The NRB Group mainframe day 2021 - Application Modernisation On Z - Sebastien Georis - Aymeric Affouard
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The document discusses the modernization of applications on IBM Z, highlighting the importance of maintaining the platform while addressing common challenges such as talent gaps and slow time-to-market. It emphasizes the use of a domain-driven design approach and interoperability between legacy and modern programming languages, as well as the benefits of a hybrid cloud platform. Key solutions include exposing data as REST resources and leveraging modern frameworks to optimize costs and enhance development processes.
The NRB Group mainframe day 2021 - Application Modernisation On Z - Sebastien Georis - Aymeric Affouard
- 1. MAINFRAME DAY EDITION 2021 DARE TO UNLOCK YOUR MAINFRAME!
- 2. 2 ModerniZation: The applications’ modernization on IBM Z Sébastien GEORIS (NRB) Information System Architect Head of Mainframe Architecture Aymeric AFFOUARD (IBM) Certified IT Specialist in Digital Transformation IBM Z API enablement
- 3. 3 Agenda • Why and how can we do an application’s modernization on Z • Example with a new application architecture M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z
- 4. 4 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z
- 5. 5 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z Application's modernization does not mean you have to move off IBMZ Perceived challenges With IBM Z in hybrid cloud Lack of available talent Eliminate the talent gap between IBM Z and other platforms Slow time-to-market Bring a consistent DevOps experience and cloud native development techniques Data trapped in the Mainframe Easily acces IBM Z data without moving off-platform High upfront costs Optimize costs with a hybrid cloud platform that extends to IBM Z
- 6. 6 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z From historical to Domain Driven Design service -oriented architecture ‘Historical’ Model To-be Domain 1 As-Is Domain 2 Domain 2 Domain Driven Design Model Transformation
- 7. 7 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z The Solution Building Blocks
- 8. 8 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z High Level Application Architecture Design
- 9. 9 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z Interoperability Java <-> PL/1 // Cobol Interoperability
- 10. 10 M o d e r n i Z a t i o n : T h e a p p l i c a t i o n ’ s m o d e r n i z a t i o n o n I B M Z Perceived challenges With IBM Z in hybrid cloud Lack of available talent • New application architecture Domain Driven Design • Java on Z with historical languages interoperability • RESTfull API’s with z/OS Connect Slow time-to-market • New programming Framework (PL/1 // Cobol // Java) • Dynamic update of business Rules adressed by IBM ODM • DevOps chain on Z (see Benoît presentation) Data trapped in the Mainframe • Build canonical business objects directely within the Mainframe’s • Business Layer and expose them as REST ressources from Z • z/OS Connect allows to expose directly data for read operations High upfront costs • Hybrid cloud plateform interacts with Z as a service provider throught z/OS Connect RESTfull API’s • Java workload off-loaded on zIIP processors Conclusion
- 11. 11 MAINFRAME DAY EDITION 2021 DARE TO UNLOCK YOUR MAINFRAME! www.nrb.be www.trigone.fr