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Viewing articles tagged 'internet'

Actuators and Control Acting on the physical world.WHAT ACTUATORS DOConvert a signal into physical action: switching,... Addressing and Address Management Allocating addresses.WHAT THE TWO VERSIONS AREThe original, whose free pool is exhausted The... Anti-Spam Technology Filtering unwanted mail.WHAT TECHNIQUES EXISTConnection-level checks: reputation, reverse names,... Anycast Networking One address, many locations.WHAT IT ISThe same address announced from several locations, with... Applications and Industries: Everything That Matters, Briefly The summary.NEVER CONNECT TO SAFETY OR CONTROL SYSTEMS IN A WAY THAT CAN AFFECT THEMRead-only... Asset and Vehicle Tracking Knowing where things are.WHAT IS TRACKEDVehicles Containers and equipment High-value goods in... Authoritative DNS Server Design Serving a zone reliably.WHAT RELIABILITY REQUIRESSeveral servers On separate networks In separate... Automated Server Provisioning Building machines without hands.WHAT THE STAGES AREPowering on and booting from the network... Automating Data Centre Operations Reducing manual work.WHAT TO AUTOMATEProvisioning Configuration Monitoring registration Patching... Backup Infrastructure Systems that protect data.WHAT A BACKUP ISA separate copy, from a point in time, that the live... Bare-Metal Servers Physical machines without virtualisation.WHAT THEY PROVIDEAll of the hardware, with no hypervisor... BGP Security and Route Hijacking Protecting routing.WHAT THE FUNDAMENTAL WEAKNESS ISThe protocol was designed for a trusted... Building and Facility Monitoring Connected premises.WHAT IS MONITOREDTemperature and humidity Occupancy Door and window state... Building Applications for Connected Devices Phone and web interfaces.WHAT THE APPLICATION MUST DOShow device status Present data meaningfully... Building Gateway Software The bridge between devices and the network.WHAT A GATEWAY DOESConnects to local devices... Building Infrastructure for This Market Local operating realities.WHAT THE DEFINING CHALLENGE ISPower reliability.WHAT THAT... Building IoT Backends Services behind the platform.WHAT THE BACKEND PROVIDESBusiness logic beyond device management... Building IoT Products: Everything That Matters, Briefly The summary.VALIDATE THAT THE DATA CHANGES A DECISION BEFORE OPTIMISING ANY DEVICEUse... Business Models for IoT How connected products earn.WHAT THE MODELS AREHardware sold, with no ongoing service Hardware... Caching Systems Beyond the Edge Application and data caching.WHERE CACHING HAPPENSThe browser A delivery network A reverse proxy... Capacity Planning for Infrastructure Growing ahead of demand.WHAT TO MEASURECurrent use, per resource The growth trend Peak against... Cellular Connectivity for Devices Using mobile networks.WHAT IT PROVIDESCoverage wherever mobile service exists No dependence on... Certificate Management at Scale Automation and lifecycle.WHAT AUTOMATED ISSUANCE PROVIDESCertificates obtained and renewed... Certificate Security and Transparency Preventing misissuance.WHAT MISISSUANCE ISA certificate issued for a name to someone not entitled... Certificates and Public Key Infrastructure Establishing trust.WHAT A CERTIFICATE CONTAINSA public key The names it is valid for Validity... Certification and Compliance Meeting requirements.WHAT MAY BE REQUIREDRadio certification, for any transmitting device... Choosing a Connectivity Technology Matching network to need.WHAT TO ASSESSRange required Data volume and frequency Power available... Choosing an IoT Platform Where device data arrives.WHAT A PLATFORM PROVIDESDevice registry and identity Secure message... Choosing Between Building and Buying IoT Solutions Make or adopt.WHAT BUYING A COMPLETE SOLUTION PROVIDESSpeed Proven devices and platform Support... Comparing Virtualisation Platforms The main options.WHAT THE ESTABLISHED COMMERCIAL PLATFORM PROVIDESMature management Live... Configuring Caching Correctly Controlling what is stored and for how long.WHAT CONTROLS CACHINGResponse headers stating how... Connected Agriculture Devices on farms.WHAT IT MONITORSSoil moisture and temperature Weather at the field Water flow... Constraints That Shape IoT Design What limits the possible.WHAT POWER CONSTRAINSHow often a device