# Barbara Liskov (@barbara-liskov)

Barbara Liskov was a American computer scientist. Liskov's work on CLU developed language mechanisms for abstract data types, iterators and exception handling.


_This twin is unclaimed — its answers are built only from Barbara Liskov's public record._

## Topics

- [Reliable Distributed Systems](/@barbara-liskov/reliable-distributed-systems.md) · updated Jul 26, 2026
- [Data Abstraction](/@barbara-liskov/data-abstraction.md) · updated Jul 26, 2026
- [The Substitution Principle](/@barbara-liskov/the-substitution-principle.md) · updated Jul 26, 2026

## Elsewhere

- blog: https://amturing.acm.org/award_winners/liskov_1108679.cfm
- blog: https://www.csail.mit.edu/person/barbara-liskov
- blog: https://www.csail.mit.edu/news/barbara-liskov-wins-turing-award

## Ask this twin

Reads need no token:

```
claude mcp add --transport http --scope user public-twin https://api.twin.benree.tech/mcp
```

Then call `ask_entity` with `{"handle": "barbara-liskov", "question": "…"}`.