Cloud computing is a technology model that provides network access to shared computing resources such as servers, storage, applications, databases, and networks. NIST describes cloud computing through characteristics including on-demand access, resource pooling, rapid elasticity, and measured usage, along with service models such as SaaS, PaaS, and IaaS.
Organizations use cloud computing to support applications, data analytics, collaboration, enterprise databases, artificial intelligence, business operations, and digital infrastructure.
Modern cloud environments can combine public cloud, private cloud, on-premises infrastructure, and edge computing.
Cloud computing has developed from basic hosted applications into extensive technology environments capable of supporting enterprise workloads.
The main cloud computing models include:
Infrastructure as a Service (IaaS)
Platform as a Service (PaaS)
Software as a Service (SaaS)
Public cloud
Private cloud
Hybrid cloud
Multi-cloud
| Model | Primary Purpose | Example Use |
| IaaS | Provides computing infrastructure | Servers and storage |
| PaaS | Provides application development environments | Software development |
| SaaS | Provides complete applications | Business productivity |
| Private Cloud | Dedicated cloud environment | Controlled workloads |
| Hybrid Cloud | Combines cloud and internal systems | Enterprise applications |
| Multi-Cloud | Uses multiple cloud environments | Distributed workloads |
NIST identifies IaaS, PaaS, and SaaS as the three principal cloud service models and recognizes public, private, community, and hybrid deployment models.
Cloud infrastructure consists of physical and virtual resources that support cloud computing.
Common components include:
Computing resources
Storage
Databases
Virtual machines
Containers
Networks
Load balancing
Identity management
Monitoring systems
Backup infrastructure
NIST describes cloud infrastructure as including physical resources such as servers, storage, and networking together with an abstraction layer that enables cloud capabilities.
Cloud platforms can support business applications including:
Enterprise resource planning
Customer relationship management
Financial applications
Human resources
Supply-chain management
Business intelligence
Document management
Collaboration
Analytics
These applications can connect departments and provide access to shared organizational information.
Cloud computing is important because organizations increasingly depend on digital applications, data platforms, remote collaboration, analytics, and connected business systems.
Cloud infrastructure can support:
Scalable computing
Centralized data management
Application availability
Remote access
Business analytics
Disaster recovery
Application integration
Automated infrastructure management
Enterprise cloud environments may process information from:
Business applications
Customer systems
Financial platforms
Websites
Connected devices
Manufacturing equipment
Databases
Analytics systems
Cloud data infrastructure can include data warehouses, data lakes, cloud databases, data pipelines, backup systems, and analytics platforms.
Organizations commonly manage cloud information through:
Data classification
Access controls
Encryption
Data-quality processes
Backup procedures
Data retention policies
Database monitoring
Governance controls
Effective management helps organizations understand where information is stored, who can access it, and how it is protected.
Cloud security focuses on protecting infrastructure, applications, identities, networks, and information.
Common controls include:
Multi-factor authentication
Identity and access management
Encryption
Network segmentation
Security monitoring
Vulnerability management
Backup systems
Audit logging
The FTC emphasizes that organizations remain responsible for appropriately securing information placed in cloud environments and should carefully manage access, configurations, inventories, and security practices.
| Evaluation Area | Purpose |
| Infrastructure | Provides computing resources |
| Data Management | Organizes enterprise information |
| Security | Protects systems and data |
| Integration | Connects applications |
| Scalability | Supports changing workloads |
| Monitoring | Tracks performance |
| Governance | Establishes policies and controls |
| Recovery | Supports business continuity |
During 2025 and 2026, cloud computing continued evolving through artificial intelligence infrastructure, hybrid cloud architectures, cloud-native applications, automation, cybersecurity, and edge computing.
The growth of artificial intelligence has increased demand for cloud infrastructure capable of supporting:
Machine learning
Generative AI
AI inference
Large-scale data processing
Model development
Analytics
Automated decision-support systems
Cloud environments can provide computing and storage resources for AI workloads while allowing organizations to integrate AI with existing applications.
Organizations increasingly operate workloads across multiple environments.
Hybrid and multi-cloud architectures can combine:
Public cloud
Private cloud
On-premises systems
Edge infrastructure
Specialized computing environments
Important considerations include application compatibility, data location, security, integration, monitoring, and governance.
Automation can manage:
Infrastructure deployment
Application configuration
Resource monitoring
Backup processes
Security controls
Scaling
Software updates
Infrastructure-as-code approaches can also help organizations define cloud environments through repeatable configurations.
Edge computing places processing capabilities closer to devices, users, or industrial equipment.
