[ I N
D E P T H
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S E L F - S E R V I C I N G ]
The evolution of APIs
There are more than 12,000 APIs that give fantastic opportunity for investment management
firms to explore ways to further develop the next generation of technology play.
01
Basic
interoperability
enables the first
programmatic
exchanges of
information
Simple
interconnection
between network
protocols
Sessions
established
to exchange
information
TECHNIQUES
ARPANET,ATTP,
and TCP sessions
1960-1980
Information is shared
in meaningful ways
Creation of interfaces
with function and logic
03
1990-2000
02
Object brokers,
procedure
calls, and
program calls
allow remote
interaction
across a network
1980-1990
Interfaces begin
to be defined as
services.
New platforms
enhance
exchanges through
middleware
API layers
manage the
operational and
business support
of integration
Point-to-point
interfaces,
screenscraping,
RFCs, and ED
Tools manage the
sophistication and
reliability of messaging
Businesses build
APIs to enable and
accelerate new service
development and
offerings
Message-
oriented
middleware,
enterprise
service bus, and
service-oriented
architecture
04
2000-today
Currently APIs are increasingly scalable, monetized, and ubiquitous, with more
than 12,000 listed on Programmable Web, which manages a global API directory
Spring 2019
Message-
oriented
middleware,
enterprise
service bus, and
service-oriented
architecture
Source: Deloitte
globalcustodian.com
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