international standard for the implementation of
quality management, which is a strategic decision
for a company that can help to improve its overall
performance and become a strong basis for
sustainable development initiatives.
Therefore, the purpose of this study is to analyze
inventory control procedures that exist at PT XYZ
and design accounting information systems for raw
materials and finished goods inventory according to
ISO 9001: 2015.
2 THEORICAL FRAMEWORK
The main theory used in this study is contingency
theory. According to Duncan and Moores (1989),
contingency theory is a function of the compatibility
between the system and the environment an
organization operates. In addition, according to
Nicolaou (2000), contingency theory can support the
formation of the effectiveness of accounting
information systems. The effectiveness of an
information system is influenced by the effects of
technology, organizational structure and
environment. The effect of technology is closely
related to the use of information systems in an
organization and the effects of the environment and
organizational structure related to the performance
of employees working in an organization.
According to Diana and Setiawati (2011),
accounting information systems are systems that aim
to collect and process data as well as, report
information relating to financial transactions. On the
other hand, according to Krismiaji (2015),
accounting information systems are systems that
process data and transactions to produce information
that is useful for planning, controlling and
processing business. This is useful to be able to
produce information needed by decision makers.
System modeling consists of Use Case
Diagrams, Data Flow Diagrams (DFD) which are
translated into Context Diagrams, Level 1 and 2
Diagrams, Functional Decomposition Diagrams
(FDD), Entity Relationship Diagrams (ERD), and
user interface designs.
Data Flow Diagrams (DFD) is a process model
that is used to describe the flow of data in a system
that works supported by the system. All parties
involved in this system can see all systems working
continuously through DFD. DFD is indicated by a
context diagram which is then developed in a level 0
diagram. Figure 1 shows example of DFD:
Source: Bentley, Whitten & Dittman (2007)
Figure 1: Data Flow Diagram
Context Diagram is part of the Data Flow
Diagram which functions to map environmental
models represented by a single circle representing
the entire system.
Functional Decomposition Diagram (FDD) is a
tool used to describe the decomposition of functions
or activities of a system. Decomposition is breaking
a system into small partials or also called
subsystems. Figure 2 shows example of FDD:
Source: Bentley, Whitten & Dittman (2007)
Figure 2: Functional Decomposition Diagram
Entity Relationship Diagram is a data model that
uses many notations or also called cardinality
notations to describe data of an entity and the
relationships that occur between entities with each of
these data.
According to Romney and Steinbart (2011),
internal control is a process that is carried out to
provide adequate guarantees so that the control
objectives have been achieved. Internal control of
inventory becomes a difficult thing in management,
because the many threats that can cause inventory
cannot be calculated properly.
For the design of the system used FAST method
which according to Bentley, Whitten & Dittman
(2007) here are 8 phases namely Scope definition,
Problem analysis, Requirement analysis, Logical
design, Decision analysis, Physical design and
integration, Construction and Testing, Installation
and Delivery.
Viewed from the site iso.org, ISO (International
Organization for Standardization) is an international
standard setting body consisting of representatives
from the national standardization bodies of each