introducing sitecore habitat - sugcon eu 2016
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Introducing Sitecore HabitatRuud van FalierCo-founder & Consultant at ParTech
April 26, 2016
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“Habitat is a Sitecore solution example built on a modular architecture.”
What is Habitat?
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“Habitat is a Sitecore solution example built on a modular architecture.”
“Habitat is a Sitecore solution framework focused on streamlining the development process and optimizing productivity.”
What is Habitat?
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• Open source
• Based on open standards
• Focus on architecture
What is Habitat?
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Focus on architecture:• Flexibility
• Extensibility
• Simplicity
What is Habitat?
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“Web applications are unstable”- Abraham Lincoln, 1864
Why Habitat?
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Why Habitat?
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Why Habitat?
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Why Habitat?
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Why Habitat?
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Why Habitat?
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Why Habitat?
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Why Habitat?
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Why Habitat?
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B
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Why Habitat?
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Why Habitat?
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Layered architecture
FOUN
DATI
ONFE
ATUR
ESPR
OJE
CTS
Site-specific content & styling
Solution specific features
Foundational features
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Layered architecture
FOUN
DATI
ONFE
ATUR
ESPR
OJE
CTS
Site 1(e.g. Corporate)
Cont
ent
Indexing
Site 2(e.g. Webshop)
Navi
gatio
n
Sear
ch
Secu
rity
Prod
ucts
Site
map
Form
s
Cart
Taxonomy Assets Extensions Theming
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Layered architecture
FOUN
DATI
ONFE
ATUR
ESPR
OJE
CTS
Site 1(e.g. Corporate)
Cont
ent
Indexing
Site 2(e.g. Webshop)
Navi
gatio
n
Sear
ch
Secu
rity
Prod
ucts
Site
map
Form
s
Cart
Taxonomy Assets Extensions Theming
Dependencies
Dependencies
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Sitecore 8.1 ASP.NET MVC DynamicPlaceholders Unicorn 3.1 Bootstrap jQuery Sass Gulp
Technology stack
Assets Indexing Installer MultiSite Serialization SitecoreExtensions
Foundation
Accounts Identity Language Media Metadata Navigation News PageContent Person Search Social Teasers
Features
Website Design
Project
Layered architecture
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DemonstrationHabitat in Visual Studio
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• Everything is a module• A module has one single purpose (no “Helper” or
“Utility” modules)• Modules are kept separated from each other (High
Cohesion/Low Coupling)• A module is self contained• A module is as stable as possible
Modules
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“The granule of reuse is the granule of release”https://en.wikipedia.org/wiki/Package_principles
• What belongs together is maintained and released together• A module contains all types of data that are applicable to the
module:• Code• Configuration• Templates• Renderings• Items
Modules
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“Classes that change together, belong together”https://en.wikipedia.org/wiki/Package_principles
• Define what belongs to a single module.• Minimize the risk of a change influencing the module• The Habitat architecture is pointless without this
• Features output semantic HTML• Site-specific styling belongs in the Project layer• Only include files that belong to the module. Do not include
out-of-the-box Sitecore files or other dependencies
Modules
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DemonstrationContents of a module
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• Levels of stability• The closer to the Foundation layer, the more stable• The more stable the module, the more abstract
Layers
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“The abstractness of a package should be in proportion to its stability”https://en.wikipedia.org/wiki/Package_principles
Layers
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Layers
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“Depend in the direction of stability”https://en.wikipedia.org/wiki/Package_principles
• Project Layer -> Features Layer -> Foundation Layer
• Changes on a lower level layer have more impact and require more tests• In order to maintain productivity, we must be able to
trust the Foundation layer
Layers
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Project layer modules• Only website modules• Very concrete and
specific to the solution• Can contain styling
(CSS and design Javascript)
• No functional Javascript• No business logic
Foundation layer modules• API only• High level of
abstraction• No references to the
Features or Project layer
• Does not contain presentation
Features layer modules• No references to the
Project layer• Avoid references to other
Features layer modules• No styling (CSS and
design Javascript)• Can contain functional
Javascript• Outputs semantic HTML• Contains configuration
that is specific to the module
Layers
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Cool:• Solid architecture• Easy to understand• Future proof, designed for
growth• Community support
Not so cool:• Conventions / reasoning
not (fully) documented• Build system• Early days (stability)• Not upgradable
What do I think?
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Thomas Eldblom, Sitecore• Sitecore Habitat Architecture 1 –
Introduction: https://www.youtube.com/watch?v=2CELqflPhm0
• Sitecore Habitat Architecture 2 – Modules:https://www.youtube.com/watch?v=DgPrikqFe4s
• Sitecore Habitat Architecture 3 – Layers:https://www.youtube.com/watch?v=XKLpTMuQT4Y
Anders Laub, Pentia• The ground breaking Sitecore
Habitat:http://laubplusco.net/the-groundbreaking-sitecore-habitat
• http://laubplusco.net/layers-in-sitecore-modular-architecture
Special thanks to
Download Habitat: https://github.com/Sitecore/Habitat