Keeping design on target

Technology may advance in leaps and bounds, but the physical and cognitive abilities of people who use technology stay much the same. History tells us the performance of new products is better when human performance is among the factors considered during the design and development process.

What does this mean to the military materiel developer? Military products, including weapon systems, perform better when we consider and accommodate a Soldier's physical and cognitive skills during design and development. We do this within an engineering process called human systems integration (HSI).

Product capabilities do not exist in isolation. They interact with and affect--while being affected by--the user as well as other products. HSI is the concept of ensuring that system designs are an extension of the user rather than an addition. When the user, the Soldier, is the dynamic center of a system of systems in military materiel development, HSI ensures that system designs continuously account for and involve the Soldier-user. These considerations include the Soldier's inherent capabilities and limitations, the environment, other equipment and systems, squad members and the mission. Optimizing any given materiel solution depends on the extent to which its design optimizes the functions of the overarching system of systems.

At Project Manager Soldier Weapons (PM SW), assigned to Program Executive Office (PEO) Soldier, one aim of weapon development programs is to produce and field adaptive and agile technology advances to the asymmetric battlefield. PM SW approaches all acquisition programs with this in mind. The organization strives to reduce acquisition time and improve product effectiveness by introducing Soldier performance into the equation early in the overall process.

Focusing on lightening the Soldier's load and other strategies for optimization aren't new per se. The Army HSI Program, formerly called MANPRINT, has existed since the 1950s. However, specifically integrating HSI into system requirements and source selection is a relatively new approach for project management offices. PM SW takes a particularly progressive approach to using dedicated, integrated HSI support.

IT STARTS WITH THE SOLDIER

Battlefield overmatch, the condition in which one side's capabilities and resources far outweigh the adversary's, is not simply an outcome of superior firepower. Overmatch derives from the superiority and dominance of the stronger force's war?fighters in conjunction with the advanced weapon systems they use.

Thus, HSI factors pertaining to usability, situational awareness and maneuverability are driving forces in achieving overmatch. A weapon system is only as good as a Soldier's ability to use it effectively. HSI enables the Army to develop a system that augments Soldier capabilities and mitigates performance limitations.

PM SW routinely uses a Soldier-system strategy and not just a systems-strategy approach. This kind of strategy helps define parameters needed to support the operational capability of any materiel solution. For example, a rifle's operational capability is based on its accuracy, ballistic effect, reliability and rate of fire. Traditionally, the definition of accuracy has been in terms of target effects (e.g., a weapon in a stand must meet a 5-inch mean radius impact at 300 meters). While this kind of measurement is necessary, it fails to consider HSI.

A Soldier-system-centric approach also defines accuracy as the extent to which rifle designs facilitate aim stabilization and mitigate the effect of recoil for follow-on shots. Thus, accuracy includes:

• The degree to which a weapon's fire selector is easily accessible to right- and left-handed Soldiers with hand sizes ranging from the 5th to 95th percentile.

• The extent to which the size, shape, weight and center of gravity of the rifle's design facilitate mobility and manipulation when transitioning between targets or maneuvering through small areas.

• The ease of maintenance requirements and malfunction procedures.

• The round capacity, trajectory of the ammunition used and the ease of changing the magazine.

• The compatibility with enabling systems and the operational capability of the enabler itself.

This definition, combined with the specifications for target effects, is a soldier-system-centric way of determining accuracy.

A COLLECTIVE EFFORT

Current policy requires an Army HSI assessment for each acquisition milestone, beginning at Milestone B. However, PM SW recognizes the importance of establishing underlying design parameters for systems that bridge the operational--not simply the technical--capability gaps.

This calls for maintaining productive partnerships with other organizations involved in the process. For PM SW, they include most notably the Lethality Branch, Soldier Division, of the U.S. Army Maneuver Center of Excellence (MCoE) at U.S. Army Training and Doctrine Command (TRADOC), and the U.S. Army Research Laboratory Human Research and Engineering Directorate (ARL-HRED) of the U.S. Army Research, Development and Engineering Command (RDECOM).

PM SW works closely with ARL-HRED and MCoE to support upfront assessment and experimentation that are geared toward defining these parameters, integrating HSI earlier in the PM's acquisition efforts and providing HSI support to the requirements process. Thus the focus of acquisition efforts broadens from system-centric to Soldier-system-centric.

