Design and Reality: Essays on Software Design

Table of Contents
About the Authors
	Mathias Verraes
	Rebecca Wirfs-Brock
Design & Reality
	Domain language vs Ubiquitous Language
	Drilling Mud
	Scenarios
	A Breakthrough
	An Act of Creation
	Is it a better model?
	Design Creates New Realities
Models & Metaphors
	Case Study
	Data Matching
	Domain Modelling
	Trust
	Trust as an Object
	Trust as a Process
	Business Involvement
	Trust as an Arithmetic
	The Evolution of the Model
	Discussion
	Good Metaphors
	Bad Metaphors
	Conclusion
Critically Engaging with Models
	Models Are Worldviews
	Hierarchies and Networks
	Heuristics
	Models Distract
	The Spotify Model
	Agile Fluency
	Team Topologies
	Explicit Building Blocks
	When the Team Gets Too Big: a Case Study
	Contrasting Spotify and Team Topologies
	Comparing Models Yourself
	Bossy Models
	Getting Too Cosy with the Model
	Prescriptive, Descriptive, Aspirational
	Putting the Model to Work
	Conclusions
Splitting a Domain Across Multiple Bounded Contexts
	Deliberate Design Choices
	Twenty Commodities Traders
	Trade-offs
	Multiple Bounded Contexts in Ordinary IT Systems
	Conclusion