GITNUXSOFTWARE ADVICE
SecurityTop 10 Best Cctv Management Software of 2026
Top 10 Cctv Management Software ranking for centralized CCTV control, comparing Genetec Security Center, Milestone XProtect, and Avigilon Alta.
How we ranked these tools
Core product claims cross-referenced against official documentation, changelogs, and independent technical reviews.
Analyzed video reviews and hundreds of written evaluations to capture real-world user experiences with each tool.
AI persona simulations modeled how different user types would experience each tool across common use cases and workflows.
Final rankings reviewed and approved by our editorial team with authority to override AI-generated scores based on domain expertise.
Score: Features 40% · Ease 30% · Value 30%
Gitnux may earn a commission through links on this page — this does not influence rankings. Editorial policy
Editor’s top 3 picks
Three quick recommendations before you dive into the full comparison below — each one leads on a different dimension.
Genetec Security Center
Security Center Omnicast with event-based video search and correlated investigations
Built for organizations needing centralized CCTV management with cross-system event correlation.
Milestone XProtect
Editor pickXProtect Smart Client with Advanced Incident and event workflows for investigation
Built for large security teams managing multi-site CCTV with centralized governance.
Avigilon Alta
Editor pickAlta AI event search with analytics-driven playback for faster incident review
Built for organizations using Avigilon cameras needing AI search and centralized multi-site monitoring.
Related reading
Comparison Table
The comparison table benchmarks CCTV management platforms by integration depth across VMS, NVR, and access control, plus each system’s data model and schema handling for events, assets, and analytics. It also maps automation and API surface for provisioning, configuration management, and extensibility, alongside admin and governance controls such as RBAC, audit logs, and review workflows.
Genetec Security Center
enterprise VMSProvides centralized video management with integrated access control and intrusion monitoring across compatible IP video systems.
Security Center Omnicast with event-based video search and correlated investigations
Genetec Security Center stands out for unifying access control, video surveillance, and automatic license plate recognition in a single system view. The platform supports centralized video management with multi-site architecture, role-based workflows, and event-driven correlation across connected systems.
It also emphasizes interoperability through open integrations and strong support for ONVIF-class camera discovery and device management. For CCTV management, it delivers centralized live viewing, recording management, and advanced search capabilities tied to system events.
- +Unified operations across video, access control, and ALPR in one dashboard
- +Advanced video search using metadata and correlated events
- +Strong multi-site management with consistent configuration workflows
- –Complex deployment and configuration for large, mixed-vendor environments
- –Interface depth can slow daily use without training
- –Some advanced capabilities depend on integrated system licensing and modules
Security operations teams
Unified live monitoring and event search
Faster evidence collection
Critical infrastructure security
Role-based workflows for gate and video
Reduced unauthorized access review
Show 2 more scenarios
Traffic and parking enforcement
ALPR-driven incident investigation workflows
Quicker plate-related casework
Investigators search recordings by license plate events and jump to relevant moments in video.
IT and system integrators
Camera onboarding through ONVIF device management
Lower integration effort
Integrators discover and manage ONVIF-class cameras while maintaining consistent configuration across sites.
Best for: Organizations needing centralized CCTV management with cross-system event correlation
More related reading
Milestone XProtect
enterprise VMSDelivers scalable IP video management and surveillance recording with unified management for multi-site CCTV deployments.
XProtect Smart Client with Advanced Incident and event workflows for investigation
Milestone XProtect stands out for broad support of video hardware and server roles, from single-site deployments to distributed multi-server systems. It delivers recording, live viewing, and integrated event management through modular components that administrators can scale across cameras and locations.
The platform also supports analytics workflows, incident handling, and centralized management for large video estates with consistent configuration. Strong interoperability and mature enterprise tooling make it well suited for security operations that need consistent monitoring, investigations, and auditability.
- +Strong camera and encoder integration with broad hardware compatibility
- +Scalable architecture for multi-site video management and centralized configuration
- +Robust event and alarm workflows that support investigation and response
- +Enterprise-grade role-based access and audit-friendly operational controls
- +Flexible recording and retention policies aligned to security needs
- –Administration can feel complex due to many configuration and role options
- –Feature depth often requires trained operators and system engineers
- –Analytics and integrations vary by hardware and installed modules
Security operations center analysts
Investigate alarms with recorded evidence
Faster incident investigation
Corporate security administrators
Standardize monitoring across multiple sites
Consistent site monitoring
Show 2 more scenarios
System integrators for enterprises
Deploy scalable video across estates
Repeatable enterprise deployments
Modular server roles support larger camera counts and complex architectures without changing core workflows.
