Short, direct answers on installed-base economics, reverse logistics, cable CPE, the circular economy, Digital Product Passports and decision science, with links to deeper Tallgrass articles.
An installed base is the population of products a manufacturer has sold that are still in use: fielded units, deployed systems or a fleet. It is where most lifetime revenue and cost sit, through parts, service, warranty, returns and end-of-life recovery. Managing it well starts with knowing which serialized unit is where, and in what condition.
Read more: Five Problems B2B-OEM Aftermarket Organizations Live With
Installed-base data is spread across ERP, CRM, service, warranty and returns systems, each with its own identifiers and definitions. Units change owners, locations and configurations without a single record following them. The result is a fleet that is large, valuable and only partly visible to the Aftermarket and Lifecycle Services teams who must manage it.
Read more: LPS
Lifecycle economics measures the cost and value of a product across its full life, not just at the point of sale. It includes service, parts, returns, refurbishment, redeployment and disposition. Decisions made on lifecycle economics often differ from decisions made on purchase price or sales velocity alone.
Read more: Five Problems · Extraordinary Valued Platforms
The aftermarket covers everything an OEM provides after the original sale: spare parts, repair, maintenance, upgrades, warranty, refurbishment and end-of-life services. Companies call this function by many names, including Aftermarket Services, Product Support, Lifecycle Services and Sustainment. In many industrial sectors it is the most profitable part of the business.
Read more: OEM Manufacturers
Five recur: disposition decisions made without economics, excess and obsolete inventory, returns with no clear cause, weak governance between policy and practice, and missing unit-level records. Each is costly on its own, and they compound because they share the same data gaps.
Read more: Five Problems
A serialized asset history is the complete record of one unit, identified by serial number: where it was built, shipped and installed, every service event, return, test result and disposition. It turns a fleet from a count of units into a set of individual histories that can explain failures, cost and value.
Read more: When No Trouble Found Becomes the Signal · The Birth of the Capital Management Program
A fielded unit's value is what it is worth in its best next use: continued service, redeployment, resale, part harvesting or material recovery, minus the cost of getting it there. That value changes with condition, demand and supply, so it should be measured per unit and per decision, not set once on a spreadsheet.
Read more: Revlogix
Service life extension keeps equipment in productive use longer through repair, refurbishment, upgrades or redeployment instead of replacement. It lowers capital spend and supply risk, but only pays off when the extended unit's reliability and support cost are known in advance.
Read more: Use Cases
Reverse logistics is everything that happens after a product comes back: collection, receiving, testing, repair, refurbishment, resale, part harvesting, recycling and disposal. For OEMs and operators, it decides whether a returned unit becomes recovered value or written-off cost.
Read more: Revlogix
An RMA, or return merchandise authorization, is the approval and tracking number issued when a customer returns a product for repair, replacement or credit. Each RMA is also a data point on product reliability, warranty cost and customer experience, if it is linked to the unit's serial history.
Read more: The Economics of the Return Decision
No trouble found is the result when a returned unit is tested and no fault is detected. NTF returns cost money in shipping, testing and replacement units, while the real cause, in the field or in the test, goes unexplained. High NTF rates are common in electronics and telecom equipment.
Read more: When No Trouble Found Becomes the Signal
When the same serial number, batch or site returns NTF again and again, that pattern is evidence. Linked to serialized asset history, it can point to installation problems, intermittent faults, test coverage gaps or misuse, and it creates technical accountability between field and lab.
Read more: When No Trouble Found Becomes the Signal
A disposition decision is the choice of what happens to a returned or retired unit: repair, refurbish, resell, harvest parts, recycle or dispose. The right choice depends on condition, demand, cost to process and recovered value. Made without economics, it defaults to habit or to the cheapest handling path.
Read more: The Circular Option Loses When No One Can Price It · Revlogix
Price each path for the specific unit before it moves: expected recovered value minus the cost to test, repair, ship and sell, adjusted for the risk the path fails. The best path differs by SKU and condition, so a single rule for a whole product line usually leaves value behind.
