1、Lessons Learned Entry: 1411Lesson Info:a71 Lesson Number: 1411a71 Lesson Date: 2004-26a71 Submitting Organization: JPLa71 Submitted by: Allan LeeSubject: Actively Manage Flight Project Risks During the Mission Operations Phase (2000) Abstract: Cassini was one of the first major JPL missions to succe
2、ssfully conduct a risk management program during the Mission Operations and Data Analysis (MO&DA) phase. It was complicated by the distribution of the 500-person MOS Team across the U.S. and Europe, involving over 16 sub-teams, 9 time zones, and ITAR-mandated information exchange limitations. Define
3、 a formal risk management process early in MO&DA that will be tightly scoped to the operational phase of MO&DA. Also manage the human performance risks (fatigue, health, etc.) to mission ops. Select a flexible RM database tool.Description of Driving Event: Cassini is one of the first major JPL missi
4、ons to successfully conduct a risk management program during the Mission Operations and Data Analysis (MO&DA) phase, in addition to the normal system development program. When the risk management program was revived 3 years after the 1997 launch, the Mission Operations System (MOS) Team viewed it as
5、 a new and challenging practice. Implementation was complicated by the distribution of the 500-person MOS Team across the U.S. and Europe, involving over 16 sub-teams, 9 time zones, and information exchange limitations mandated by International Traffic in Arms Regulations (ITAR).Provided by IHSNot f
6、or ResaleNo reproduction or networking permitted without license from IHS-,-,-refer to D descriptionDTo plan the risk management process for MO&DA, training workshops and tutorials were held during 2000, and a risk management plan and schedule were issued in early 2001. Subsequent brainstorming sess
7、ions produced a Significant Risk List (SRL), risk items were sorted by mission phase, and they were documented in an on-line tool and categorized according to likelihood and impact. A Risk Team met quarterly to review the projects risk posture, add risk metrics to the on-line tool, and brief the MOS
8、 Team and NASA. The risk posture was a standard briefing topic at Cassini readiness reviews and monthly management reviews.A key to the success of this program was deferring wider participation until the risk management process was well established and understood by the JPL MOS Team. JPL did not sol
9、icit European Space Agency (ESA) and Instrument Team participation until late 2002, when the on-line tool, initial SRL, and risk performance metrics had already achieved a measure of acceptance at JPL. With these tools in place, changes in the project risk profile became easily visible to the MOS Te
10、am and Cassini project management.References:1. Robert T. Mitchell, “Cassini: An Overview of Lessons Learned,” NASA Risk Management Colloquium IV, September 4, 2003. 2. JPL Risk Management Process Implementation Guideline, JPL DocID 57312, August 16, 2002.3. ”Mars Exploration Rovers (MER) Human Fact
11、ors Management Action Plan”, December 12, 2003, as part of “Mars Exploration Rovers (MER) Safety Plan/Requirements for Visitation and Media Coverage for MER Landings”.Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-Additional Key Words: risk assessme
12、nt, mission risks, operations risks, risk drivers, failure mode, risk impact, risk likelihood, risk training, international partners Lesson(s) Learned: Cassini demonstrated that active management of risks can be implemented effectively during mission ops despite the need to involve a large, geograph
13、ically distributed, MOS organization.Recommendation(s): 1. Implement a formal risk management process during MO&DA that is tightly scoped to the operational phase (i.e., Cruise, Tour, Orbit Insertion, Probe Mission).2. Define the scope of the risk management program early in the MO&DA phase, obtain
14、project manager endorsement to encourage MOS Team acceptance, reassess risks at appropriate milestones, and continue the process until end-of-mission.3. Adopt a flexible risk management database tool that is compatible across platforms and clearly depicts the projects evolving risk posture.4. The ri
15、sk management process should include attention to human performance factors (stress, fatigue, health, work schedule, etc.) during mission operations. See reference 3.Evidence of Recurrence Control Effectiveness: Preventive Action Notice No. Z83897 was closed by JPL on August 24, 2005. Measures taken
16、 to implement Laboratory-wide corrective action on the above recommendations were a revision to the JPL risk management guidelines (JPL D-15951) to explain the changes to the risk management process, plan, and organization that occur with the advent of mission operations.Documents Related to Lesson:
17、 NASA NPR 8000.4, “Risk Management Procedures and Guidelines”Mission Directorate(s): a71 Exploration Systemsa71 Sciencea71 Aeronautics ResearchAdditional Key Phrase(s): a71 External Relationsa71 Flight EquipmentProvided by IHSNot for ResaleNo reproduction or networking permitted without license from
18、 IHS-,-,-a71 Flight Operationsa71 Hardwarea71 Mishap Reportinga71 Payloadsa71 Policy & Planninga71 Program and Project Managementa71 Range Operationsa71 Risk Management/Assessmenta71 Safety & Mission Assurancea71 SpacecraftAdditional Info: Approval Info: a71 Approval Date: 2004-20a71 Approval Name: Carol Dumaina71 Approval Organization: JPLa71 Approval Phone Number: 818-354-8242Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-