Compliance and audit teams
Produce traceable access and event logs
Audit-ready event records
Recorded events and managed access enable review trails for internal investigations and audit requirements.
Best for: Large security teams managing multi-site CCTV with centralized governance
Avigilon Alta
AI video managementManages AI-ready surveillance with cloud and on-prem video recording, search, and analytics for compatible cameras and systems.
Alta AI event search with analytics-driven playback for faster incident review
Avigilon Alta stands out by focusing on cloud-connected, AI-enabled video management built around Avigilon camera and analytics workflows. It centralizes live viewing, recording management, and event-driven playback for multiple sites under a single operational view.
The system supports smart search and analytics workflows that reduce manual scrubbing through footage. Administration and configuration can rely on camera capabilities and predefined analytics pipelines rather than custom development.
- +AI-assisted event search speeds up investigations versus timeline-only review
- +Centralized multi-site monitoring streamlines operator workflows
- +Event playback ties analytics output to recorded footage for faster triage
- –Advanced configuration requires familiarity with analytics and camera settings
- –Full value depends on compatible Avigilon camera and analytics features
- –Granular role controls can feel restrictive for complex admin teams
Security operations center analysts
Correlate alerts across multiple camera sites
Reduced investigation review time
Regional facilities managers
Oversee recording health and storage remotely
Fewer missed recording events
Show 2 more scenarios
Enterprise IT and system administrators
Standardize video analytics deployment
Lower admin workload
Administrators rely on predefined analytics workflows and camera capabilities to minimize per-site customization.
Retail store loss-prevention teams
Investigate suspicious activity using AI events
Faster evidence retrieval
Teams jump directly to relevant clips using analytics-driven searches rather than manual scrubbing.
Best for: Organizations using Avigilon cameras needing AI search and centralized multi-site monitoring
More related reading
Hikvision HikCentral
VMS platformCentralizes CCTV management, live viewing, recording, and event handling for large multi-site Hikvision camera networks.
Unified alarm and event management tied to centralized search and playback
Hikvision HikCentral stands out with centralized device, event, and user management for Hikvision camera and video ecosystem deployments. It supports multi-site operations through hierarchical management, role-based access, and workflow-oriented monitoring that fits control-room use.
The core capabilities include live viewing, alarm/event handling, video playback, and centralized system health across managed endpoints. Strong integration with Hikvision hardware and applications makes it a strong choice for standardized surveillance stacks that need unified operations.
- +Centralized device and user management for Hikvision camera and NVR estates
- +Event and alarm workflows link monitoring, playback, and investigation tasks
- +Multi-site hierarchy supports larger estates with consistent governance
- +Role-based access control supports separation of duties across teams
- +Centralized health and status views reduce operational blind spots
- –Best outcomes depend on Hikvision-native hardware integration
- –Interface setup and permissions tuning can be time-consuming
- –Advanced workflows still require careful system design to avoid noise
Best for: Security integrators managing multi-site Hikvision camera estates and control rooms
Hanwha Vision Wisenet Viewer
camera ecosystem VMSSupports surveillance monitoring, recording, and playback for Wisenet IP camera ecosystems with centralized system management.
Event-oriented playback navigation tightly integrated with Wisenet recordings
Hanwha Vision Wisenet Viewer stands out for its tight focus on Hanwha Vision camera ecosystems and video management workflows. It supports live viewing, camera control, and multi-channel monitoring that suits day-to-day CCTV supervision.
It also provides common management utilities like playback, search, and event-oriented navigation when recordings are available from the connected system. The tool is strongest as a viewer layer for Hanwha deployments rather than a universal cross-vendor CCTV management center.
- +Solid live viewing and multi-channel monitoring for Hanwha camera setups
- +Playback and search tools fit typical CCTV investigations and daily checks
- +Camera control integration supports fast adjustment during incidents
- +Event navigation streamlines jumping to relevant recorded moments
- –Limited usefulness outside Hanwha Vision device environments
- –Management depth is less robust than full-feature enterprise video platforms
- –Advanced configuration can feel rigid compared with more flexible VMS tools
- –Scalability features feel constrained for large multi-site deployments
Best for: Hanwha-focused sites needing monitoring and playback without heavy VMS administration
Dahua SmartPSS
VMS client suiteEnables centralized CCTV live viewing, recording management, and playback for Dahua IP camera installations.
