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Documentation Methodology
The
Sarbanes-Oxley Act requires that controls over financial reporting be
organized according to a widely recognized format such as COSO’s. COSO
is the Committee of Sponsoring Organizations of the Treadway Commission,
which first reported on this subject in 1987, updated in 1992. It
provides an integrated framework for internal control that organizes a
firm’s controls into five interrelated components: Control Environment,
Risk Assessment, Control Activities, Information and Communication, and
Monitoring.
AuditOne recommends following the COSO methodology with an approach
consisting of 1) an assessment of the overall internal control
environment, 2) a business process risk assessment, 3) documentation of
financial reporting work flow, 4) categorization of the financial
reporting objectives along with the related risks and controls, and 5) a
test of the key controls.
First,
the assessment of the overall internal control environment
provides the context for assessing how seriously and effectively the
Board and management have taken their internal control
responsibilities. This becomes important input to the exercise of
figuring out where the significant risks reside within the institution
and to identifying controls over those risks. If the internal control
environment lacks formal written procedures for major operating areas,
for example, it suggests need to recognize certain sources of risk and
to look for other possible compensating controls.
The
second step involves decomposing the institution’s activities into a
limited number of categories, or business processes, and
assigning risk ratings to each major area. These process
categorizations may be driven by major balance sheet and/or income
statement items. But they will also include functions or activities
that span other areas – IT and financial reporting are two obvious
examples. Each process may then be further subdivided into two or more
sub-processes for control assessment and testing purposes.
Third,
the documentation of financial reporting work flow (the
“Narrative”) consists of a written description of all the steps,
risks and controls that make up each business process. Narratives may
be supplemented with flow charts, spreadsheets and exhibits (preferably
in electronic format). The exhibits are cross-referenced to the
Narrative. The Narratives contain all of the financial reporting
controls for a given business process, including those deemed to be Key
Controls that are therefore subject to SOX 404 testing.
Fourth,
the categorization of financial reporting objectives, along with
corresponding risks and controls, is documented on a Risk Assessment
and Control Activities (“RACA”) worksheet. We prepare a separate
RACA for each sub-process. The RACA identifies: the basic financial
reporting assertions for each sub-process (in accordance with SAS 106);
the risks to achieving those assertions; and the key mitigating controls
in place. Risks are assessed as high, moderate, or low, according to
the likelihood of financial statement misreporting due to the risks in
that business area, together with the projected impact of a risk event.
Only Key Controls are indicated on the RACA, whereas our Narrative
includes all relevant controls. Key controls are those that, if they
are functioning properly, provide reasonable assurance that risks have
been addressed to allow objectives to be met. Other controls provide
additional support and may serve as compensating controls.
Finally, all of the Key Controls for risks assessed as High or Moderate
need to be tested, as discussed further below. We recommend that
areas identified as Low Risk be discussed in the Narrative but any
related controls not be tested as Key Controls. They may, however, be
changed to a Key Control if a test fails and a compensating control is
deemed necessary (see below).
Testing Methodology
The
tests of financial reporting controls must be performed annually.
The tester (auditor) can be either internal or external, but cannot be
the same individual or firm as was hired to perform the annual financial
statement audit. We provide clear presentation of the test results – in
summary form on the corresponding RACA, and in detail on separate test
sheets. We are careful to document the time required to perform each
test and to put in place continuous reporting of project status using
the dedicated and secure online site we are able to make available to
clients via our arrangement with GroveSite (provided by Grove
Technologies). GroveSite also functions as a valuable tool for
collecting, sharing and reporting test results and other key output from
each phase of a SOX project.
Testing
methods can include corroborative inquiry (the weakest form),
observation, or tests of transactions. Tests of transactions must
employ a representative sample. To the extent possible, the testing
should be distributed throughout the year, with some roll-forward
testing late in the fiscal year. An indication of sampling parameters
is provided below. Ultimately, this will be discussed with management
and then with the institution’s external auditors before it is
finalized. AuditOne places emphasis on the importance of close
communication with both those parties, both before and during a SOX
engagement, since both of them must give their sign-off on the adequacy
of the institution’s controls as part of their Section 404 external
financial reporting requirements. |