This schema is specified in IEEE P1636.2/D5.1, "Draft Trial-Use Standard for Software Interface for Maintenance Information Collection and Analysis (SIMICA): Exchanging Maintenance Action Information (MAI) via the Extensible Markup Language (XML)." This schema is a World Wide Web Consortium (W3C) Extensible Markup Language (XML) binding of the "Draft Trial-Use Standard for Software Interface for Maintenance Information Collection and Analysis (SIMICA): Exchanging Maintenance Action Information (MAI) via the Extensible Markup Language (XML)." component defined in IEEE P1636.2/D5.1. The purpose of this schema is to allow the creation of IEEE P1636.2/D5.1 instance documents.This schema uses the W3C XML Schema definition language as the encoding. This allows for interoperability and the exchange of SIMICA component instances between various systems. This schema shall not be modified but may be included in derivative works. Copyright (c) 2009 Institute of Electrical and Electronics Engineers, Inc. USE AT YOUR OWN RISK Refers to the actual repair item as described in an associated IEEE Std 1232 XML document. Defines an XPath to the AI-ESTATE actual repair item maintained. A specific person performing the maintenance action on the system or item. Identifies the category to which a person belongs with respect to the current maintenance action. Provides the relative skill of the person as assigned by the responsible maintenance organization. Defines a specific action taken in the maintenance of some item or entity Identifies codes and descriptions used to describe a maintenance action. An application specific identifier that describes the maintenance action performed. The description that corresponds to the application specific action code of the maintenance action performed. This element describes the cause(s) that led to a maintenance action. Provides identifying information on the person performing the maintenance action. Identifies the name of the person assigned to a maintenance task Element provided to permit extensibility of the schema. A descriptive or common name for the MaintenanceAction. The value of “ID” shall be unique within the context of the containing XML instance document. A user-friendly textual name for the MaintenanceAction. Provides the date and time for the initiation of a maintenance event. Provides the date and time for the termination of a maintenance event. Provides the aggregate personnel time for the actual work duration of a maintenance event. Indicates whether or not the maintenance action was performed as part of preventative maintenance. References the related action of the maintenance task associated with the test result or a Code that best describes the reason for not being able to take corrective action in the case where NoAction was used. This element describes the cause(s) that led to a maintenance action. Refers to an IEEE 1636.1 Test Results instance document containing the results of tests performed to identify the cause of the discrepancy. Identifies the ID of the referenced TestResults ResultSet, TestGroup, Test, or SessionAction that identified the cause of the discrepancy. Refers to a non-IEEE 1636.1 Test Results instance document containing the results of tests performed to identify the cause of the discrepancy. Defines an XPath to an event from a non-IEEE 1636.1 Test Results instance document which further elaborates the test result. Uniquely identifies the non-standard test result. Defines a failure code associated with the parent cause element, including the no fault code. Refers to the Session entity of an IEEE Std 1232 Dynamic Context Model XML instance document containing the results of a diagnostic session performed on the Unit Under Test Defines an XPath to the historical AI-ESTATE diagnostic session. The name of the person or system who reported a discrepancy or cause of the need for a maintenance action Provides the date and time at which the cause was first determined. Defines the information associated with actions required for the maintenance of a product at a specific level of maintenance or at a repair facility. The organization that is responsible for the system. Contains identifying information for the MaintenanceActionInformationDocument. The MAI responds to whether or not the issue is software or hardware related based on the choice made here. This element supports the case where the object of maintenance is a hardware component rather than a software component. Refers to the actual repair item as described in an associated IEEE Std 1232 XML document. Defines a manufacturer's legal responsibility for the support of a given system or item This element supports the case where the object of maintenance is a software component rather than a hardware component. Refers to the actual repair item as described in an associated IEEE Std 1232 XML document. Manufacturer support program. Reference to the instance of the MAI document from the prior maintenance action for this Unit Under Test Describes the state of the Unit Under Test resulting from the maintenance tasks performed on it Indicates the result or outcome of a maintenance action that has been performed. Defines an application specific string to provide additional detail about an associated attribute of the parent entity. Defines an occurrence in a maintenance environment that can be decomposed into a series of compound actions. This choice is necessary, as an instance document will either document the action resulting from maintenance or will capture the reason for non-action. For each maintenance element, one or more actions can be taken as a result of the required maintenance. Installation of a component required to complete the maintenance action. The removal of a component required to complete the maintenance action. Work required to restore the unit to an operational state. When something is repaired, this element lists details on the part repaired. The reason for not being able to perform maintenance on the unit. This is for record-keeping only and is used after the maintenance is performed to document reason(s) for the awaiting maintenance time. Description of reason(s) for the unit to be in the awaiting maintenance condition Provides a code that explains the reason for awaiting maintenance on the unit. Maintenance organizations typically have a list of organization-unique codes that best describe the reasons for awaiting maintenance on the unit. This attribute provides a place to record that code. The meaning and interpretation of the code is implementation-specific. Date/time when the unit was put on the awaiting maintenance condition Intended to capture the actual duration of the entire awaiting maintenance event The facility where maintenance has been performed. Lists relevant technical manuals that support maintenance of the Unit Under Test Enumerated type defining the type of maintenance being performed on the maintenance item. Valid enumerated values include "Scheduled" and "Unscheduled". All necessary information (equipment data, personnel, training needs, etc) used during the maintenance action A description of any equipment required to complete the maintenance action. Used to capture information about the person(s) performing the maintenance action on the item. Uniquely identifies the MAI instance document. Provides the date and time when the maintenance action was initiated. Indicates the actual duration of the entire process associated with the maintenance action. A reference to the parent MaintenanceActionInformationDocument. The unique name of a Person that is a resource. A reference from the mai:PersonAssigned/@name attribute to the mai:ResourcesUtilized/mai:Person/@name attribute.