Dahua system event and alarm management with centralized operator workflows
Dahua DSS Pro stands out as a Dahua ecosystem CCTV management suite built to centralize monitoring, playback, and system health across multiple devices. Core capabilities include live view, video playback from supported recorders, user management, and task-based operations like event and alarm handling. The platform targets structured deployments where Dahua cameras and recorders feed a single management workflow with consistent device control.
- +Centralized live view and playback across supported Dahua recorders
- +Event and alarm workflows align with CCTV operational monitoring needs
- +Role-based access controls support controlled operator environments
- –Best results depend on Dahua hardware compatibility and supported models
- –Workflow setup can feel heavy for small teams managing few cameras
- –Advanced configuration complexity can slow rollout without trained admins
Best for: Integrators and security teams managing multi-site Dahua camera deployments
More related reading
Dahua DSS Pro
enterprise VMSProvides a centralized video management platform for monitoring and recording across Dahua IP cameras and devices.
Dahua system event and alarm management with centralized operator workflows
Dahua DSS Pro stands out as a Dahua ecosystem CCTV management suite built to centralize monitoring, playback, and system health across multiple devices. Core capabilities include live view, video playback from supported recorders, user management, and task-based operations like event and alarm handling. The platform targets structured deployments where Dahua cameras and recorders feed a single management workflow with consistent device control.
- +Centralized live view and playback across supported Dahua recorders
- +Event and alarm workflows align with CCTV operational monitoring needs
- +Role-based access controls support controlled operator environments
- –Best results depend on Dahua hardware compatibility and supported models
- –Workflow setup can feel heavy for small teams managing few cameras
- –Advanced configuration complexity can slow rollout without trained admins
Best for: Integrators and security teams managing multi-site Dahua camera deployments
Axis Camera Station
midmarket VMSOffers network video management for Axis IP cameras, including live viewing and recording with system health features.
Axis event search with motion and device events tied directly to recordings
Axis Camera Station stands out for its tight integration with Axis-branded cameras and its pragmatic approach to multi-camera recording, playback, and live monitoring. Core capabilities include video recording with motion-based and continuous schedules, camera discovery, and client-side map and layout views for day-to-day operations.
The platform supports user management, event handling, and exportable evidence workflows built around recorded clips and system events. It also has clear limits for non-Axis deployments and advanced enterprise use cases that require deeper VMS federation or sophisticated analytics beyond Axis camera features.
- +Strong Axis camera integration for reliable setup and stable live viewing
- +Event-driven recording and scheduled recording options for flexible monitoring policies
- +Fast search, playback, and export of recorded clips for evidence workflows
- +User and permission management supports role-based access in multi-user sites
- –Best results depend on Axis camera support rather than broad third-party coverage
- –Advanced analytics and enterprise-scale features lag dedicated VMS leaders
- –Distributed multi-site workflows require more design work than centralized platforms
Best for: Sites using Axis cameras that need dependable recording, playback, and evidence export
More related reading
OpenEye Optix
cloud-ready VMSCentralizes video management and analytics for compatible security systems with operator tools for search and playback.
Optix analytics event search that turns detection into review-ready investigation timelines
OpenEye Optix stands out for its focus on video analytics enablement and operator workflows built around surveillance management use cases. It combines recording and monitoring with an analytics-driven interface that supports searching events and managing camera health tasks.
The platform is designed to connect with compatible cameras and edge recorders so teams can centralize monitoring and operational review. It is best evaluated by how well its analytics and search reduce investigation time across distributed sites.
- +Analytics-focused event workflows speed up investigation from alerts to evidence
- +Strong camera management capabilities help standardize monitoring across sites
- +Search and review workflows reduce manual scrubbing for incident timelines
- –Analytics setup and tuning can be complex for smaller teams
- –Interface navigation feels heavier than simpler NVR centric tools
- –Best results depend on compatible device support and proper integration
Best for: Security teams managing multiple cameras needing analytics-driven investigation workflows
Robert Bosch Video Management System
enterprise VMSProvides centralized CCTV management with recording, access workflows, and integration for Bosch security camera systems.
