1. Java Stack 4 Providing Robust Back-end Web Services For Your Solution

2. The Business of Providing Solutions Portfolios provide a related set of solutions Each solution provides one more related services Web applications provide the ability to scale services across the globe

3. Anatomy of a Solution The front-end Delivered to the user’s device Visible to end users Provides customer interaction The back-end Resides on the network Invisible to end users Provides the logic of the business’ core services Performs the heavy lifting

4. The Ideal Solution Portfolio Front-end applications Light-weight Loosely-coupled to back-end services Back-end application services One-to-one relationship to the business’ core services (no duplication) Consumable by multiple front-end applications (scalable) Consumable by other back-end services (composable)

5. The Life of a Solution Core business services remain fairly constant Slow evolution over time Customer expectations change often and quickly Rapid evolution over time

6. Challenges: The Back-end Application services often get tailored to a specific consumer, or front- end representation. Back-end becomes tightly coupled to the front-end Services must be re-written or re-factored for each front-end consumer Services become out-of-date when the front-end is out-of-date

7. Challenges: The Front-end Tightly coupled back-ends result in server-generated front-ends: Frequent trips to the server Less responsive user-interaction Every view on the service must be secured As many as 10x to 100x the number of resources than the actual number of services that require the security Complex security rules Lots of room for error

8. The Goal Extend the life of back-end services Allow front-end representations to: Evolve independently Be more responsive Be more secure

9. Introducing Java Stack 4 Repositioned solidly to provide robust, back-end application services The recommended Stack for all ICS back-end services Cloud-ready out of the box Built upon the latest technological innovations of the global Java community (Java 8, Spring Boot, etc.) Simpler, cleaner, and more powerful than ever before

10. Cloud / Platform as a Service Browser / Mobile Device Back-End (On the Server) Front End (On the Client) Front-end Applications Static Content Java Stack 4 Application LDAP WAM Other Web Service MLU WS Oracle DB Rest API Calls

11. Java Stack 4 – Saving Time and Cost Provides a fully decoupled back-end service stack Faster, easier development, testing, and deployment Maximum scalability Longer life Much lower cost of maintenance Allows front-end solutions to maximum responsiveness Reduces trips to the server Allows front-ends to query only what has changed Easily secured Finite number of service entry points

12. Why Use Java Stack 4? The best guarantee for: Security – clean, declarative security model Efficiency – streamlined processes for development, testing, and deployment Scalability – consumable across many platforms and applications Repeatability – simple, well-understood patterns Supportability – familiar standards, reduced training requirements

13. Making the most of Java Stack 4 1.Identify your core business services 2.Federate each business service into a back-end service application 3.Keep each back-end service tightly focused to its problem domain 4.Keep each service generically consumable 5.Compose your services within the front-end or within another back- end, aggregating service

14. Where to go from here? SORT 2014 Java Stack 4 RESTful Web Applications Java Stack 4 with Spring Boot Java Stack 4 Documentation