can measure and transmit Which... Consumer Connected Devices Products for homes and individuals.WHAT THE CATEGORIES AREHome security and cameras Lighting and... Container Technology in Infrastructure Isolation without full virtualisation.WHAT A CONTAINER ISA process isolated by kernel features,... Control Panel Infrastructure The management layer.WHAT A CONTROL PANEL PROVIDESAccount provisioning File, database and mail... Costing an IoT Deployment Understanding the economics.WHAT THE ONE-OFF COSTS AREDevelopment Certification Tooling Initial... Data Centre Network Topologies How the internal network is arranged.WHAT THE TRADITIONAL ARRANGEMENT WASThree tiers: access,... Data Centre Networking: Everything That Matters, Briefly The summary.MODERN DESIGNS OPTIMISE FOR TRAFFIC BETWEEN MACHINES, NOT IN AND OUTMeasure actual... Data Centre Security Controls Protecting the facility and its systems.WHAT PHYSICAL CONTROLS COVERPerimeter, building, zone,... Database and Data Replication Keeping copies consistent.WHAT REPLICATION DOESMaintains copies of data on several systems.WHAT... Deciding Whether IoT Is the Right Answer Assessing a proposed system.WHAT TO ASKWhat is being measured, and why What decision changes How... Declaring Infrastructure in Version Control Declaring infrastructure in files.WHAT IT MEANSInfrastructure defined in files, versioned,... Delivering Commands to Devices Sending instructions.WHAT MAKES IT HARDER THAN SENDING DATAThe device may be asleep,... Delivery and Caching: Everything That Matters, Briefly The summary.A LOW CACHE HIT RATE MEANS THE DELIVERY NETWORK IS ACHIEVING LITTLEQuery strings... Designing for Limited Bandwidth Sending less.WHAT TO TRANSMITChanges, not states Exceptions, not routine values Summaries, not... Designing High Availability Clusters Continuing through failure.WHAT A CLUSTER ISSeveral machines cooperating so that a service... Designing Message Payloads What devices send.WHAT EVERY MESSAGE NEEDSA device identifier A timestamp The measurement and its... Designing Setup and Pairing Flows The first five minutes.WHY IT MATTERS DISPROPORTIONATELYA device that will not set up is... Detecting Problems in Device Data Finding what matters.WHAT TO DETECTValues outside safe ranges Rates of change that are... Developing an IoT Product The full undertaking.WHAT IT INVOLVESHardware design or selection Firmware Connectivity... Device Identity and Provisioning Getting devices into service.WHAT IDENTITY REQUIRESA unique identifier per device Credentials... Device Lifecycle Management From deployment to retirement.WHAT THE STAGES AREManufacture and provisioning Deployment and... Device Shadows and State Representing devices remotely.WHAT A SHADOW ISA stored representation of a device's state,... Diagnosing Device Problems Remotely Fixing what you cannot touch.WHAT MAKES IT DIFFICULTNo physical access Limited visibility... Disaster Recovery Planning Preparing for serious loss.WHAT DISASTER RECOVERY ADDRESSESLoss of a site, a system, or data,... DNS Architecture in Depth How resolution actually works.WHAT THE HIERARCHY ISRoot servers, knowing where each top-level... DNS Architecture: Everything That Matters, Briefly The summary.PROPAGATION IS CACHES EXPIRING, NOT DATA SPREADINGThere is nothing to accelerate.... DNS Security Threats What goes wrong.CACHE POISONINGInjecting false data into a resolver's cache, directing users... Documenting Network and Infrastructure Estates Recording what exists and why.WHAT TO DOCUMENTWhat systems exist, and what each is for How they... Email Authentication Records Proving mail is legitimate.WHAT THE THREE MECHANISMS AREA record declaring which servers may send... Email Deliverability Getting mail accepted.WHAT DETERMINES WHETHER MAIL ARRIVESThe sending address's reputation The... Email Infrastructure: Everything That Matters, Briefly The summary.REJECT AT THE TRANSACTION RATHER THAN ACCEPTING AND BOUNCINGAccepting then bouncing... Enabling Modern Protocols Practical deployment.WHAT IS REQUIREDA server supporting the protocol Encryption, which both... Enclosures and Environmental Protection Surviving where deployed.WHAT THE ENVIRONMENT PRESENTSTemperature extremes Humidity and... Energy and Power Monitoring Measuring electricity.WHAT IT MEASURESConsumption, by circuit or device Voltage and