A POD (Point of Data) is a unit of data that is stored in Context Service. A POD can contain information about a customer, an interaction, or any other entity that is relevant to the contact center. A POD can map to a fieldset, which is a collection of fields that define the structure and schema of the POD. A fieldset can have a name, a description, and a list of fields. Each field can have a name, a type, and a value. A POD can belong to only one fieldset, but a fieldset can have multiple PODs1. The runtime connector is not responsible for account and password management, but for registering the contact center components with Context Service and sending and receiving PODs2. Every customer can be mapped to multiple PODs, depending on the number of interactions they have with the contact center3. References:

1: Cisco Unified Contact Center Express Features Guide, Release 12.0(1) - Context Service Data Model, Fields, and Fieldsets [Cisco Unified Contact Center Express] - Cisco(https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_12_0/features/guide/uccx_b_features-guide-1201/uccx_b_features-guide-1201_chapter_010.html)

2: Cisco Unified Contact Center Express Features Guide, Release 12.0(1) - Component Configuration and Registration [Cisco Unified Contact Center Express] - Cisco(https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_11_6/features/guide/uccx_b_uccx-features-guide/uccx_b_uccx-features-guide_chapter_01.pdf)

3: Cisco Unified Contact Center Express Features Guide, Release 12.0(1) - Omnichannel Customer Journey [Cisco Unified Contact Center Express] - Cisco(https://www.cisco.com/c/en/us/td/docs/voice_ip_comm/cust_contact/contact_center/crs/express_12_0/features/guide/uccx_b_features-guide-1201/uccx_b_features-guide-1201_chapter_010.html)