Sum up
- structure the software
- Answer for: what we are building
What Software Architecture (SA) create a complete system architecture.
The type of architecture will decide the constrains of software design.
A software must have the charateristics (based on biz requirement). SA helps connects these characteristics into structural solution.
SA prevents the accumulation of technical debts.
Example
- Microservices
- Monolith
- Event-Driven
- Serverless
How The architecture descision must based on business requirement (scaling/ traffice volume, ...etc) Helps achieve biz goal and tech strategy
Sum up
- implement the software
- answer for: how we are building
What Software Design (SD) arranging the order of component is called software design.
SD responsible for code-level design.
- what each module is doing
- what problem does each module esolve
Example
- Factory pattern
- Adapter pattern
How
- Decide the function of each component and how they interact with others.
- Create the specifications of software artifacts. How individual modules/ components are amde and interact with each other
- Follows the SOLID principle
- each class have to serve one purpose
- open for extension. add more function without breaking the existing codes
- use inheritance and dont break the app's logic
- catergorize the interfaces <> structure the code so that a class won't be forced to implement a redundant function
- decoupling the code