Alarm and event handling tied to Bosch camera events for workflow-driven response
Bosch Video Management System centers on unified management for Bosch IP video devices, with event-driven workflows and centralized monitoring. The platform supports multi-site and multi-camera layouts for operators who need consistent configuration and health visibility. It also provides alarm handling and recording management designed for security operations that prioritize auditability and control over capture behavior.
- +Strong Bosch device integration for cameras, encoders, and access to status data
- +Centralized recording and alarm handling supports consistent security workflows
- +Multi-monitor control and operator-focused layouts help manage larger camera estates
- –Interface and setup complexity can slow initial deployment for new teams
- –Best results depend on Bosch-centric device ecosystems and configurations
- –Advanced use cases require careful design to avoid operational clutter
Best for: Multi-camera security teams using Bosch IP devices for centralized monitoring and recording
Conclusion
After evaluating 10 security, Genetec Security Center stands out as our overall top pick — it scored highest across our combined criteria of features, ease of use, and value, which is why it sits at #1 in the rankings above.
Use the comparison table and detailed reviews above to validate the fit against your own requirements before committing to a tool.
How to Choose the Right Cctv Management Software
This guide covers how to select CCTV management software across Genetec Security Center, Milestone XProtect, Avigilon Alta, Hikvision HikCentral, Hanwha Vision Wisenet Viewer, Dahua SmartPSS, Dahua DSS Pro, Axis Camera Station, OpenEye Optix, and Robert Bosch Video Management System. Each tool is mapped to integration depth, data model behavior, automation and API surface expectations, and admin and governance controls.
Focus stays on cross-vendor or single-vendor fit, event-to-video investigation workflows, and how administration scales across multi-site estates. The decision guidance highlights which platforms keep configuration consistent and which ones depend on native camera or analytics capabilities.
Central CCTV operations consoles for recording, search, and event-driven investigations
CCTV management software centralizes live viewing, recording control, playback, and event handling across managed IP video devices. It solves the operational gap between alerts, evidence gathering, and consistent configuration across sites and operators.
Platforms like Genetec Security Center connect event correlation and video search inside one operational view, while Milestone XProtect uses scalable multi-server architecture and incident workflows for distributed deployments.
Evaluation criteria mapped to integration, data model, automation, and governance
Integration depth determines whether camera discovery, device management, and event alignment work across a mixed hardware estate or only inside a specific vendor ecosystem. Genetec Security Center emphasizes interoperability through ONVIF-class camera discovery and device management, while Axis Camera Station stays tightly aligned to Axis cameras.
A tool’s data model and automation surface determine how fast operators can turn detections into evidence. Security Center Omnicast event-based video search and Milestone XProtect Smart Client incident workflows show what strong event-to-video mapping looks like at operator speed.
Event-based video search with correlated investigations
Genetec Security Center Omnicast ties correlated investigations to event-based video search, which reduces timeline scrubbing when incidents span multiple systems. Hikvision HikCentral and OpenEye Optix also connect alarm or analytics events to review workflows through centralized search and playback.
Multi-site governance with consistent configuration workflows
Milestone XProtect supports multi-site deployments with centralized configuration and enterprise-grade role-based access and audit-friendly operational controls. Genetec Security Center also emphasizes multi-site management with consistent configuration workflows, which helps keep operator experiences uniform across locations.
RBAC controls that support separation of duties
Milestone XProtect provides enterprise-grade role-based access and audit-friendly operational controls across large video estates. Hikvision HikCentral includes role-based access and workflow-oriented monitoring for control-room use, while Dahua SmartPSS and Dahua DSS Pro provide role-based access controls for operator environments.
Analytics-driven incident review tied to recorded playback
Avigilon Alta focuses on AI event search and analytics-driven playback so incidents can be triaged faster than timeline-only review. OpenEye Optix turns detection into review-ready investigation timelines through Optix analytics event search.
Device discovery and integration coverage that matches the camera estate
Genetec Security Center supports ONVIF-class camera discovery and device management so mixed-vendor setups can be managed under one umbrella. Hanwha Vision Wisenet Viewer and Axis Camera Station are strongest when deployments match their native camera ecosystems, which limits value outside those environments.
