This schema defines the information required by maintenance personnel when a system requires maintenance. Identifies the UUT's parent system, subsystem, major component, subassembly or part of the end item. Name of the system relevant to the action Identifier related to the system Serial number needed to identify the system Most recent MAI instance document for the parent system The MAI responds to whether or not the issue is software or hardware related based on the choice made here. Choice allows for two different maintenance scenarios. If General Maintenance is selected, no discrepancy should occur. If there is a discrepancy, then a reactive maintenance must be performed. Scheduled or unscheduled maintenance not related to a detected fault. Maintenance related to a detected fault The cause(s) that lead to a reactive maintenance action 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. This can be either a document reference or an actual description of the equipment. Used to reference, by uuid, an equipment description related to the maintenance action Intended to capture all information about the equipment required to complete the repair Equipment support program The collection of information that fully document a request or receipt of assets required to complete the maintenance action. Used to capture information about the person(s) performing the maintenance action on the item. This points to an instance of the MAI document from the prior maintenance action for this UUT Describes the state of the UUT resulting from the maintenance tasks performed on it Provides the result of a maintenance action that has been performed Provides a description of the maintenance action result to better describe the nature of the result This is the identifier for the document e.g. job control number, sequence number etc. Date/time when the MAI process begins. The document description describes the maintenance action task. Intended to capture actual duration of entire MAI process. The organization that is responsible for the operation of the system. The organization that is responsible for the maintenance of the system. IF topLevelEntity=true, the ParentSystem child does not exist, ELSE ParentSystem child does exist. The effort required to complete a maintenance task Points to a Personnel attribute to obtain information about the name of the employee that performed the maintenance action References the name of the person assigned to a maintenance task Date/time when the maintenance event on the unit begins Captures actual work duration of the maintenance event Date/time when the maintenance event on the unit ends Describes the diagnostic information used to determine the reason for initiating the maintenance action. Refers to a TestResults instance document containing the results of tests performed to identify the cause of the discrepancy. identifies one or more SIMICA Test Results documents recording tests that were performed on the UUT. This includes test information used to initiate the maintenance actions not covered by the test result schema. Identifies any tests results applicable to the UUT that were not documented using IEEE Std 1636.1. This should include test information used to initiate the maintenance action e.g. user debrief, BIT codes, symptoms, MUA, environmental and performance data or tests from the previous level. This element will be used to report a failure code associated with the parent cause element, including the no fault code. Refers to an AI-ESTATE instance document containing the results of a diagnostic session performed on the UUT The name of the person or system who reported a discrepancy or cause of the need for a maintenance action Date/time when the need for corrective action was discovered Identification information for a person. Provides the mailing address for a particular person A string value representing the name of the operator Identifies the organizational affiliation of a particular person. A string value representing the email of the operator. A string value representing the phone number of the operator. The maintenance action taken as a result of the MAI For each maintenance element, one or more actions taken as a result of the required maintenance. This choice is necessary, as an instance document will either document the action resulting from maintenance or will capture the reason for non-action. Work required to restore the unit to an operational state. When something is repaired, this element lists details on the part repaired. The removal of a component required to complete the maintenance action. Installation of a component required to complete the maintenance action. The reason for not being able to perform the required maintenance on the unit. At least one of the attributes MUST be required or this adds no value. Code that best describes the reason for not being able to take corrective action Enter detailed description of reason for not being able to take corrective action This is for record-keeping only and is used after the maintenance is performed to document reason(s) for the awaiting maintenance time. Code that describes the reason for an awaiting maintenance condition Description of reason(s) for the unit to be in awaiting maintenance condition Date/time when the unit was put on awaiting maintenance condition Intended to capture actual duration of the entire awaiting maintenance event Lists relevant technical manuals that support maintenance of the UUT This references instances of the standards documents relevant to the maintenance of the UUT. Provides a textual description of the response taken Manufacturer support program. To contain a coded identifier for a maintenance event. Defined per use case. Description of maintenance action. Code that best describes the action taken to perform the required maintenance Enter detailed description of action taken to perform the required maintenance Identifier related to the action taken Used to capture information about the person performing the maintenance action on the item. Provides a unique identifier for the person performing the maintenance action Each personnel element must be designated as belonging to one of the enumerated categories. Within each use case, each of the defined skill levels will have unique associated semantics. In general, lower numbers indicate less skill. Identification code of toolbox used to perform the work on the unit Intended to capture actual duration of the time spent by the person performing the maintenance action. Address of the maintenance facility Name of the facility performing the maintenance on the unit Description of the maintenance facility's ability to perform the maintenance action Date when the manufacturer warranty begins to take effect Time the unit is covered by the warranty, e.g. one-year warranty, two-year warranty, etc. Discrepancy in the unit that is not covered by the warranty Name of the manufacturer which warrants the unit