20
2.1.6.3 Hubungan dalam Class Diagram
Menurut Jones dan
Rama (2006 , p165),
“
(a) One-to-one relationships: one-
to-one relationships between entities are not nearly as common as one-to-many
relationships, but they do occur in AIS, (2) one-to-many: one-to-many relationships
are
common
in
accounting
systems,
(3) many-to-many:
many-to-many
relationships
can
be
converted
into
two
many-to-many relationships
by
adding
junction
table”,
artinya :
a.
one to one relationships
hubungan one to one diantara entiti
tidak dekat seperti
hubungan one to
many, tetapi dapat terjadi dalam AIS (Accounting Information System)
b.
one to many / many to one relationships
hubungan
one
to
many
atau
hubungan
many
to
one
dalam
biasa
digunakan dalam sistem akuntansi.
c.
many to many relationships
hubungan
many
to
many
dapat
diubah
kedalam
dua
hubungan dengan
menambahkan suatu tabel diantaranya.
2.1.7
Use Case Diagram
Menurut
Jones
dan
Rama
(2006,
p267),
use
case
is
a
sequence
of
steps
that
occur when an "actor" is interacting with the system for a particular purpose. (Use case
adalah
sebuah
langkah
berurutan
yang
muncul
ketika actor
berinteraksi
dengan
sistem
untuk suatu tujuan tertentu).
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