of contracting platform  Expert knowledge on processes not yet established  + Training, Onboarding  + Workshop with Platform Provider  + Demand adequate  documentation  + Cross-Functional Team   with Domain Experts  Efficient  Usable  Experimental  Sustainable Planning 

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Patterns of YOUR domain! 

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Patterns of YOUR domain!  !! ! ! ! ! ! !!! ! ! !!! ! ! !!! ! ! ! !! !!! !!!

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Create a library of patterns for your domain!  • Find the patterns that can be of value in your domain • Enhance them with existing domain knowledge. • Define new patterns specific to your domain • Don't be afraid to leave out things that don't apply to your domain. • Ditch what is not of use but challenge your assumptions!

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!   Don’t explain the method beforehand.  Just use it.   ● “Nobody cares about your precious framework”  - Ben Mosior    ● Let the other person decide if they want to dive deeper. 

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TOM ASEL  @Tom-Asel  Tom Asel  Tom Asel  mail@tom-asel.de  +49 6252 6033 536  www.tom-asel.de  Q & A 