Read more: The Circular Option Loses When No One Can Price It · Using Atomic Status Transitions to Define the Optimal Pathway
Cost-to-serve is the full cost of handling a returned unit along a given path: transport, receiving, test, labor, parts, storage and resale or recycling fees. Comparing it with recovered value shows which returns create value and which only move cost around.
Read more: Cost Avoidance with Revlogix
Start by linking every return to its serial history and test result. That separates real failures from NTF, finds repeat offenders and shows which disposition paths recover value. Fewer unnecessary returns and better disposition together cut warranty cost more than tighter return policies alone.
Read more: The Economics of the Return Decision · Cost Avoidance with Revlogix
Customer premises equipment (CPE) is the hardware an operator places in a home or business: cable modems, gateways, Wi-Fi extenders, set-top boxes and fiber ONTs. Operators usually own it, so millions of units form an installed base that must be tracked, supported, recovered and redeployed.
Read more: CPE Producers · The Gateway You Already Own Is Now Your Most Strategic Inventory
In March 2026, a White House national security determination added foreign-produced routers to the FCC Covered List, restricting new equipment approvals. For operators, gateways already deployed or sitting in warehouses became harder to replace, which makes the existing fleet a strategic source of supply.
Read more: The Gateway You Already Own
When new units are restricted or delayed, every recovered, tested and refurbished gateway is supply an operator already owns. The installed base becomes a supply chain: units flow out of homes, through test and refurbishment, and back to new subscribers.
Read more: The Gateway You Already Own
It depends on the unit's model, condition, remaining support life and the cost of test and repair compared with a new unit's price and lead time. Deciding per unit, rather than per model line, usually recovers more fleet value and reduces new-unit purchases.
Read more: CPE Producers
Recovery happens at disconnects, upgrades, moves and swaps, through mail-back kits, store returns and technician pickups. Recovery rates vary widely, and every unit not returned is lost supply. Tracking each serial number from home to warehouse shows where units leak out.
Read more: Best Podcasts on Cable CPE, Broadband and Aftermarket Lifecycle
Returned units are received, tested and sorted. Good units are cleaned, reset and redeployed; repairable units are fixed; the rest are harvested for parts, resold or recycled. The value recovered depends on how quickly and accurately each unit is routed to its best path.
Read more: The Circular Option Loses When No One Can Price It
For CPE, the Product Racetrack is the loop a single gateway runs from subscriber to subscriber: deploy, recover, test, refurbish and redeploy. Each lap the operator completes without buying a new unit lowers cost per subscriber and supply risk.
Read more: The Gateway You Already Own
DOCSIS 4.0 upgrades bring new gateways into the field and push older units toward retirement. Operators must decide which existing models stay in service for lower tiers, which are redeployed elsewhere and which are recovered for parts or recycling.
Read more: CPE Producers
The Two Racetracks is Tallgrass's framework for two business models. The Customer Racetrack, or sales model, moves one customer from Product 1 to Product 2. The Product Racetrack, or circular model, moves one product from Customer 1 to Customer 2. Most companies are built for the first and run the second by accident.
Read more: The Gateway You Already Own
The Customer Racetrack measures success per customer: upgrades, renewals and share of wallet. The Product Racetrack measures success per unit: how many productive lives one product completes and what each lap costs. They need different metrics, systems and incentives.
Read more: The Gateway You Already Own
For B2B equipment, the circular economy means keeping products, parts and materials in use for as long as they hold value, through reuse, refurbishment, remanufacturing, part harvesting and recycling. For OEMs, it is less a sustainability program than a way to earn more from an installed base they already built.
Read more: The Circular Option Loses When No One Can Price It
Because no one can price it. When the value of reuse, harvest or resale is unknown at decision time, the safe default is a new unit or scrap. Circular paths win when every option is priced per SKU and per condition before the unit moves.
Read more: The Circular Option Loses When No One Can Price It
Remanufacturing restores a used product to like-new specification, often with a like-new warranty, by disassembling, cleaning, replacing worn parts and retesting. It differs from refurbishment, which restores function and appearance to a lower standard. Both depend on reliable cores coming back from the field.
