At this level, individuals have a basic understanding of Angular and its architecture. They are familiar with TypeScript and the concept of Single Page Applications (SPA). They also understand the MVC design pattern. However, they may not be able to create or run an Angular application independently.

Novices can set up an Angular environment and create a basic Angular application. They understand components, directives, and modules, and can perform basic data binding and event binding. They can use built-in directives and implement basic routing and navigation.

Intermediate users can handle advanced component communication and use services and dependency injection. They can manage forms and validate them, understand observables and RxJS, and use HTTP clients for API calls. They can also use pipes for data transformation and implement intermediate routing and navigation.

Advanced users can handle complex form validation and use observables and RxJS at an advanced level. They can manage state with NgRx, implement lazy loading and dynamic component loading, and use HTTP clients at an advanced level. They can also perform unit testing with Jasmine and Karma, and end-to-end testing with Protractor.

Experts can optimize performance, manage state with NgRx at an advanced level, and perform server-side rendering with Angular Universal. They can implement internationalization (i18n) and localization, use Angular CLI at an advanced level, create custom decorators and directives, and perform advanced unit testing and debugging. They can also strategize migration for new Angular versions.