1) Scala aims to be a concise language that allows developers to say more with less code while also squeezing performance out of computer cores. 2) While Scala code can run on the Java Virtual Machine, some objections to its deployment include that it is just Java classes and may be difficult to use. 3) The document provides recommendations for an organization to embrace polyglot programming with Scala, which is described as a better version of Java that developers will enjoy using. It suggests an approach of training and experience over time to increase competency with the language.

1. Scala

2. Why?

3. Concise
Type less, say more
Pro ①

4. Readable
… or at least it can be
Pro ②

5. squeeze performance out of your cores,
the easy way
CPU
Pro ③

6. But…

7. Deployment
Objection
①

8. it’s just Java classes
Deployment
But
①
Objection
①

9. It’s hard
But
②
Objection
②

10. Easy
Hard
But
②
Objection
②

11. Multi language
But
③
☣
Objection
③

12. Multi language
But
③
☣
Scala → Java = ♥︎
Java → Scala = ♥︎
Objection
③

13. Collective code
ownership
Objection
④
☺︎⬄☺︎⬄

14. Collective code
ownership
Objection
④
☺︎⬄☺︎⬄

15. if all → 5x
if all → ∞
1 size fits all?
But
①
Objection
④

16. Recommendations
Embrace polyglot (but carefully)
Scala is a better Java (and the best candidate)
Your developers will love you

17. How?

18. Your organisation
Experienced
Keen to learn
Curious
Neutral
Opposed
Practitioner

19. Your organisation
Experienced 34%
Keen to learn 62%
Curious
Neutral 3%
Opposed
Practitioner

20. Approach
Experienced
Keen to learn
Curious
Neutral
Opposed
Practitioner

21. Approach
Experienced
Keen to learn
Curious
Neutral
Opposed
Practitioner
Opposed → Neutral
Neutral → Curious
Curious → Keen to learn
Keen to learn → Practitioner
Practitioner → Expert
Posters
Brown bag
Weekly 1hr info sess.
Training
Brown bag
Project
Coaching
Pair programming
Brown bag