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 # Namespace simulation\_framework::core::kpi

 Last update: 22.04.2026 

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**Definition**: `core/kpi/kpi_message_converter/kpi_message_converter.h` (line 20)

## Classes

- [simulation\_framework::core::kpi::Datatype](classsimulation__framework_1_1core_1_1kpi_1_1Datatype.md#classsimulation__framework_1_1core_1_1kpi_1_1Datatype)
- [simulation\_framework::core::kpi::IKpi](classsimulation__framework_1_1core_1_1kpi_1_1IKpi.md#classsimulation__framework_1_1core_1_1kpi_1_1IKpi)
- [simulation\_framework::core::kpi::IKpiMessageConverter](classsimulation__framework_1_1core_1_1kpi_1_1IKpiMessageConverter.md#classsimulation__framework_1_1core_1_1kpi_1_1IKpiMessageConverter)
- [simulation\_framework::core::kpi::KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.md#structsimulation__framework_1_1core_1_1kpi_1_1KpiContent)
- [simulation\_framework::core::kpi::KpiMessageConverter](classsimulation__framework_1_1core_1_1kpi_1_1KpiMessageConverter.md#classsimulation__framework_1_1core_1_1kpi_1_1KpiMessageConverter)

## Enumeration types

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### Enumeration type Type

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**Definition**: `core/kpi/definition/kpi_definition.h` (line 25)

```cpp
enum Type {
  kScalar = 0,
  kTimeSeries,
  kLog,
  kOther
}

```

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#### Enumerator kScalar

Type of this KPI, this affects how the KPI should be logged.

kScalar: The KPI is scalar value with unit

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#### Enumerator kTimeSeries

kTimeSeries: The KPI is a time serie

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#### Enumerator kLog

kLog: The KPI is a continuous log

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#### Enumerator kOther

kOther: Other type of KPI

## Typedefs

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### Typedef KpiMessage

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**Definition**: `core/kpi/definition/kpi_definition.h` (line 92)

```cpp
using simulation_framework::core::kpi::KpiMessage = typedef std::vector<KpiContent>

```

C++ type definition: KpiMessage is a vector of [KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.md#structsimulation__framework_1_1core_1_1kpi_1_1KpiContent). This is native C++ type and it can be converted into DDS message type rtidds::KpiMessage using converter evaluator/kpi/kpi\_message\_converter/kpi\_message\_converter.h. Message published into KpiLoggerTopic will be captured by default `KpiLoggerActivity` and each extra KPI content will be logged into the output json as additional value of complete KPI results.

**Return type**: std::vector&lt; [KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.md#structsimulation__framework_1_1core_1_1kpi_1_1KpiContent) &gt;

## Functions

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### Function operator==

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```cpp
bool simulation_framework::core::kpi::operator==(const core::kpi::KpiContent &lhs, const core::kpi::KpiContent &rhs)

```

**Parameters**:

- [const](classsimulation__framework_1_1core_1_1Topic.md#classsimulation__framework_1_1core_1_1Topic) [core::kpi::KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.md#structsimulation__framework_1_1core_1_1kpi_1_1KpiContent) &amp; **lhs**
- [const](classsimulation__framework_1_1core_1_1Topic.md#classsimulation__framework_1_1core_1_1Topic) [core::kpi::KpiContent](structsimulation__framework_1_1core_1_1kpi_1_1KpiContent.md#structsimulation__framework_1_1core_1_1kpi_1_1KpiContent) &amp; **rhs**

**Return type**: [bool](classsimulation__framework_1_1core_1_1Topic.md#classsimulation__framework_1_1core_1_1Topic)