<s>
Syntropy	B-Application
is	O
a	O
second-generation	O
object-oriented	O
analysis	O
and	O
software	O
design	O
method	O
developed	O
at	O
Object	O
Designers	O
Limited	O
in	O
the	O
UK	O
during	O
the	O
early	O
1990s	O
.	O
</s>
<s>
The	O
goal	O
in	O
developing	O
Syntropy	B-Application
was	O
to	O
provide	O
a	O
set	O
of	O
modelling	O
techniques	O
that	O
would	O
allow	O
precise	O
specification	O
and	O
would	O
keep	O
separate	O
different	O
areas	O
of	O
concern	O
.	O
</s>
<s>
The	O
approach	O
was	O
to	O
take	O
established	O
techniques	O
,	O
as	O
found	O
in	O
methods	O
such	O
as	O
the	O
Object-modeling	B-Application
technique	I-Application
and	O
Booch	O
method	O
,	O
and	O
reposition	O
and	O
refine	O
them	O
.	O
</s>
<s>
In	O
recognition	O
that	O
graphical	O
notations	O
were	O
much	O
favoured	O
by	O
the	O
market	O
but	O
lacked	O
rigour	O
,	O
Syntropy	B-Application
adopted	O
ideas	O
from	O
formal	O
specification	O
languages	O
,	O
specifically	O
Z	B-Language
notation	I-Language
,	O
to	O
provide	O
tools	O
for	O
both	O
precise	O
definition	O
of	O
the	O
graphical	O
notations	O
and	O
for	O
the	O
construction	O
of	O
richer	O
models	O
than	O
are	O
possible	O
with	O
pictures	O
alone	O
.	O
</s>
<s>
Although	O
development	O
on	O
the	O
Syntropy	B-Application
method	O
stopped	O
some	O
years	O
ago	O
,	O
many	O
of	O
its	O
ideas	O
were	O
subsequently	O
incorporated	O
in	O
the	O
Unified	B-Language
Modeling	I-Language
Language	I-Language
,	O
in	O
the	O
Catalysis	O
software	O
design	O
method	O
,	O
and	O
in	O
other	O
development	O
processes	O
.	O
</s>
<s>
In	O
particular	O
,	O
Syntropy	B-Application
is	O
a	O
direct	O
ancestor	O
of	O
the	O
Object	B-Language
Constraint	I-Language
Language	I-Language
that	O
forms	O
an	O
integral	O
part	O
of	O
the	O
UML	B-Language
.	O
</s>
