Digital Test and Evaluation Trends
Experimentation has become more prevalent in recent years, spurred by the success of the rapid prototyping and innovation cultures championed by Silicon Valley. The Big Tech philosophy is to fail fast, learn and improve. The value of experimentation in defence has already been realised in several interdisciplinary multinational exercises, such as the Unmanned Warrior exercise and Formidable Shield. These accelerate the development and integration of technologies and operating concepts by allowing them to be tested in a controlled, safe environment.
The next phase of experimentation in defence will see live exercises increasingly augmented with digital elements. The creation of ‘digital sandpits’ will allow multiple enterprises to develop components separately while collaborating in the virtual space to test them against the whole system or subsystems. This will enable physical validation to begin later in the development process when the asset is more mature.
A higher proportion of the asset’s early flaws will be exposed before it reaches the live environment, accelerating the entire programme and producing cost savings.
The digital T&E environment will make use of digital twins – synthetic representations of assets like aircraft, ships or tanks that enterprises can experiment on without requiring access to the real thing. During initial development these can be used to assess different design options prior to live trials. Later in the asset’s service life, its digital twin can be used to examine the effects of modifications without pulling the real platform out of service, increasing its availability.
Further to programme acceleration and cost savings, digital experimentation confers an added security advantage. Live trials can be overflown by satellites, allowing adversaries to observe tactics and obtain knowledge of new military capabilities. Conducting experiments virtually protects them from espionage. Individual aspects of a capability can be tested in live scenarios, but linked together digitally to avoid revealing concepts of operations.
Test and evaluation requirements often conflict with the need to maintain a platform’s availability. Possibly the starkest example is the loss of platform availability suffered by a navy when one or more of its ships require upgrades or checks during deployment. For example, minehunter vessels require their magnetic, acoustic and hull vibration signatures to be assessed regularly, to ensure they do not trigger mines. To sail them back home across oceans to a fixed sovereign testing range may mean they are out of service for weeks at a time.
Recent advances in technology allow this problem to be solved by transporting a deployable range to the ship’s location, anywhere in the world. Once calibrated in a fixed facility, all further work can be carried out in situ and the data fed back to a remote headquarters for analysis and data mining.
Deployable evaluation is enabled by developments in sensors, computing power, connectivity, and secure satellite communications. These advances will enable the concept to be extended to all warfighting domains. As new threats emerge during a unit’s deployment, equipment upgrades, testing and training can be delivered in the field, minimising disruption to operations.
The next technological leap beyond deployable evaluation is an asset that can perform its own T&E continually and without human intervention. The next technological leap beyond deployable ranges are assets carried on board the platform to provide continual T&E as needed to inform the operational status of the military system.
At present, a platform or weapon undergoes a rigorous assurance programme that may include subjecting it to vibration, impacts, extreme temperatures, moisture, dust, and myriad of other conditions. Modern digital technology will allow these data to be analysed more rapidly. This data is then used to define its tolerances and forecast its service life – but once it enters service it is dependent on human inspection to gauge its condition, and may even fail before some imperceptible flaw becomes evident. To counter this, there has been a move toward integrating sensors into equipment to monitor the forces and environmental factors acting upon it throughout its service life.
Tying it all together: the digital thread
Each of these developments confers an advantage in isolation – but by linking them all together, those advantages are multiplied manytimes over.
One common factor among all the latest digital T&E technologies is the opportunity they offer to collect data at every stage of the process – from design, into testing, acceptance into service as well as through life. This disparate data can be combined into a through-life T&E digital thread – like a medical record for a weapon or platform – spanning experimentation, developmental testing, certification and qualification, training, and the evaluation of operational tactics and upgrades. It is progressively built and maintained through collaboration between industry, assessors, regulators and military users. The assembled data can in in turn validate the authenticity of digital twins on which multiple enterprises can experiment concurrently.
This digital thread of evidence will enable rapid, incremental assurance and fielding of defence capability, increasing the pace and validity of decision making by allowing effective re-use of data and focusing new testing on the critical elements of the capability upgrade.
Making it real
The technology to achieve all of this exists today. The challenge in fulfilling the digital T&E ambition is no longer technological, but cultural. Defence enterprises are extremely protective of their intellectual property, and open collaboration can feel at odds with the need to maintain the necessary competitive advantage. But the risk of allowing new digital T&E capabilities to evolve separately is that multiple principles and practices are created that set enterprises on divergent paths. If that happens, the digital T&E opportunity and benefits it brings has been missed.
Collaborative digital T&E spaces can be configured in ways that meet these confidentiality requirements, by sharing key outputs without giving away knowhow. Data would remain the property of the various partners, overseen by an independent curator that understands and mines the data to produce a coherent picture.
Defence enterprises must work together to agree common standards and principles on the use of collaborative environments, threads and twins. Only once this is understood, and a collaborative culture is embraced, can the massive time-saving, cost-saving, and performance-enhancing benefits of digital T&E be fully realised.
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