e2 Overview¶
e2 is a light weight Erlang library that simplifies the process of writing better software.
Better Software
- Resilient in the face of unexpected faults
- Maintainable as it becomes more complex
- Performs acceptably
e2 Features
- Applications are built as systems of federated services that act independently of one another
- Code is short and focused, reflecting the principle of Separation of Concerns
- Applications can be debugged and fixed while running
- Applications continue to work, despite bugs and other faults
e2 Benefits
- Problems are easier to solve because they can be made small, concrete and understandable
- Software enhancements and fixes can be deployed more often and in smaller units, reducing the overall risk of change
- Testing costs are lower due to Erlang’s language design and fault tolerant architecture
e2 vs. Other Productivity Tools
Software language and tool development tends to focus on two areas:
- Features that improve developer productivity
- Increasing program performance
Unfortunately, developer features and faster software often come at the expense of software quality:
- Language features that hide complexity can also hide important design considerations that affect the way software runs and how it can be maintained
- Performance optimizations are often made without weighing the impact on other important software characteristics such as simplicity, reliability, and maintainability
e2 reflects Erlang’s core design principle: performance and developer productivity are important, but should not come at the expense of software reliability and maintainability.
Enough Talk!
