ASurvey Of Legacy Migration
Stc
Date: 2005-10-13
Time: 11:45
Room: BBL room 471
Speaker: Robert Verrips
Title: A Survey of Legacy Migration
Abstract
Legacy Migration is in the business world a hot issue. Many companies
and institutions today are hampered by their current system. The
limitations of these systems come more and more into view, especially
with the advent of the Internet. Most Legacy Systems are unstructured,
hardly maintainable and non-decomposable. Documentation is not present,
old programmers are gone and the old architecture is, due to years of
maintenance, hard to recover. A manual rewriting of a Legacy System is
no option. Manual rewriting costs much time, while it results in no
extra functionality. Moreover, the current Legacy System is the result
of thousands of man-years, such that it is impossible to reproduce such
a system in short time. A possible answer to these problems is automatic
Legacy Migration. In this case programs are translated to similar
programs written in another language, or even entire systems are moved
to other platforms. For example, the movement from a mainframe to a
Unix machine that is connected to the Internet. Many problems are
solved in this way and this makes Legacy Migration an important subject
for scientific investigation.