Read more: Contract Manufacturers for Repair
It can be, when recovered value exceeds the cost to collect, process and resell, and when circular units do not simply cannibalize new sales. Profitability depends on unit-level economics, so it should be proven per product line rather than assumed.
Read more: The Circular Option Loses When No One Can Price It
Product-as-a-service sells the outcome or use of a product, such as uptime or connectivity, instead of the product itself. The manufacturer or operator keeps ownership, so every unit returns at the end of each term, and its lifecycle economics become the business model.
Read more: Platform
Excess and obsolete (E&O) inventory is stock a company holds beyond expected demand, or that can no longer be used or sold as intended. It ties up capital, takes warehouse space and usually ends in a write-down, often after the window to reuse or resell it has passed.
Read more: Five Problems · SKU Surfer
Judge each SKU on lifecycle profitability, not just sales velocity. Find substitutes that let slow parts serve other demand, and price every disposition path early, while units still have resale or reuse value. Waiting for the annual write-down is the most expensive option.
Read more: SKU Surfer
SKU rationalization reviews a product or parts portfolio to decide which items to keep, combine, substitute or retire. Done on lifecycle economics, it keeps low-volume parts that protect high-value service contracts and removes items that only add carrying cost.
Read more: SKU Surfer
Sales velocity measures how fast an item sells. Lifecycle profitability measures what it earns over its whole life, including the service, parts and retained customers it enables. A slow-moving spare part can be highly profitable if it keeps a fleet running under contract.
Read more: Extraordinary Valued Platforms
IT asset disposition is the secure, documented process of retiring IT and network equipment: data sanitization, testing, refurbishment, resale and certified recycling. For telecom and networking equipment, ITAD decides how much value and how much data risk leave the building with each unit.
Read more: ITAD
Controlled scrap is the documented destruction or recycling of a unit, used when reuse is impossible, unsafe or not allowed, for example for security or brand reasons. Done well, it proves what was destroyed, where and when, and recovers material value along the way.
Read more: The Circular Option Loses When No One Can Price It
Price them on what the part protects, not only on its cost: the service contract, uptime commitment or fleet it keeps running. As supply tightens near end of life, harvested parts from recovered units often become the cheapest and fastest source.
Read more: SKU Surfer
A Digital Product Passport is a digital record that travels with a product, holding its identity, composition, ownership, service history and end-of-life information. The EU is introducing DPPs by product group under its Ecodesign for Sustainable Products Regulation, starting with batteries.
Read more: Digital Product Passport
Manufacturers, importers and distributors placing regulated product groups on the EU market will need DPPs as each group's rules take effect. Batteries come first; electronics and other product groups follow in later delegated acts. Companies outside the EU that sell into it are covered too.
Read more: Digital Product Passport
Typically a unique product identifier, materials and substances, manufacturer and compliance information, repair and spare-part guidance, and recycling or disposal instructions. A passport built for lifecycle value also records ownership changes, service events and residual value as the unit moves.
Read more: Digital Product Passport
It gives every future owner, repairer and recycler the facts needed to reuse a product safely: what it is made of, what was done to it and what it is worth. Without that record, circular paths depend on guesswork, which makes them riskier and harder to price.
Read more: Digital Product Passport · The Circular Option Loses When No One Can Price It
Yes. The same unit-level record that satisfies a regulator can price disposition, speed warranty decisions, explain returns and support resale. Companies that treat the DPP as an operating record, not a filing, get value from it well before the rules require it.
Read more: Digital Product Passport
A unit-level record describes one physical item rather than a product model: its serial number, configuration, location, owner, condition and history. Most enterprise systems are built around models and SKUs, so unit-level records usually have to be assembled from several sources.
Read more: Five Problems · LPS
Tallgrass tracks assets across a seven-stage lifecycle, from creation through deployment, service and return to final recovery, so that each stage adds to one continuous record. Naming the stages makes it possible to measure time, cost and value between them. The seven stages are Make / Acquire / Recirculate, Deploy / Lifecycle Build, The Return Event, Asset Recovery, Reverse Operations, End-of-Life & Commoditization, and Value Generation.