quality... Estimating IoT Projects Planning realistically.WHY ESTIMATES ARE FREQUENTLY WRONGHardware iterations take weeks each... Firmware Architecture for Connected Devices Structuring device software.WHAT THE LAYERS TYPICALLY AREHardware abstraction, wrapping... Handling Abuse and Compromised Accounts Responding to problems on your network.WHAT ABUSE LOOKS LIKEOutbound mail floods Phishing pages... Handling Disconnection Operating without a network.WHAT TO ASSUMEConnectivity is intermittent.WHAT THE DEVICE MUST... Handling Errors on Unattended Devices Recovering without help.WHAT ERRORS OCCURSensor read failures Communication failures Storage... Hardware and Software RAID Where the work happens.WHAT HARDWARE RAID ISA dedicated controller managing the array.WHAT IT... Healthcare and Wearable Devices Devices measuring people.WHAT IS MEASUREDActivity and movement Heart rate Sleep Location, for... High Availability and Recovery: Everything That Matters, Briefly The summary.A PASSIVE NODE THAT HAS NEVER SERVED MAY NOT WORK WHEN NEEDEDTest failover... High Availability for Front-End Services Removing single points of failure.WHAT THE PROBLEM ISA load balancer distributing traffic is... How Content Delivery Networks Work Serving from close to the user.WHAT THEY AREDistributed networks of servers holding copies of... How Email Infrastructure Works The components and the flow.WHAT THE COMPONENTS AREA submission service, accepting mail from... How Internet Service Providers Are Built The provider network.WHAT A PROVIDER NETWORK CONSISTS OFAccess: how customers connectAggregation:... How TLS Works Encrypting connections.WHAT IT PROVIDESConfidentiality: traffic cannot be readIntegrity: traffic... Industrial IoT Connected manufacturing and process industries.WHAT IT MONITORSMachine condition: vibration,... Infrastructure Change Management Controlling what is altered.WHY IT MATTERSMost infrastructure incidents follow a change.WHAT... Infrastructure Incident Response When something breaks.WHAT TO DO FIRSTEstablish scope: what is affected, and who.WHAT TO DO... Infrastructure Monitoring and Alerting Knowing the state of everything.WHAT TO MONITORAvailability, from outsideCapacity: processor,... Ingesting Device Data Receiving at volume.WHAT THE INGESTION PATH MUST DOAuthenticate the device Accept the message... Installation and Field Deployment Getting devices into place.WHAT DETERMINES SUCCESSPlacement Correct configuration Verified... Integrating IoT Data With Business Systems Making data useful elsewhere.WHY IT MATTERSDevice data in isolation supports little; combined... Internet and Advanced Infrastructure: Everything That Matters, Briefly The whole category in one page.ROUTING IS POLICY BEFORE IT IS GEOGRAPHYThe commercially preferred... Internet Architecture: Everything That Matters, Briefly The summary.ROUTING IS POLICY BEFORE IT IS GEOGRAPHYThe shortest path is not chosen; the... Internet Exchange Points Where networks meet.WHAT AN EXCHANGE POINT ISA facility where many networks connect to a shared... Internet of Things: Everything That Matters, Briefly The whole category in one page.DATA NOBODY ACTS ON PRODUCES NOTHINGEstablish what decision... IoT Connectivity: Everything That Matters, Briefly The summary.ESTABLISH THE DATA REQUIREMENT BEFORE CHOOSING A TECHNOLOGYHow many bytes, how often.... IoT Device Management: Everything That Matters, Briefly The summary.UNIQUE CREDENTIALS PER DEVICE, ALWAYSA shared credential means compromising one... IoT Foundations: Everything That Matters, Briefly The summary.ESTABLISH WHAT DECISION THE DATA CHANGES BEFORE DEPLOYING ANYTHINGData nobody acts on... IoT Opportunities in the Nigerian Context Local applications and constraints.WHAT PROBLEMS ARE REAL AND MEASURABLEPower cost and generator... IoT Security: Everything That Matters, Briefly The summary.A COMPROMISED SENSOR LEAKS INFORMATION; A COMPROMISED ACTUATOR CAUSES EVENTSWhich is... IoT Software: Everything That Matters, Briefly The summary.ABSTRACT HARDWARE SO LOGIC CAN BE TESTED WITHOUT ITHardware changes during a... Learning IoT Development Building capability.WHAT TO START WITHA development board and a sensor.WHAT TO BUILD FIRSTA... Load Balancing Fundamentals Distributing traffic.WHAT IT DOESDistributes requests across several servers, and stops sending... Logging