MIL-STD-1629-RevA - Barringer and Associates, Inc.

M1l,-STi)-1629A4.2.2 Next hfgher level. Next higher level effects concentrateon the impact an assumed damage mode has on the operation and functionof the items In the next higher indenture level above the indenturelevel under consideration. The consequences of each postulated damagemode affecting the next higher indenture level shall be described.-4.2.3 End effects. End effects evaluate and define the totaleffect an assumed damage m~de has on the operation, function, or statusof the uppermost system. The effect of each damage mode upon the essentialfunction(s) affecting weapon system operating capability and missioncompletion capability shall be determined. The end effect described maybe the result of a double failure. For example, failure of a safetydevice may result in a catastrophic end effect only in the event thatboth the prime function goes beyond limit for which the safety device iSset and the safety device falls. Those end effects resulting from adouble failure shall be indicated on the DMEA worksheets.4.3 Remarks. ~Y pertinent remarks pertaining to and clarifyingany other column in the worksheet line shall be noted. Notes regardingrecommendations f~r design iulpr~vement shall be recorded and fur~heramplified in tileFMECA report, General Requirements, 4.5. This entryalso may include a notation of unusual conditions, damage effects ofredundant items, recognition of particularly critical design features orany other remarks t}latamplify the line entry. Information shall beprovided that reasonable actions and considerations are or have beenaccomplished to enhance sllrvjvability through recommended desi~n changes.Infcrmat:on r>ro~~jd$~dsh~ll ~dd~~ss ~:~~~~ll~bing:a. EQW Those features of the design that relate tothe identified damage mode that minimize the vulnerabilitywith respect to the specified threat mechanisms;i.e., redundancy, separation of components, lines,and structure, elimination of fire paths, integralarmor, etc.b. Test. Those tests recommended to verify the designfeatures recommended or incorporated for survivabilityenhancement.c. History. Identification of previous testing and—.——.— -analysis rela~lng to this particular case which willbe used to support the validity.5. Ordering data. The frllo~’in~ details shall kc specifi~din the appropriate contractual documents:a. Task 101 (SQL 1.2 of Task 104),b. Threat mechanisms (see j. of Task 104).TASK 10424 I?ovvmber 198fl