Narayanan Chathanur

Director, API and Microservices, Infosys Limited

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Market forces are transforming large enterprises…2

…and technology is at the core of this shift.

Disintermediation

of value chain

New business

models

Digital vs.

physical

Entry

barriers

Nontraditional

competitors

Renewing the core is equally important

API-led legacy

modernization

Enterprise

process centers

Policy

externalization

?

BPO

digitization

Fast apps

platform

3

Legacy modernization in the digital age. Why it matters?

Growth of APIs since 200713x

43%Of IT executives believe a failure to integrate with legacy systems is the

biggest barrier to implement future initiatives.

70%IT maintenance cost of the total IT budget increased because information

was available in silos

39% Of overall software reuse within organizations after enabling service APIs

api2cart5

Bn

Number of calls received by Google daily – served by API Enablement

Number of calls served by Facebook daily

4

Industry challenges demanding API enablement of legacy systems

Banking platforms

• Rising customer expectations

• Omnichannel and

personalized engagements

• Increase in mobile app

transactions

• Platforms need to cater to

increasing services, channels,

and products

• Innovation from nonbank

services and fintechs adding

new source of competition

Retail supply chain

• Deep integration of customer

experience across channels

and systems for greater

impact

• Streamline access to internal

systems for a personalized

and engaging customer

experience

• Manage growth for dynamic

and high-traffic events such as

Black Friday holiday shopping

Quantified healthcare

• Requirements for health data

interoperability

• Regulation change,

technology advancement, and

consumer expectations

• Focus on payment for

outcomes instead of for

services requires new

business models

Media

• Media content must be

delivered seamlessly from

disparate sources and formats

• Digital native non-industry

upstarts seek to

disintermediate established

companies

• Supporting the never-ending

stream of new devices slows

innovation

5

So what is holding organizations back?

How to handle the

monolithic code?

How to bring agility?

How to expose Z assets

to mobile world?

Is it possible to reuse

existing SOA modules?

Will it handle load

in peak hours?

Digital enablement of mainframe.

Will it be a success?

How to ensure security

and governance?

Typical Patterns:

• Spaghetti application

• SOA-based applications

• Storedprocs for direct data access:

6

Be More.Do More. Unlock Value.Deliver Innovation.

How can it be achieved?

API enablement options for legacy integrations

All terminal screens can be integrated via screen-scrapping technology tools provided by IBM and other vendors

Benefits• Quick and easy GUI integration

• High time to market

Products• IBM HATS, MF RUMBA, Rocket LegaSuite

API-led digital integration helps in enabling your monolithic legacy code to be exposed as service and easily build

APIs

Benefits• Integration to multiplatform applications

• Enables to build loosely coupled services

• Delivers high reusability

Products• MuleSoft, Z/OS Connect

Access system of records available on multiple repositories residing on Z/OS and rebuild business logic layer.

More commonly used for ETL processing techniques

Benefits• MIPS usage can be reduced if the new interface is built

outside mainframe

• Faster access to legacy data

Products• DB2 Direct Connect, IMS Connect, VSE

Emulation

Digital enablement

Data integration

8

Digital enablement architecture using API

Architecture overview Enablers overview

Business services

Application Programs

(CICS Cobol, PL1, C,

IMS Cobol)

CICS TS

Web server

Z/OS

REST (JSON)

JS

ON

EXCI

TCP / IP - SSL

Presentation Application Enablers Business & data

HTTP, TCP /

IP

JSON

With digital enablement, through REST

APIs mainframe assets can be exposed

to mobile applications, cloud, or web.

Through MuleSoft connectors and API

platform – create and deliver RESTFUL

APIs for Z Systems Assets in a unified

manner across Z/OS subsystems with

integrated auditing, security, and

scalability features.

API gateway

/ ESB

9

How do we do it?

Be More.Do More. Unlock Value.Deliver Innovation

Services we offerSERVICES

API-readiness

assessment

Curate the

complete

landscape and

provide API

recommendations

Quick conversion

of SOAP / Green-

Screens into

REST-based

services

Rapid API

conversion

API dev &

life cycle

management

Full implementation

of API enablement

into SOAP or

REST-based

services based on

enterprise

alignment

API

governance

Setting up API

environment for

future app

development

and POC

11

Key benefits of API enablement with Infosys and MuleSoft

01

02

03

04

05

06

Accelerated

implementation

Automation to minimize

manual intervention

Performance improvement

Dead-code elimination,

componentize to achieve, high

reusability, improved maintainability

Low risk and disruption

Externalization, componentization

of business logic, no impact on

other systems

Reduced cost

Savings vis-à-vis non-tool-

based approach

Quick social, IoT, analytics,

and cloud adoption

Easily and quickly adopt into

any one or more of the options

Builds future-ready applications

Highly scalable, agile architecture

to address evolving needs

12

A business-specific solution from MuleSoft and Infosys13

MULESOFT

ANYPOINT

PLATFORM

Integrated

with DevOps

Any cloud

/ platform

support

Integrated with

QA tools

Pluggable

common codes

Server-less

frameworks

Container-based

frameworks

Retail / commerce

Consumer banking

Supply chain partner

interaction

Manufacturing plant

systems

Smart APIs for

utilities

Insurance agencies

interaction

Healthcare

compliance APIs

Parts and overhaul

management

Infosys

microservices

Technology

platform

API for every business

API as a Service

The right ‘integrator’ is the biggest enabler of digitization

70+

300+Global Clients

Partnerships16,000+

Digital

Experts

1,000+Engagements

New-age integrators Reliable yet creative Outcome-based costingHolistic partner

Services, consulting,

partnerships, products and

platforms, and operations

Consumer-centricity with

high resilience and

predictability

Guaranteed value,

efficiency, and

effectiveness

Focus across consumer,

enterprise, and

ecosystem

14

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