charleyb123 at gmail dot com Symmetry And Orthogonality System Design The Roles of In Designcharley bay charleyb123 at gmail dot com Symmetry And Orthogonality System Design The Roles of In DesignCharley DesignCharley Bay - charleyb123 at gmail dot com The Roles of Symmetry And Orthogonality In Design cppcon 2021 Either you keep self improving, or it's time to move into management. --Niall Douglas 30-Sep-2021 com The Roles of Symmetry And Orthogonality In Design cppcon 2021 Today’s Agenda • Levels of “Knowing” • Role of Symmetry • Role of Asymmetry • Role of Orthogonality • Design Relationships • Conclusion

They are orthogonal to types. Monday, October 18, 2010 Methods are orthogonal to types 22 Orthogonality of methods allows any type to have them. type Vector []float func (v Vector) Abs() float or pointers: func (p *Point) Scale(ratio float) { p.x, p.y = ratio*p.x, ratio*p.y } Orthogonality leads to generality. Monday, October 18, 2010 Interfaces 23 Interfaces are just sets of methods; It's a form of duck typing, but (usually) checkable at compile time. It's also another form of orthogonality. An object can (and usually does) satisfy many interfaces simultaneously. For instance, Point

C library, USL Standard Components… • Provide structure and fill the gaps • Extensible • Orthogonality of the component space • Semantically based interoperability guarantees • Efficient • No penalty C library, USL Standard Components… • Provide structure and fill the gaps • Extensible • Orthogonality of the component space • Semantically based interoperability guarantees • Efficient • No penalty

debugability modularity survivability degradability operability sustainability determinability orthogonality tailorability demonstrability portability testability dependability precision timeliness deployability

Maintainability tools fuzzer battery life Repeatable tests less UB Robustness Orthogonality SW helps solving problems The Last Spike Languages Memory management Expressive code

Tenets of Go’s design • Simplicity – Each language feature should be easy to understand. • Orthogonality – Go’s features should interact in predictable and consistent ways. • Readability – What is

should do just one thing.” (Common knowledge?)15 The Single-Responsibility Principle (SRP) ”Orthogonality: … We want to design components that are self- contained: independent, and with a single, well-defined

equivalence makes sense when a view table is materialized from a source table using VReplication. Orthogonality The tablet type targeting and table equivalence features are orthogonal to each other and can lookup vindex, the lookup table would have the following columns (email, user_id, keyspace_id). Orthogonality The previously described properties are mostly orthogonal. Combining them gives rise to the following

equivalence makes sense when a view table is materialized from a source table using VReplication. Orthogonality The tablet type targeting and table equivalence features are orthogonal to each other and can there is no concept of ownership because the column to keyspace ID mapping is pre-established. Orthogonality The previously described properties are mostly orthogonal. Combining them gives rise to the following

equivalence makes sense when a view table is materialized from a source table using VReplication. Orthogonality The tablet type targeting and table equivalence features are orthogonal to each other and can lookup vindex, the lookup table would have the following columns (email, user_id, keyspace_id). Orthogonality The previously described properties are mostly orthogonal. Combining them gives rise to the following