Automation and API-ready extensibility expectations for event workflows
Genetec Security Center and Milestone XProtect are built around event-driven operational workflows that map naturally to automation and integrations, which matters when incidents must feed downstream systems like ticketing or alerting. Tools centered on tight native ecosystems like Hikvision HikCentral and Dahua DSS Pro can still support automation, but the depth of event normalization and integration breadth is more dependent on the installed hardware and modules.
A CCTV management selection process for controlled rollouts
Start by mapping camera estate constraints to integration coverage needs. Genetec Security Center fits mixed-vendor estates because it supports ONVIF-class camera discovery, while Axis Camera Station and Hanwha Vision Wisenet Viewer are most effective when camera and ecosystem requirements stay within their vendor lines.
Then validate that the incident workflow matches operational reality. Security Center Omnicast event-based search and Milestone XProtect Smart Client incident workflows are strong starting points when investigations depend on event correlation rather than manual review.
Define the operator workflow from alert to evidence
Select a tool that can jump from alarm or analytics events to the right recordings without manual scrubbing. Genetec Security Center Omnicast and Hikvision HikCentral link alarm or event handling to centralized search and playback, while OpenEye Optix and Avigilon Alta prioritize analytics-driven investigation timelines.
Match integration depth to the actual camera and analytics mix
If cameras include multiple vendors, Genetec Security Center provides ONVIF-class discovery and device management to centralize operations. If the estate is standardized on Axis cameras, Axis Camera Station provides reliable event search tied to recordings, and Hanwha Vision Wisenet Viewer fits Wisenet IP camera ecosystems with camera control and event-oriented navigation.
Assess the data model behavior for search, metadata, and retention workflows
Prioritize tools that tie search results to system events and recorded footage using metadata and correlated event investigation paths. Genetec Security Center emphasizes advanced video search using metadata and correlated events, while Milestone XProtect supports flexible recording and retention policies aligned to security needs.
Confirm admin and governance controls for multi-site scale
For centralized governance, evaluate RBAC depth and operational controls that support auditability and separation of duties. Milestone XProtect provides enterprise-grade role-based access and audit-friendly operational controls, and Hikvision HikCentral supports role-based access with multi-site hierarchy for larger estates.
Plan for configuration complexity in large or mixed deployments
Genetec Security Center can require complex deployment and configuration in large mixed-vendor environments, so rollout planning must include trained system engineering time. Milestone XProtect administration can feel complex due to many configuration and role options, and Dahua SmartPSS and Dahua DSS Pro can slow rollout when advanced configuration is needed.
Which teams get operational value from each CCTV management option
CCTV management software fit depends on how central control and incident workflows must operate across cameras, sites, and operators. The tools below map directly to the deployment shape each platform is best suited for.
The highest control and reliability targets align with Genetec Security Center and Milestone XProtect for multi-site governance, while the remaining options optimize for vendor ecosystem depth, analytics-first review, or evidence export workflows.
Enterprises needing cross-system event correlation and centralized investigations
Genetec Security Center fits organizations that need cross-system event correlation because Security Center Omnicast provides event-based video search and correlated investigations. This also supports centralized live viewing and recording management tied to system events across connected systems.
Large security teams standardizing governance across multi-site CCTV
Milestone XProtect is built for multi-site governance and centralized configuration because it scales from single-site to distributed multi-server systems. Its XProtect Smart Client emphasizes incident and event workflows for investigation alongside enterprise-grade role-based access and audit-friendly controls.
Organizations standardizing on Avigilon cameras with AI-ready investigation workflows
Avigilon Alta suits deployments that rely on compatible Avigilon camera and analytics features because its Alta AI event search drives analytics-driven playback. This reduces incident triage time versus timeline-only review under a centralized multi-site monitoring view.
Security integrators running a Hikvision-centric multi-site control-room operation
Hikvision HikCentral fits integrators managing Hikvision camera and NVR estates because it centralizes device and user management with hierarchical multi-site operations. Unified alarm and event management tied to centralized search and playback supports control-room workflows.
Sites focused on vendor ecosystem day-to-day monitoring and evidence exports
Axis Camera Station supports Axis camera deployments with reliable setup and stable live viewing plus exportable evidence workflows built around recorded clips and system events. Hanwha Vision Wisenet Viewer and Wisenet-oriented environments align on event-oriented playback navigation and camera control for incident moments.
