Defense Acquisition Process: Military Service Chiefs' Concerns Reflect Need to Better Define Requirements before Programs Start
Highlights
What GAO Found
Most current and former military service chiefs and vice chiefs GAO interviewed from the Army, Air Force, Navy, and Marine Corps collectively expressed dissatisfaction with acquisition program outcomes and believed that the Department of Defense's (DOD) requirements development and acquisition processes need to be better integrated. The service chiefs are largely responsible for developing the services' requirements for weapon systems, while the service acquisition executives are responsible for overseeing programs to plan and develop systems. Most service chiefs told GAO they were concerned that after weapon system requirements are handed to the acquisition process, requirements are changed or added by the acquisition community (sometimes referred to as “creep”), increasing the capabilities and cost of the system. Some service chiefs stated that they are not always involved in the acquisition process and are frequently caught by surprise when cost, schedule, and performance problems emerge in programs. Current and former chiefs agreed that the chiefs should be more involved in programs, but their views varied on how best to achieve this.
GAO analyzed requirements for all 78 major defense acquisition programs and found that creep—or growth—in the high-level requirements is rare. Instead, it is after a program has formally started development that the myriad lower-level, technical requirements needed to complete a weapon system's design are defined (see figure). It is the definition of these requirements—most of which occurs after the service chiefs' primary involvement—that leads to the realization that much more time and resources are needed to build the weapon system.
Thousands of Lower-Level Requirements Are Defined after Program Start (Notional)
The process of systems engineering translates high-level requirements, such as range, into specifics, like fuel tank size. GAO has previously reported on the importance of conducting systems engineering early so that the consequences of high-level requirements can be confronted before a program starts. When GAO presented its analysis of the problem to the service chiefs, they generally agreed with it. Several noted that trade-offs informed by systems engineering must take place before programs start so that requirements are better defined and more realistic cost, schedule, and performance commitments can be made.
Why GAO Did This Study
GAO has reported extensively on problems in cost, schedule, and performance for major defense acquisition programs. According to some acquisition reform advocates, expanding the role of the military service chiefs in the process to acquire weapon systems may improve acquisition outcomes.
Following a 2014 GAO report on the service chiefs' role in the acquisition chain of command, GAO was asked to review further related issues and concerns the service chiefs have with the acquisition process and its outcomes. This report examines: (1) the views of current and former military service chiefs on the acquisition process, and (2) key problems or factors the service chiefs identified with the acquisition process and GAO's assessment of these issues.
GAO conducted interviews with 12 current and former military service chiefs and vice chiefs, and with other current and former DOD leadership to discuss the acquisition process. GAO also drew upon its extensive body of work on defense acquisitions and best practices. To assess key problems with the current process, GAO reviewed program execution information on all 78 current major defense programs.
Recommendations
GAO recommends that DOD ensure sufficient systems engineering is conducted to better define requirements and assess resource trade-offs before a program starts. DOD concurred with the recommendations, citing recent policy changes. GAO believes more focus is needed on implementing actions.
Recommendations for Executive Action
| Agency Affected | Recommendation | Status |
|---|---|---|
| Department of Defense | To help ensure that requirements are well defined and well understood before a program is approved to start system development, the Secretary of Defense should direct the military service chiefs and service acquisition executives to work together to assess whether sufficient systems engineering expertise is available during the requirements development process. |
DOD concurred with our recommendation. In response to our recommendation, DOD stated that DOD's revised acquisition policies strengthen the Department's focus on risk and trade-off analysis in requirements analysis and pre-program planning. In 2017, DOD revised its main acquisition policy--DOD Instruction 5000.02--to incorporate specific responsibilities that the military service chief and the Secretary of the military department are required to ensure that appropriate trade-offs are made among cost, schedule, technical feasibility, and performance throughout the life of a program. In particular, the military service chief and the Secretary of the military department are required to concur with the cost, schedule, technical feasibility, and performance trade-offs that have been made before the milestone decision authority can certify that a program is ready to enter into the engineering and manufacturing development phase of the Defense Acquisition System (formerly the start of system development). Now that DOD has finalized and is implementing these acquisition policy changes, we believe the intent of our recommendation has been met.
|
| Department of Defense | To help ensure that requirements are well defined and well understood before a program is approved to start system development, the Secretary of Defense should direct the military service chiefs and service acquisition executives to work together to develop a better way to make sure sufficient systems engineering is conducted and opportunities exist to better define requirements and assess resource trade-offs before a program starts. |
DOD concurred with our recommendation. In response to our recommendation, DOD revised its main acquisition policy--DOD Instruction 5000.02--strengthening the department's focus on development planning as the mechanism to ensure sufficient systems engineering is conducted and resource tradeoffs are made prior to program initiation. DOD's revised policy now requires that the military service chief and the Secretary of the military department ensure that appropriate trade-offs are made among cost, schedule, technical feasibility, and performance throughout the life of a program. In particular, the milestone decision authority is required to determine--as part of the certification and determination requirements for Milestone B--that the chief and secretary concur with the cost, schedule, technical feasibility, and performance trade-offs that have been made before certifying that a program is ready to enter into the engineering and manufacturing development phase of the Defense Acquisition System (formerly the start of system development). DOD has finalized and is implementing these changes in its acquisition policy, which we believe meets the intent of our recommendation.
|