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Service Interfaces
Workflow Methods
IMaterial
IMaterial allows you to read from and write to the Material model.
DeleteMaterialClass (IMaterial)
Allows you to delete a material class.

Workflow IPI
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Service Interfaces
- Service Interfaces
- Workflow Methods
  - Workflow Methods
    Workflow provides a set of core service interfaces and call methods for you to use when creating a workflow. This section describes these core service interfaces and the associated call methods.
  - IArchiveManagement
    IArchiveManagement allows you to create an archive file and select the data to include.
  - IAuditTrail
    IAuditTrail allows you to write entries to the audit trail.
  - IDatabaseService
    IDatabaseService provides access to relational data, such as databases.
  - IDirectorySearch
    IDirectorySearch allows you to search the Directory of Resources for a set of resources based on a search query, or for a list of resources based on a resource class.
  - IEmailService
    You can use IEmailService to send emails as part of a workflow process.
  - IEquipment
    IEquipment allows you to read from and write to the Equipment model.
  - IEquipmentConfig
    IEquipmentConfig provides methods for configuring the equipment model.
  - IEquipmentHistorian
    IEquipmentHistorian allows you to read from and write to Historian tags.
  - IEvent
    IEventManager allows you to read from the Event model and to create an event subscription for a specific event resource.
  - IExtensionData
    IExtensionData allows you to access temporary workflow data that was previously stored in a system repository. This stored data can be associated with both internal and external systems.
  - IITService
    IITService allows you to read from the Proficy System model.
  - ILicense
    The ILicense service method provides access to active licensing information.
  - IMaterial
    IMaterial allows you to read from and write to the Material model.
    - AddAspect (IMaterial)
      Allows you to add an aspect to a material definition or class.
    - AddClass (IMaterial)
      Allows you to add a specified material class to a specified material definition.
    - AddLotToAssembly (IMaterial)
      Adds a parent/child assembly relationship between two material lots.
    - AddPropertyAspect (IMaterial)
      Adds an aspect to a material definition or class property.
    - AddPropertyToClass (IMaterial)
      Allows you to add a property to a material class.
    - ClearPropertyFromLotProperty (IMaterial)
      Clears the material definition property from being a lot property.
    - CreateMaterialClass (IMaterial)
      Allows you to create a new material class.
    - CreateMaterialDefinition (IMaterial)
      Creates a new material definition.
    - CreateMaterialLot (IMaterial)
      Creates a lot for a particular material resource.
    - CreateMaterialSublot (IMaterial)
      Creates a sublot for a particular material that is under a specified parent material resource.
    - DecrementMaterialLotOrSublotQuantity (IMaterial)
      Reduces the quantity of a specified material lot or sublot.
    - DeleteMaterialClass (IMaterial)
      Allows you to delete a material class.
    - DeleteMaterialDefinition (IMaterial)
      Deletes a material definition.
    - DeleteMaterialLotOrSublot (IMaterial)
      Deletes a specified material lot or sublot.
    - FindMaterialDefinitions (IMaterial)
      Finds all of the material definitions that exactly match the defined parameter names and values.
    - GetAspectTypes (IMaterial)
      Returns the applicable and applied aspect types for a material definition or class.
    - GetClassProperties (IMaterial)
      Returns a list of properties defined by a material class.
    - GetPropertyAspectTypes (IMaterial)
      Returns the applicable and applied aspect types for a property owned by a material definition or material class.
    - HasAspect (IMaterial)
      Checks whether a material definition or class has the specified aspect applied to it.
    - HasClass (IMaterial)
      Checks if a given material definition is associated with a given material class.
    - HasPropertyAspect (IMaterial)
      Checks if a property owned by a material definition or material class has a specified aspect applied to it.
    - IncrementMaterialLotOrSublotQuantity (IMaterial)
      Increases the quantity of a specified material lot or sublot.
    - IsLotAssemblyDescendant (IMaterial)
      Returns a value indicating whether the defined material lot is the descendant of a root material lot within an assembly.
