IBM Systems magazine, Power Systems - August 2019 - 25

person who really doesn't exist, and
even if that person did exist, they
wouldn't be able to afford them,"
says Susan Gantner, partner with
Partner 400, RPG training specialist, seasoned developer in multiple
languages and IBM i evangelist.
Companies frequently ask for
&$ÉÉÃ&!î(ÉÃ1ÉÄ$%Ã!Ã20'ÃÉ0"Érience, when the candidate pool
typically coalesces around two
extremes: zero years of experience
or 30. Hire a 30-year veteran to
replace a retiring developer and the
same problem arises a few years
down the road.
The experience pitfall is just the
start. Quite often, job openings are
Ä$Ã&!!Ã%"ÉÇ®ÇNÃ/$Ä  Ä&! %Ã)Ä &Ã
experience of particular business
applications or even a certain
change management system.
"It's hard to convince, let's say
a manufacturing company, to hire
somebody who's got 15 years of
medical or insurance background,"
says Bob Langieri, president of Excel Technical Services. "A company
Ä%Ã&!ÃÆÉÃ!"É Ã&!î È Ã&ÉÃ$&Ã
"É$%! Qà !&Ã'%&Ã%"ÉÇ®Çà È'%&$1Ã
experience."
"Companies should be looking
for candidates with application development experience, particularly
business application development,"
says Gantner. "They need basic
capabilities like good written and
verbal communications skills, and
the ability to work on a team as well
as independently. Specify however
many years you want in software
development but not necessarily
RPG or IBM i because that's the part
you can easily teach them. Today's
RPG is just another modern lan'ÄÉNÃ4ÉÃÄ$ÈÃ"Ä$&Ã%î È ÃÄÃ
good developer who understands
business applications and the importance of working with the business users to meet their needs."

Modernize Your Shop
When Gantner talks of today's RPG
being "just another modern lan-

guage," she is referring to the latest incarnation of a language with
a long history. RPG was originally
Äî0ÉÈI!$Ä&ÃÄ 'ÄÉÃ!$Ã)ÇÃ
various attributes were required
&!ÃÆÉÃÈÉ® ÉÈà Ã%"ÉÇ®ÇÃÇ!' %Ã
)&Ã%"ÉÇ®ÇÃ%1 &Ä0NÃ#!ÈÉÃ&Ä&Ã
wasn't located in the correct column would trigger an error, which
is a foreign concept to developers
experienced in other languages.
In 1994, the RPG IV or Integrated Language Environment*
(ILE) RPG version of the language
allowed for some free-format
expressions, but the code was still
"$Ä$1î0ÉÈÃ!$Ä&Ã à Ä&'$ÉNÃ
Beginning in 2001, the logic portion of RPG programs could be
written in free format, but declarations of data and procedures still
required columnar code. That was
a major step in making the RPG
syntax more akin to that of modern languages.
The process continued until
the 2012 release, when virtually
all RPG code became free form.
Show an application written in this
"modern" RPG to a developer familiar with Java*, C, or even PHP and
they will feel quite at home. That
doesn't mean that they won't need
some time and training to learn the
language, but the process will be
#'&ÉÃÉ®ÇÉ &N

Pave the Way
for New Talent
The caveat to the above is that the
RPG code needs to be free form.
That is by no means a given. IBM
Ä%à (É%&ÉÈÃ% ®ÇÄ &ÃÉ!$&Ã&!Ã
continue to support earlier versions of RPG and IBM i. As a result,
applications from the 1990s or
É(É Ã>FE;%Ã)$&&É Ã î0ÉÈI!$mat RPG still run in enterprises
around the globe. The columnar,
®0ÉÈI!$Ä&Ã(É$%! Ã!Ã&ÉÃÄ guage is far more confusing to the
uninitiated and has a longer rampup time. This can add somewhat to
the challenge, but Gantner suggests an effective strategy.
First, modernize the RPG code
to whatever degree possible.
This means at least converting it
to completely free-form syntax.
Modularizing large programs to
É ÄÆÉÃÇ!ÈÉÃ$É'%ÉÃÄ ÈïÉ0Æity of UI is another step in code
modernization. Yes, it involves
a certain investment in time
Ä ÈÃÉ!$&QÃÆ'&Ã&ÉÃÆÉ É®&%ÃÄ$ÉÃ
worthwhile in terms of both more
É®ÇÉ &ÃÉ Ä ÇÉÉ &ÃÄ ÈÃÄ tenance of the code as well as
%&Ä® NÃ#!È Ã&ÉÇ #'É%ÃÄ(ÉÃ
improved dramatically since the
1980s. Fixed-format RPG applications that required thousands of
lines of code can be dramatically

THE VALUE OF RPG
RPG training specialist Susan Gantner describes training a team of
six Java developers in RPG. After the opening session of the course,
she left them with a homework assignment before returning the
following month for the second session. When she returned, they
sheepishly admitted that they hadn't done the homework. Before
she could respond, they explained why. They had been writing some
pieces of an existing business application in Java. After the class,
they converted some of that code from Java to RPG. "They had not
only learned the basics of RPG in a week, they had learned that the
power and simplicity of the language made it a better choice for
some of the code they had written earlier in Java," she says.
"We couldn't have been more delighted."