and Telemetry From Devices Knowing what happened.WHAT TO DISTINGUISHTelemetry: the measurements the system exists to... Low-Power Wide-Area Networks Long range on little power.WHAT THEY PROVIDEKilometres of range Battery life measured in years... Mail Access Protocols How users read mail.WHAT THE TWO APPROACHES AREOne downloading messages and typically removing... Mail Server Operations Running mail reliably.WHAT TO MONITORQueue size and age Deferred mail Rejection rates... Managing Address Reputation Keeping your network trusted.WHY IT MATTERSYour addresses carry a reputation, and a poor one... Managing Configuration Across a Fleet Changing settings at scale.WHAT IS TYPICALLY CONFIGUREDReporting intervals Thresholds Server... Managing Device Memory and Resources Working within tight limits.WHAT MEMORY EXISTSProgram storage, holding firmware Volatile working... Manufacturing Considerations Making devices at volume.WHAT CHANGES AT VOLUMEAssembly cost matters Testing must be fast... Measuring and Diagnosing Internet Paths Finding where the problem is.WHAT TO ESTABLISH FIRSTWhether the problem affects one destination... Migrating Customers Between Servers Moving accounts without disruption.WHY IT HAPPENSHardware replacement Rebalancing load Upgrading... Modern DNS Privacy and Transport Encrypted resolution.WHAT THE PROBLEM ISTraditional DNS queries are sent unencrypted and visible... Monitoring a Hosting Fleet Watching many machines.WHAT TO MONITOR PER MACHINEAvailability, from outside Load, memory,... Monitoring Device Fleets Knowing what is happening.WHAT TO MONITOR PER DEVICELast contact time Battery or power status... Monitoring Network Infrastructure Watching the fabric.WHAT TO MONITORLink status and utilisation Error, discard and retransmission... MQTT in Practice Practical use.WHAT A LAST WILL MESSAGE ISA message the broker publishes if a device disconnects... Network Attached Storage Storage served over a network.WHAT IT ISStorage presented as file shares over a network.WHAT... Network Automation Configuring at scale.WHY MANUAL CONFIGURATION FAILS AT SCALEDevices drift apart, mistakes are... Network Segmentation Separating traffic.WHY IT MATTERSFlat networks allow anything to reach anything, so one... Operating an IoT Service Running it over years.WHAT ONGOING OPERATION INVOLVESMonitoring the fleet Supporting customers... Operating DNSSEC Safely Avoiding self-inflicted outages.WHAT CAUSES MOST DNSSEC OUTAGESExpired signatures Key rollover... Orchestrating Containers at Infrastructure Scale Running containers at scale.WHAT ORCHESTRATION PROVIDESScheduling containers across machines... Other IoT Protocols Alternatives and their uses.WHAT CONSTRAINED APPLICATION PROTOCOLS PROVIDEA request-and-response... Out-of-Band Management Networks Reaching equipment when the network fails.WHAT IT ISA separate network reaching management... Outbound Mail Abuse Control Preventing your servers becoming a source.WHY IT MATTERS MOST TO A HOSTING PROVIDEROne... Planning Device Maintenance Keeping a fleet working.WHAT REQUIRES INTERVENTIONBattery replacement Sensor calibration or... Platforms and Data: Everything That Matters, Briefly The summary.CALCULATE COST PER DEVICE PER YEAR AT PROJECTED SCALEPer-message charges accumulate... Power and Deployment: Everything That Matters, Briefly The summary.RADIO TRANSMISSION DOMINATES POWER CONSUMPTIONReducing transmissions extends life... Power Budgeting for Devices Making batteries last.WHAT CONSUMES POWERRadio transmission, overwhelmingly Processing Sensors... Power Sources and Energy Harvesting Where devices get energy.WHAT OPTIONS EXISTPrimary batteries, not rechargeable Rechargeable... Presenting Device Data Interfaces for operators.WHAT USERS NEED TO SEECurrent status, immediately What requires... Privacy in Connected Devices Data about people.WHAT DEVICES MAY REVEALPresence and occupancy Routines and habits Location and... Processing Device Data Turning readings into information.WHAT PROCESSING TYPICALLY DOESConverts raw values to meaningful... Protecting Against Volumetric Attacks Absorbing floods.WHAT THEY AREAttempts to overwhelm a service or its connection with traffic.WHY... Protocols and Messaging: Everything That Matters, Briefly The summary.DESIGN THE TOPIC HIERARCHY CONSISTENTLY AND NEVER PUT VALUES IN