It can support applications requiring:
Low latency
Local processing
Connected-device management
Industrial monitoring
Real-time analytics
Cloud and edge computing can therefore operate together within distributed technology architectures.
Cloud-native applications increasingly use:
Containers
Microservices
APIs
Orchestration
Automated deployment
Distributed databases
These approaches can support scalable application architectures, although they also introduce additional management and security considerations.
NIST's cloud-computing definition was updated on May 7, 2026, reflecting the continued maintenance of its foundational cloud-computing guidance.
NIST also released new Cybersecurity Framework 2.0 quick-start guidance on March 23, 2026, addressing enterprise risk management, cybersecurity risk, and workforce considerations.
Cloud computing in the United States can be affected by federal laws, state privacy requirements, industry regulations, cybersecurity frameworks, contractual requirements, and organizational policies.
The applicable rules depend on the organization, information involved, industry, and jurisdiction.
Organizations processing personal information may need to consider requirements concerning:
Data collection
Consumer rights
Data access
Data sharing
Data retention
Security safeguards
State privacy requirements vary, so organizations should determine which rules apply to their particular activities.
Organizations handling protected health information may be subject to HIPAA requirements concerning privacy and security.
Cloud environments containing healthcare information should therefore incorporate appropriate:
Access controls
Authentication
Audit logging
Encryption
Data-management procedures
Financial organizations may face additional requirements concerning information security, records, risk management, and protection of customer information.
The FTC's Safeguards Rule establishes information-security requirements for covered financial institutions, with breach-reporting provisions taking effect in May 2024.
NIST's Cybersecurity Framework 2.0 provides organizations with a flexible approach for managing cybersecurity risk and can be applied across different sectors and technology environments.
Organizations can use relevant frameworks alongside their legal, regulatory, contractual, and internal requirements.
Cloud teams use a broad range of technologies to manage infrastructure, applications, data, and security.
Useful resources include:
Cloud architecture documentation
Cloud management platforms
Infrastructure-as-code tools
Cloud monitoring dashboards
Data warehouses
Data lakes
Database management systems
Identity-management platforms
Security monitoring tools
Backup and recovery systems
Migration assessment tools
API management platforms
Data-governance frameworks
Organizations evaluating cloud infrastructure can review:
Application dependencies
Data requirements
Security controls
User permissions
Network architecture
Integration requirements
Compliance obligations
Backup procedures
Disaster recovery
Performance requirements
Monitoring
Migration sequencing
| Layer | Examples | Main Function |
| Infrastructure | Compute, storage, networking | Provides core resources |
| Data | Databases, warehouses | Stores information |
| Applications | ERP, CRM, analytics | Supports business processes |
| Integration | APIs, ETL, middleware | Connects systems |
| Security | IAM, encryption | Protects resources |
| Management | Monitoring, automation | Operates infrastructure |
| Governance | Policies, controls | Manages risk |
A layered architecture helps organizations understand how infrastructure, data, applications, security, and governance interact.
Cloud computing is a model that provides convenient network access to shared computing resources such as servers, storage, applications, and networks.
Enterprise cloud computing refers to the use of cloud infrastructure, platforms, applications, and data technologies to support organizational operations and business workloads.
Hybrid cloud combines private or on-premises infrastructure with public cloud environments, allowing workloads and information to operate across connected environments.
Cloud data infrastructure consists of cloud-based technologies used to store, process, integrate, protect, and analyze organizational information.
Cloud security depends on architecture, configuration, access controls, encryption, monitoring, software maintenance, and organizational practices. Moving information to the cloud does not eliminate the organization's responsibility for appropriate security controls.
Cloud computing provides a foundation for modern enterprise platforms, data infrastructure, business applications, analytics, automation, and digital operations.
During 2025 and 2026, cloud environments have continued developing through AI infrastructure, hybrid and multi-cloud architectures, cloud-native applications, automation, edge computing, and strengthened cybersecurity practices.
Understanding cloud computing, enterprise cloud platforms, cloud infrastructure, cloud data management, hybrid cloud, SaaS, PaaS, IaaS, cloud security, cloud migration, and business applications provides a useful foundation for organizations evaluating modern technology environments.
Because cloud requirements vary according to industry, application architecture, data sensitivity, and jurisdiction, organizations should evaluate security, privacy, governance, integration, resilience, and applicable regulatory requirements before implementing or modifying a cloud environment.
By: Wilson
Updated: August 11, 2026
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By: Wilson
Updated: August 12, 2026
Read More
By: Wilson
Updated: August 12, 2026
Read More
By: Wilson
Updated: August 11, 2026
Read More