IBMSYSTEMSMAG.COM AUGUST 2019 | 25


http://www.IBMSYSTEMSMAG.COM

IBM Systems magazine, Power Systems - August 2019

Table of Contents for the Digital Edition of IBM Systems magazine, Power Systems - August 2019

Table of Contents
From the Editor: Secure by design
IBM Perspective: Prepare for future security threats
Currents: The real-world implications of IBM Project Debater extend beyond debate
Currents: On the web
Currents: Solutions
Currents: A virtual celebration
Currents: Lattice cryptography will secure data in the post-quantum era
Partner POV: Vigilance and culture change are essential to comprehensively securing IBM i
Cover Story: Protecting the Stack: IBM Cognitive Systems continue to enhance overall security
Feature 1: A Cloud Force Field: Power Systems security features evolve to stay ahead of new threats
Tech Showcase: How to recruit developers who can easily learn modern RPG- and help modernize the rest of the IT shop
Techbits: Simplify security and compliance management with PowerSC
Techbits: Ask the expert: An anti-virus solution for AIX?
Snapshot: Giorgio Caponera
Reference Point - Global Events, Education, Resources for Power Systems
2019 Power Systems Solution Edition Index
IBM Systems magazine, Power Systems - August 2019 - Intro
IBM Systems magazine, Power Systems - August 2019 - Cover1
IBM Systems magazine, Power Systems - August 2019 - Cover2
IBM Systems magazine, Power Systems - August 2019 - 1
IBM Systems magazine, Power Systems - August 2019 - 2
IBM Systems magazine, Power Systems - August 2019 - Table of Contents
IBM Systems magazine, Power Systems - August 2019 - From the Editor: Secure by design
IBM Systems magazine, Power Systems - August 2019 - IBM Perspective: Prepare for future security threats
IBM Systems magazine, Power Systems - August 2019 - Currents: The real-world implications of IBM Project Debater extend beyond debate
IBM Systems magazine, Power Systems - August 2019 - CT1
IBM Systems magazine, Power Systems - August 2019 - CT2
IBM Systems magazine, Power Systems - August 2019 - Currents: On the web
IBM Systems magazine, Power Systems - August 2019 - Currents: Solutions
IBM Systems magazine, Power Systems - August 2019 - Currents: A virtual celebration
IBM Systems magazine, Power Systems - August 2019 - Currents: Lattice cryptography will secure data in the post-quantum era
IBM Systems magazine, Power Systems - August 2019 - 11
IBM Systems magazine, Power Systems - August 2019 - 12
IBM Systems magazine, Power Systems - August 2019 - 13
IBM Systems magazine, Power Systems - August 2019 - Partner POV: Vigilance and culture change are essential to comprehensively securing IBM i
IBM Systems magazine, Power Systems - August 2019 - 15
IBM Systems magazine, Power Systems - August 2019 - Cover Story: Protecting the Stack: IBM Cognitive Systems continue to enhance overall security
IBM Systems magazine, Power Systems - August 2019 - 17
IBM Systems magazine, Power Systems - August 2019 - 18
IBM Systems magazine, Power Systems - August 2019 - 19
IBM Systems magazine, Power Systems - August 2019 - Feature 1: A Cloud Force Field: Power Systems security features evolve to stay ahead of new threats
IBM Systems magazine, Power Systems - August 2019 - 21
IBM Systems magazine, Power Systems - August 2019 - 22
IBM Systems magazine, Power Systems - August 2019 - 23
IBM Systems magazine, Power Systems - August 2019 - Tech Showcase: How to recruit developers who can easily learn modern RPG- and help modernize the rest of the IT shop
IBM Systems magazine, Power Systems - August 2019 - 25
IBM Systems magazine, Power Systems - August 2019 - 26
IBM Systems magazine, Power Systems - August 2019 - 27
IBM Systems magazine, Power Systems - August 2019 - Techbits: Simplify security and compliance management with PowerSC
IBM Systems magazine, Power Systems - August 2019 - 29
IBM Systems magazine, Power Systems - August 2019 - Techbits: Ask the expert: An anti-virus solution for AIX?
IBM Systems magazine, Power Systems - August 2019 - 31
IBM Systems magazine, Power Systems - August 2019 - Snapshot: Giorgio Caponera
IBM Systems magazine, Power Systems - August 2019 - Cover3
IBM Systems magazine, Power Systems - August 2019 - Cover4
IBM Systems magazine, Power Systems - August 2019 - Reference Point - Global Events, Education, Resources for Power Systems
IBM Systems magazine, Power Systems - August 2019 - 2019 Power Systems Solution Edition Index
IBM Systems magazine, Power Systems - August 2019 - SE2
IBM Systems magazine, Power Systems - August 2019 - SE3
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