Common procurement traps in CCTV management console deployments
Several issues recur across CCTV management tools when deployments start with the wrong assumptions about integration coverage or operator workflow speed. These mistakes show up as configuration friction, investigation delays, or underused event search capabilities.
Avoiding them requires matching the tool’s event model and governance controls to the target operational reality for each site and operator group.
Buying for mixed-vendor discovery without validating event-to-video correlation
Genetec Security Center supports ONVIF-class camera discovery and correlated investigations through Security Center Omnicast, which is the right direction for mixed estates. Axis Camera Station and Hanwha Vision Wisenet Viewer are strongest when the camera and ecosystem remain aligned, so event correlation across mismatched vendors can become limited.
Under-scoping administration training for role and configuration complexity
Milestone XProtect administration can feel complex due to many configuration and role options, and Genetec Security Center can require complex deployment and configuration for large mixed environments. Dahua SmartPSS and Dahua DSS Pro can also slow rollout when advanced configuration is required without trained admins.
Treating analytics as optional when investigations depend on event search speed
Avigilon Alta and OpenEye Optix both center on analytics-driven event search that speeds investigations, so skipping analytics planning can leave operator workflows stuck with timeline review. OpenEye Optix specifically depends on analytics setup and tuning for smaller teams, which affects investigation throughput.
Designing incident workflows around playback only instead of event-first navigation
Hikvision HikCentral, Genetec Security Center Omnicast, and Optix analytics event search all focus on event-to-playback connections, so playback-only processes waste the event model. Axis Camera Station also ties event search to motion and device events directly to recordings, which supports evidence extraction tied to relevant moments.
How We Selected and Ranked These Tools
We evaluated each CCTV management platform on feature depth, ease of use, and value, then produced an overall score using a weighted average where features carried the most weight at 40% while ease of use and value each accounted for 30%. The emphasis stayed on concrete operational mechanisms such as event-based video search, incident workflows, multi-site configuration consistency, and role-based governance controls described in the tool summaries.
Genetec Security Center separated from lower-ranked options through Security Center Omnicast event-based video search and correlated investigations, which directly lifted the features track by connecting event correlation to video evidence retrieval. That same event-driven investigation strength also supports faster day-to-day operator workflows, which helps ease of use in trained environments.
Frequently Asked Questions About Cctv Management Software
How do Genetec Security Center and Milestone XProtect handle multi-site governance and role-based workflows?
Which platforms support ONVIF-class camera discovery and device management without custom development?
How do Genetec Security Center and Avigilon Alta differ in search and investigation workflows?
What is the most practical option for teams that need tight camera and analytics workflows from one vendor?
Which tools best support integrations and automation through APIs for operational workflows?
How do SSO and admin controls typically map to RBAC and auditing in enterprise deployments?
What data migration risks appear when moving from a legacy CCTV setup into a VMS like Milestone or Genetec?
How do Hanwha Wisenet Viewer and Axis Camera Station fit when the requirement is primarily monitoring and evidence export, not full VMS federation?
Which platforms are better suited for operators who need alarm and event handling tied to centralized playback?
What common throughput or performance issues show up in large deployments, and which systems structure scale differently?
Tools reviewed
Primary sources checked during evaluation.
Referenced in the comparison table and product reviews above.
Keep exploring
Comparing two specific tools?
Software Alternatives
See head-to-head software comparisons with feature breakdowns, pricing, and our recommendation for each use case.
Explore software alternatives→In this category
Security alternatives
See side-by-side comparisons of security tools and pick the right one for your stack.
Compare security tools→FOR SOFTWARE VENDORS
Not on this list? Let’s fix that.
Our best-of pages are how many teams discover and compare tools in this space. If you think your product belongs in this lineup, we’d like to hear from you—we’ll walk you through fit and what an editorial entry looks like.
Apply for a ListingWHAT THIS INCLUDES
Where buyers compare
Readers come to these pages to shortlist software—your product shows up in that moment, not in a random sidebar.
Editorial write-up
We describe your product in our own words and check the facts before anything goes live.
On-page brand presence
You appear in the roundup the same way as other tools we cover: name, positioning, and a clear next step for readers who want to learn more.
Kept up to date
We refresh lists on a regular rhythm so the category page stays useful as products and pricing change.