ITSubscribers rely on... Protocols and Transport: Everything That Matters, Briefly The summary.EACH HTTP VERSION ADDRESSED THE BOTTLENECK THE LAST ONE EXPOSEDVersion two removed... Recursive Resolver Operation Serving queries for clients.WHAT A RESOLVER DOESAccepts queries, performs resolution, caches... Redundancy for Hosting Services Removing single points of failure.WHAT TO IDENTIFYEvery component whose failure affects... Resource Isolation on Shared Servers Keeping customers apart.WHAT TO LIMIT PER ACCOUNTProcessor time Memory Concurrent processes... Responding to IoT Security Incidents When devices are compromised.WHAT TO ESTABLISH FIRSTScope: which devices, and what they can... Retail and Logistics Applications Connected commerce.WHAT IS MONITOREDStock levels Cold storage temperature Shipment location and... Running a Hosting Platform: Everything That Matters, Briefly The summary.PER-ACCOUNT LIMITS ARE WHAT MAKE SHARED HOSTING WORKWithout them one site under load... Running an IoT Pilot Proving before scaling.WHAT A PILOT SHOULD ESTABLISHThat the data is accurate That devices... Running BIND The established nameserver.WHAT IT ISThe most widely deployed nameserver, capable of both... Running Dovecot Mail storage and access.WHAT IT ISA server providing mail access, with mailbox storage and... Running Exim An alternative transfer agent.WHAT IT ISA transfer agent with a single configuration file and a... Running Postfix A widely used transfer agent.WHAT IT ISA modular transfer agent, designed for security and... Running PowerDNS A database-backed nameserver.WHAT DISTINGUISHES ITSeparation of the authoritative server, the... Scaling a Hosting Platform Growing the infrastructure.WHAT CONSTRAINS GROWTH FIRSTStorage performance, usually.WHAT ELSE... Scaling an IoT Backend Growing with the fleet.WHAT GROWSMessage volume, linearly with devices Storage, continuously... Securing Device Communications Protecting data in transit.WHAT TO USEEncrypted transport, always.WHAT CONSTRAINED DEVICES MAY... Securing Device Identity Proving which device is which.WHAT IS REQUIREDA unique identity per device Credentials that... Securing IoT Networks Protecting the surrounding environment.WHAT TO SEPARATEDevice networks from other... Securing the Device Itself Physical and local protection.WHAT TO DISABLE BEFORE SHIPPINGDebug and programming interfaces... Selecting Hardware Choosing components.WHAT TO ESTABLISHProcessing required Memory required Connectivity needed... Selling IoT to Businesses Commercial conversations.WHAT BUYERS ACTUALLY WANTA problem solved, not devices.WHAT TO LEAD... Sensors and What They Measure Reading the physical world.WHAT COMMON SENSORS MEASURETemperature and humidity Light Motion and... Session Persistence and Stateless Design Handling state behind a balancer.WHAT THE PROBLEM ISA user's requests may reach different... Shared Hosting Architecture How shared hosting is built.WHAT IT ISMany customers' sites served from one machine, isolated... Simulating Devices for Development Building without hardware.WHY IT MATTERSHardware is limited, slow to flash, and unavailable... Skills for IoT Work What the field requires.WHAT IS TECHNICALLY REQUIREDEmbedded programming, usually in C... Smart Metering and Utility Applications Measuring supply to customers.WHAT SMART METERS DORecord consumption at intervals Report... SMTP in Practice The transfer protocol.WHAT IT DOESTransfers mail between servers, and accepts it from... Standards and Interoperability Devices working together.WHY IT MATTERSCustomers resist devices that work only with one vendor's... Storage Area Networks Block storage over a network.WHAT IT ISStorage presented as block devices, as though locally... Storage Infrastructure: Everything That Matters, Briefly The summary.RAID IS NOT A BACKUPIt protects against drive failure, not deletion, corruption,... Storage Performance and Capacity Planning Sizing and measuring.WHAT TO MEASUREOperations per second Throughput Latency Queue depthWHAT... Storing Time-Series Data Where readings live.WHAT MAKES THIS DATA DISTINCTIVEIt is append-only It is queried by time range... Supporting IoT Customers After deployment.WHAT CUSTOMERS CONTACT ABOUTDevices showing offline Readings they believe are... Sustainability and Electronic Waste The environmental dimension.WHAT