# Definitions
The following definitions are provided related to Data Residency and Hybrid Computing for AWS customers using the Well-Architected Framework. For additional information, see [AWS Glossary](https://docs.aws.amazon.com/glossary/latest/reference/glos-chap.html)**.**
## AWS definitions
+ **AWS [Outposts Server](https://aws.amazon.com/outposts/servers/faqs/):** AWS Outposts Servers are rack-mountable servers in 1U and 2U form factors for locations with limited space or smaller capacity requirements.
+ **AWS [Outposts rack](https://aws.amazon.com/outposts/rack/faqs/):** AWS Outposts rack is a fully managed service that extends AWS infrastructure, services, APIs, and tools on premises for a truly consistent hybrid experience.
+ **AWS [Local Zones](https://aws.amazon.com/about-aws/global-infrastructure/localzones/faqs/?nc=sn&loc=5):** AWS Local Zones are a type of infrastructure deployment that places select AWS services closer to your end users and workloads.
+ **[Region](https://aws.amazon.com/about-aws/global-infrastructure/regions_az/):** AWS Regions are physical locations around the world where we cluster data centers. We call each group of logical data centers an Availability Zone. Each AWS Region consists of a minimum of three isolated and physically-separated Availability Zones within a geographic area.
+ **[Availability Zone (AZ)](https://aws.amazon.com/about-aws/global-infrastructure/regions_az/):** One or more discrete data centers with redundant power, networking, and connectivity in an AWS Region.
+ **[Parent Availability Zone or Region](https://aws.amazon.com/about-aws/global-infrastructure/regions_az/):** The Region and Availability Zone pair that the Outposts service connects to in the Region.
+ **[Local gateway](https://docs.aws.amazon.com/outposts/latest/userguide/outposts-local-gateways.html):** A local gateway connects your Outpost subnets and your on-premises network.
+ **[Service link](https://docs.aws.amazon.com/outposts/latest/userguide/region-connectivity.html):** The service link is a necessary connection between your Outposts and your chosen AWS Region (or home Region) and allows for the management of the Outposts.
## Industry definitions
+ **Data residency:** The requirement of keeping data in a certain region or country to comply with local laws and regulations.
+ **Data sovereignty:** Refers to an organization or country's ability to have full control and ownership over the data they generate and store, including where that data is stored, who can access it, and providing resilience and self-sufficiency from external factors. Key aspects include data residency, operator access restrictions, resiliency and survivability, and technological autonomy.
+ **Low latency:** A technical use-case where application components need under ten millisecond latency between each other.
+ **Local data processing:** A technical use-case where it is optimal to process the data where it is generated (locally) as opposed to sending it to a cloud region. This could be due to transfer costs, transfer time, and the size of the dataset.
+ **Control plane:** Provides the administrative APIs used to create, read or describe, update, delete, and list resources. Example control plane actions are launching a new Amazon EC2 instance, creating an [Amazon S3](https://aws.amazon.com/s3/) bucket, and describing an Amazon SQS queue. When you launch an Amazon EC2 instance, the control plane has to perform multiple tasks such as finding a physical host with capacity, allocating the network interface, preparing an [Amazon Elastic Block Store](https://aws.amazon.com/ebs/) (Amazon EBS) volume, generating AWS Identity and Access Management (AWS IAM) credentials, adding the security group rules, and more. Control planes tend to be complicated orchestration and aggregation systems.
+ **Data plane:** Provides the primary function of the service. For example, the data plane includes the running Amazon EC2 instance itself, reading and writing to an Amazon EBS volume, getting and putting objects in an Amazon S3 bucket, and Amazon Route 53 answering DNS queries and performing health checks.