Struct ExternalExpectation 

pub struct ExternalExpectation {

    pub expectation_id: String,
    pub company_code: String,
    pub account_code: String,
    pub account_description: String,
    pub account_type: AccountType,
    pub fiscal_year: i32,
    pub driver: ExpectationDriver,
    pub basis: String,
    pub driver_value: Decimal,
    pub expected_value: Decimal,
    pub tolerance_pct: f64,
    pub lower_bound: Decimal,
    pub upper_bound: Decimal,
    pub actual_value: Decimal,
    pub deviation: Decimal,
    pub deviation_ratio: f64,
    pub exceeds_band: bool,
    pub fraud_inflation: Decimal,
    pub is_fraud_inflated: bool,
}

An ISA-520 substantive-analytics expectation for a single GL account over a fiscal year.

Fields

expectation_id: String

Unique expectation identifier.

company_code: String

Company the account belongs to.

account_code: String

GL account number.

account_description: String

GL account description.

account_type: AccountType

GL account type.

fiscal_year: i32

Fiscal year the expectation applies to.

driver: ExpectationDriver

Exogenous driver the expectation is built on.

basis: String

Human-readable expectation basis (the ISA-520 methodology note).

driver_value: Decimal

The driver’s value (e.g. the prior-year actual, or the index level).

expected_value: Decimal

Expected period total for the account.

tolerance_pct: f64

Materiality tolerance band as a fraction of the expectation.

lower_bound: Decimal

Lower bound of the acceptable band (expected * (1 - tolerance_pct)).

upper_bound: Decimal

Upper bound of the acceptable band (expected * (1 + tolerance_pct)).

actual_value: Decimal

Realized GL total for the account (legitimate + any fraud).

deviation: Decimal

actual_value - expected_value.

deviation_ratio: f64

Deviation in units of the tolerance band (a z-like score; |·| > 1 means out of band).

exceeds_band: bool

Whether the actual breaches the tolerance band — the ISA-520 “investigate” trigger.

fraud_inflation: Decimal

Ground truth: the fraud contribution to the actual (actual - legitimate).

is_fraud_inflated: bool

Ground truth: whether the account received any fraud postings.

Trait Implementations

impl Clone for ExternalExpectation

fn clone(&self) -> ExternalExpectation

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Debug for ExternalExpectation

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl<'de> Deserialize<'de> for ExternalExpectation

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Serialize for ExternalExpectation

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.