ARL-HRED is the lead for the Army HSI Program (AR 602-2, "Human Systems Integration in the System Acquisition Process"). For maximum effectiveness, we must consider HSI far earlier than when an HSI assessment is required. Being able to identify and investigate HSI considerations in concept development, thereby influencing requirements generation and science and technology (S&T) processes, should result in the transition to a program of record that addresses underlying capability gaps in the manner needed. HQDA G-1 termed the idea of performing HSI work earlier than required "moving human systems integration to the left." ?TRADOC, the Decker-Wagner Army Acquisition Review and Army Acquisition Policy endorse this practice, recognizing that early, integrated HSI can provide return on investment across a product's entire life cycle.

PM SW has worked with ARL-HRED and MCoE to develop a progressive strategy incorporating HSI in other nontraditional ways as well. Whereas ARL-HRED provides expertise in HSI and the behavioral sciences, MCoE ensures that this expertise is applied in an operationally relevant context. PM SW uses the results of this collaboration in several ways, such as influencing source selection of new products.

The partnership among PM SW, MCoE and ARL-HRED is critical to this process. Open and continuous discussion and collaboration to define scenarios and Soldier-system performance metrics ensure that evaluation of HSI is experimentally reliable and operationally valid. This application drives results for PM SW's acquisition efforts, which optimizes Soldier-system performance and maximizes Soldier acceptance of fielded systems. PM SW considers the needs of each particular program and effort when tailoring an HSI program to the item.

The following examples illustrate how the three organizations have used HSI effectively:

• Research: PM SW funds HSI studies, designed and conducted by ARL-HRED in collaboration with MCoE, to evaluate the impact of different materiel solutions on Soldier-system performance. PM SW uses the results to inform requirements or engineering change proposals. In one such study, results indicated that currently available solutions that can technically meet the requirement may fail to support functional needs. As a result, PM SW incorporated modifications to the requirement language. ARL-HRED is now pursuing a collaborative research and development agreement with industry partners to further this initiative.

• Soldier acceptance: PM SW funded ARL-HRED support to MCoE to identify critical functional needs that underlie Soldier acceptance and general usability of an end product. ARL-HRED, PM SW and members of the Picatinny Arsenal legal and procurement communities developed a qualitative research design (QRD). With the QRD, ARL-HRED will use Soldier acceptance events as criteria for down-selecting in source selection competitions. This ensures that the final product not only meets all product specifications but also truly reflects what the Soldier wants and needs in the field.

• Review of lessons learned: PM SW and MCoE use this exercise to support requirements generation. Just as new technology incorporates what already exists, it must also draw upon lessons learned from previous development and acquisition efforts. These lessons come from rigorous reviews of operational testing, post-combat survey data, HSI assessments and other Soldier feedback and Soldier-system performance sources. MCoE incorporates these lessons in new and sometimes existing requirement documents (e.g., through memos of clarification), and uses them to inform test and evaluation strategy in order to ensure assessment of the system's functional performance.

CONCLUSION

Industry has successfully applied HSI early in product development for quite some time, but PM SW is the only project management office currently using it as a regular part of source selection and other nontraditional applications within the Army.

It has introduced HSI to several programs currently in the early stages of acquisition--including the Grenadier Sighting System, Compact Semi-Automatic Sniper System, XM-17 Modular Handgun System and Small Arms Fire Control--and to the Improved Weapons Cleaning Kit, which has been fielded. Analysis and documentation of the return on investment will follow product fielding.

An integrated HSI program supports requirements development, testing and procurement processes. HSI helps create an acquisition program that bridges the gaps between operational needs, requirements, S&T and products. PM SW is broadening the focus to Soldier-system performance and system-of-systems considerations. It is leveraging information from the field and capitalizing on ongoing S&T investments and research efforts by the government, industry and academia.

Making transformational advances in small arms requires learning from and leveraging past and current Army investments. Program managers must reach across organizational lines to best develop and procure materiel solutions that operationally support an underlying capability gap. Widening the focus of priorities from system performance to Soldier-system performance facilitates an adaptive and agile operational capability and yields a better return on acquisition investment. Incorporating HSI within the PM SW portfolio is critical for future investments in Army systems that will augment Soldier capabilities and mitigate Soldier limitations to achieve battlefield overmatch.

Related Links:

U.S. Army Acquisition Support Center

Army AL&T Magazine

U.S. Army Research Laboratory Human Research and Engineering Directorate

U.S. Army Research, Development and Engineering Command

PEO Soldier

Project Manager Soldier Weapons

U.S. Army Training and Doctrine Command

USAASC Flickr - October - November 2015 Army AL&T Magazine