    - QueryMaterialLots (IMaterial)
      Performs a query against a runtime database for material lots. All material lots that match the specified query criteria are returned.
    - QueryMaterialSublots (IMaterial)
      Performs a query against a runtime database for material sublots. All material sublots that match the specified query criteria are returned.
    - ReadAllMaterialValues (IMaterial)
      Returns the values of all of the properties and attributes of a material resource.
    - ReadAllPropertyAttributes (IMaterial)
      Returns the values of all attributes of a material definition or class property.
    - ReadClasses (IMaterial)
      Returns a list of classes associated with a specified material definition.
    - ReadClassProperties (IMaterial)
      Retrieves the property values belonging to a specified class from a specified material definition.
    - ReadMaterialLot (IMaterial)
      Returns a list of attributes associated with a specified material lot.
    - ReadMaterialSublot (IMaterial)
      Returns a list of attributes associated with a specified material sublot.
    - ReadMaterialValue (IMaterial)
      Reads the value of a single property or attribute of a specific material resource.
    - ReadMaterialValuesByName (IMaterial)
      Returns the values of all of the named properties and attributes of a material resource.
    - ReadPropertyAttribute (IMaterial)
      Returns the value of an attribute of a material definition or class property.
    - ReadPropertyAttributesByName (IMaterial)
      Returns the attribute names of the specified material definition or class property.
    - RemoveAspect (IMaterial)
      Removes an aspect from a specified material definition or class.
    - RemoveClass (IMaterial)
      Removes a specified material class from a specified material definition.
    - RemoveLotFromAssembly (IMaterial)
      Removes an assembly relationship between a parent material lot and a child material lot.
    - RemovePropertyAspect (IMaterial)
      Removes an aspect from a property owned by a material definition or material class.
    - RemovePropertyFromClass (IMaterial)
      Allows you to remove a property from a material class.
    - SetMaterialLotOrSublotLocation (IMaterial)
      Sets the equipment location for a specified material lot or sublot.
    - SetMaterialLotOrSublotQuantity (IMaterial)
      Sets the quantity specified by a lot or sublot requirement.
    - SetMaterialLotOrSublotStatus (IMaterial)
      Sets the status of a specified lot or sublot.
    - SetMaterialLotToClosed (IMaterial)
      Sets the specified material lot to a closed status. When a lot is in this state, it is no longer part of runtime, so it can be archived and purged.
    - SetPropertyToLotProperty (IMaterial)
      Specifies the material to be a lot property.
    - UpdateMaterialLotS95Id (IMaterial)
      Updates the S95 ID of a material lot.
    - WriteMaterialLotProperties (IMaterial)
      Writes to properties of a specified material lot.
    - WriteMaterialValue (IMaterial)
      Writes a value to an attribute or property for a material definition.
    - WritePropertyAttribute (IMaterial)
      Writes to an attribute of a material definition or class property.
  - IOpcClient
    IOpcClient allows you to read from the OPC Client model.
  - IOpcUa
    IOpcUa allows you to read from the OPC UA model.
  - IPersonnel
    IPersonnel allows you to read from and write to the Personnel model.
  - IProductionModel
    IProductionModel allows you to read from or write to the Production model.
  - IProductionReport
    IProductionReport allows you to read from the Production model.
  - IProductionRuntime
    The IProductionRuntime service interface relates to production oversight.
  - IProficyHistorian
    IProficyHistorian allows you to manage Historian servers, including reading from and writing to Historian collectors and tags.
  - IPropertyGroup
    IPropertyGroup allows you to read from or write to the properties of a resource.
  - IResourceLinking
    IResourceLinking allows you to work with resource links for all types of resources. You can start, edit, end, and query links between resources in your system.
- iFix Service Provider
Operator Task List in the Workflow Client
Best Practices

DeleteMaterialClass (IMaterial)

Allows you to delete a material class.

On the activity configuration panel, you can use a bind to define your input parameters.

Inputs	Data Type	Description
Material Class	DirectoryResource	Specifies the material class to delete.