Read more: Digital Product Passport
Decision science as a service delivers the analysis behind operating decisions, such as which path a unit takes, which part to stock or which return to investigate, as an ongoing service rather than a one-off project. Tallgrass describes its approach as "intelligence before motion, economics before commitment": price the decision before anything moves.
Read more: Platform
An optimal pathway is the sequence of status changes, such as received, tested, repaired, redeployed, that delivers the most value for a given unit at the lowest cost and risk. Defining it lets you measure every real path against the best one and see where value is lost.
Read more: Using Atomic Status Transitions to Define the Optimal Pathway
Atomic status transitions treat status as movement rather than a label: each change from one state to another is recorded as a single event with a time, place and cost. Measured this way, a process shows exactly where units wait, loop back or leak value.
Read more: Using Atomic Status Transitions to Define the Optimal Pathway
Process dark matter is the cost and delay that sit between recorded steps: waiting, rework, untracked handling and decisions made outside the system. It is invisible in standard reports but often larger than the measured work. Making it visible starts with recording every status transition.
Read more: Using Atomic Status Transitions · The Dark Matter of Governance
Write contracts, policies and rules as testable conditions, then compare them with the recorded events of the operation. Governance states intent; process data records reality. The gap between the two is measurable, and it is where compliance risk and lost value hide.
Read more: The Dark Matter of Governance · Applied Lifecycle Governance Series
Alert–Prescribe–Comply is an operating loop: detect a condition that needs action, prescribe the specific action, then measure whether it was carried out. It came out of the Capital Management Program, which used historical replay and serialized asset histories to make compliance measurable.
Read more: The Birth of the Capital Management Program
AI helps classify returns, predict failure and NTF likelihood, recommend disposition, match substitute parts and forecast demand for refurbished units. It works only as well as the unit-level data underneath it, which is why data normalization usually comes before any model.
Read more: AI Readiness Assessment
Give every AI recommendation an economic basis, an audit trail and a measurable outcome, and check decisions against policy and actual results. When AI routes physical units, an error moves real inventory, so governance has to be built into the workflow, not added later.
Read more: Applied Lifecycle Governance Series
Tallgrass provides decision science as a service for enterprises that move physical assets. Its platform turns installed-base, returns and inventory data into priced decisions, covering what to repair, redeploy, resell, harvest or retire, before anything moves. It serves OEMs, broadband operators and CPE producers, repair partners, recyclers and government programs.
LPS, the Lifecycle Product System, is Tallgrass's data layer. It turns mixed product and asset data from many systems into one canonical, decision-ready record for each product and unit. The other Tallgrass products build on that record.
Read more: LPS
SKU Surfer is Tallgrass's AI-driven tool for SKU rationalization, substitution and portfolio economics. It judges parts and products on lifecycle profitability rather than sales velocity, and prices every disposition path per SKU and per condition.
Read more: SKU Surfer · The Circular Option Loses When No One Can Price It
Revlogix is Tallgrass's reverse-logistics decision engine. It scores each disposition option, repair, refurbish, resell, harvest, recycle or dispose, against recovered value and cost-to-serve, so returned units take the path that recovers the most value.
Read more: Revlogix · Cost Avoidance with Revlogix
It tracks each asset's identity, composition, ownership, service history and residual value across a seven-stage lifecycle. It is aligned with the EU Digital Product Passport requirements and doubles as an operating record for disposition, warranty and resale decisions.
Read more: Digital Product Passport
All four share one data spine. LPS builds the canonical record, the Digital Product Passport carries it through the unit's life, SKU Surfer prices the portfolio and its disposition paths, and Revlogix routes returned units. Each decision adds history that improves the next.
Read more: Products · Extraordinary Valued Platforms
OEMs, CPE producers and broadband operators, contract repair manufacturers, recycling platforms, insurers, M&A teams, project-based organizations, government programs and ITAD providers: any organization that has to decide what happens to large numbers of physical assets over their lives.
Read more: Who We Serve · Industries