An asterisk * in the title indicates the field is mandatory.
If a field has a default value, it is shown in the Description column.
If the field type is an array, the Field Name has a .[n] suffix, where n is the array index placeholder.
Object and array field names are listed to provide context. If a field belongs to an object or an array, the full field name is shown in dot separated notation.

Title		Description	Details
WhenCreatedUTC			Field Name: WhenCreatedUTC Type: String Format: date-time
OrganizationId			Field Name: OrganizationId Type: String
IgnoreDehydratedFlag		This parameter is reserved for internal Microsoft use.	Field Name: IgnoreDehydratedFlag Type: Boolean
AdminDisplayName			Field Name: AdminDisplayName Type: String
PSShowComputerName			Field Name: PSShowComputerName Type: Boolean
Name *		The Name parameter specifies the name of the new assignment policy. If the assignment policy name contains spaces, enclose the name in quotation marks ("). The maximum length of the name is 64 characters.	Field Name: Name Type: String
	AssignedRoles		Field Name: AssignedRoles.[n] Type: Array
	ObjectClass		Field Name: ObjectClass.[n] Type: Array
PSComputerName			Field Name: PSComputerName Type: String
Identity		The Identity parameter specifies the name of the assignment policy to view. If the name contains spaces, enclose the name in quotation marks (").	Field Name: Identity Type: String
DistinguishedName			Field Name: DistinguishedName Type: String
OriginatingServer			Field Name: OriginatingServer Type: String
	RoleAssignments		Field Name: RoleAssignments.[n] Type: Array
Roles		The Roles parameter specifies the management roles to assign to the role assignment policy when it's created. If a role name contains spaces, enclose the name in quotation marks ("). If you want to assign more that one role, separate the role names with commas. For a list of built-in management roles that you can assign to a role group, see Built-in Management Roles.	Field Name: Roles Type: String
WhenCreated			Field Name: WhenCreated Type: String Format: date-time
Organization		The Organization parameter is reserved for internal Microsoft use.	Field Name: Organization Type: String
ExchangeVersion			Field Name: ExchangeVersion Type: String
IsDefault		The IsDefault switch specifies whether the new assignment policy should become the default assignment policy. New mailboxes or mailboxes moved to an Exchange 2013 server are assigned the default assignment policy when an explicit assignment policy isn't provided. You don't have to specify a value with this switch. Setting an assignment policy as default doesn't change the role assignment on existing mailboxes. To change the assignment policies on existing mailboxes, use the Set-Mailbox cmdlet.	Field Name: IsDefault Type: Boolean
Description		The Description parameter specifies the description that's displayed when the role assignment policy is viewed using the Get-RoleAssignmentPolicy cmdlet. Enclose the description in quotation marks (").	Field Name: Description Type: String
DomainController		The DomainController parameter specifies the fully qualified domain name (FQDN) of the domain controller that writes this configuration change to Active Directory.	Field Name: DomainController Type: String
ObjectCategory			Field Name: ObjectCategory Type: String
IsValid			Field Name: IsValid Type: Boolean
WhenChanged			Field Name: WhenChanged Type: String Format: date-time
WhenChangedUTC			Field Name: WhenChangedUTC Type: String Format: date-time
ObjectState			Field Name: ObjectState Type: String
RunspaceId			Field Name: RunspaceId Type: String
Guid			Field Name: Guid Type: String

Model: device/exchange/RoleAssignmentPolicy

Model Details: device/exchange/RoleAssignmentPolicy