Legacy Systems & Seamless Travel Experience

Álvaro de Nicolás

September, 17th 2015

INDEX① Who is HBG② What is Legacy③ Our Systems Story④ Benefits of Legacy

Systems⑤ Challenges

Who are we?

Introducing HBG

4

Part of the Tui Group – World´s # 1 integrated Tourism Business

5

What is legacy?2

What is legacy?

7

1630 700 AD

300 BC 1968

1973 1862

A legacy system is a successful system

An example from Telecommunications

9

SwitchBoard

Manual Switching

Automated Switching

Multiservice Switchboard

ADSL

Voice Only

ADSL2ADSL2+

VDSLVDSL2

GFAST

SameCopper!!!

Our Systems Story2

Fully Integrated or Monolith…?

11

Fully integrated and interoperating system with ATLAS & ONLINE Platforms as the main Core of our IT landscape

ATLAS is the Operating System for the company

2 Main data centres in an active-active configuration

Initial phase with focus on Speed …

12

Database

Logic FastDevelopment

Front UI

… Business rules are either in the Database or the UI (or both!)

13

Database

Logic

FastDevelopment

Front UI

Business Rules

Adding an Online platform and Front requires a Middleware Layer for Abstraction …

14

Database

Logic

Front UI

Business Rules

ONLINE Web UI

Middleware

Fast Nature of online processing might force toChange the Legacy Business Processes

Forcing Backend to provide fast sync of many sistems(sometimes faster than ESBs and other SOA tools allowed)

And we often have to adapt the FULL E2E Process

And (as everything online) Scalability soon becomes paramount …

15

Database

Logic

Focus onScalability

But

SlowerDevelopment

Front UI

Business Rules

ONLINE Web UI

Middleware

Front UI

Business Rules

Front UI

Business Rules

Front UI

Business Rules

And if we want Scalability & Speed, we need to Change our Framework…

16

Database

MajorRearchitectureEffort

In order to have both

SPEED &SCALABILITY

Service 1

ONLINE Web UI

Middleware

Service 2 Service N

5 Questions about your Legacy System

17

1. Does it (or did it) give you a competitive advantage?a) When will that advantage erode? When will it become a commodity?

2. Can you improve/modernize certain parts of your legacy system? Or does it require a Big-Bang Approach?

3. Can your business afford to fail if you attempt to replace it?

4. Can your team and the business users cope with the change? a) Is it now the right time, or are there other things happening in the organization?

b) Can you jump a generation if you wait a bit longer?

5. Do you need new Functionality that you can develop alongside your legacy system? Replace / Renovate / Add on

5 Questions about your Legacy System

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Is itcustom?

Is itEoL?

Does it Stillgive you

advantage?

No

Yes

Do youneed new

Functionality?

No

Yes

No

Renovate

Yes

No

Can youafford to

build a new system?

Can youadd it

separately?

No

Yes

No

Add ON

Yes

Replace

Renovate

NegotiateMaintenance

Pricing

Yes

Thank you Thank You