THE PROBLEM ISDevices deployed in large numbers, with limited... Switching and Fabric Design Building the internal network.WHAT A TOP-OF-RACK SWITCH DOESConnects the servers in one rack, and... Testing and Verifying Backups Proving they work.WHY IT MATTERS MOSTAn untested backup is an assumption, and the assumption... Testing Firmware Automatically Verification without hands.WHAT TO TEST ON A DEVELOPMENT MACHINELogic, with hardware abstracted... Testing IoT Systems Verifying before and after deployment.WHAT TO TEST ON THE BENCHFunction Power consumption,... The Evolution of HTTP From one version to the next.WHAT THE ORIGINAL VERSION DIDOne request per connection, then the... The Shape of an IoT System How the parts fit together.WHAT THE LAYERS AREPerception: sensors and actuatorsDevice: processing... The Structure of the Internet Networks of independent networks.WHAT IT ISTens of thousands of independently operated networks,... Time and Synchronisation Knowing when things happened.WHY IT MATTERSReadings without reliable time cannot be ordered,... Understanding BGP The protocol that holds the internet together.WHAT IT DOESExchanges reachability information... Understanding DNSSEC Authenticating DNS responses.WHAT PROBLEM IT SOLVESDNS responses can be forged, and there is... Understanding HTTP/2 Multiplexing over one connection.WHAT IT PROVIDESSeveral concurrent streams over a single... Understanding Internet Capacity and Congestion Where slowness comes from.WHAT DETERMINES PERCEIVED SPEEDBandwidth: how much can be... Understanding MQTT The dominant IoT messaging protocol.WHAT IT ISA lightweight publish-and-subscribe protocol... Understanding QUIC and HTTP/3 A new transport.WHAT QUIC ISA transport protocol built on datagrams, providing reliability,... Understanding RAID Combining drives.WHAT IT DOESCombines several drives for capacity, performance, resilience, or a... Understanding Reverse Proxies A server in front of servers.WHAT IT ISA server accepting requests on behalf of backends, and... Understanding Server Virtualisation Machines within machines.WHAT IT ISRunning several complete operating systems on one physical... Understanding Transit and Peering How networks exchange traffic.WHAT TRANSIT ISPaying a larger network to carry your traffic to the... Updating Devices Remotely Changing software in the field.WHY IT IS ESSENTIALVulnerabilities are found, and unpatchable... Versioning Firmware and Protocols Managing change across a fleet.WHAT WILL ALWAYS BE TRUESeveral firmware versions in the field... Virtual Machine Management Day-to-day operation.WHAT TO STANDARDISETemplates, from which machines are created Naming... Virtual Private Servers Selling virtual machines.WHAT A VPS ISA virtual machine sold to a customer, with root access.WHAT... Virtualisation: Everything That Matters, Briefly The summary.OVERCOMMIT PROCESSORS MODERATELY AND MEMORY VERY CAUTIOUSLYExhausting memory causes... Water and Environmental Monitoring Measuring resources and conditions.WHAT IS MONITOREDTank and reservoir levels Flow through pipes... Web Application Firewalls and Edge Security Filtering at the edge.WHAT A WEB APPLICATION FIREWALL DOESInspects requests and blocks those... What the Internet of Things Is Physical things reporting and acting.WHAT IT MEANSPhysical objects with sensors, processing and... Why IoT Security Is Different The distinctive risks.WHAT MAKES IT HARDERDevices are physically accessible They are numerous and... Wireless Local Connectivity Short-range options.WHAT WIRELESS NETWORKING PROVIDESHigh data rates Existing infrastructure in... Working Across Hardware and Software Teams Collaboration in IoT.WHAT CAUSES FRICTIONDifferent timescales: hardware changes take weeks,... Working in IoT: Everything That Matters, Briefly The summary.BREADTH MATTERS MORE HERE THAN IN MOST FIELDSProblems cross the hardware and software... Working With Hardware Suppliers Sourcing and partnership.WHAT SUPPLIERS PROVIDEComponents Modules Contract manufacturing Complete... Writing an IoT Proposal Documenting what you will deliver.WHAT TO STATE CLEARLYThe problem, as the client described it... Writing Reliable Device Code Code that runs for years unattended.WHAT RELIABILITY REQUIRESNo path that halts No memory growth...
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