1. Get an overview of Microsoft Teams architecture
BRK3071
Get an overview of Microsoft Teams architecture
Dan Massey – Partner Group Engineering Manager
Mark Longton – Principal Group Program Manager
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2. Attention: PLEASE READ
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Attention: PLEASE READ
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3. Microsoft Teams Architecture
Designed for the cloud
Agility at scale
Amplify the value of O365
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4. Teams brings together O365 and Skype
Teams Clients
Office 365 platform and services
Teams Services
Skype Infrastructure
Azure
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5. Teams Client Architecture
Optimized for agility
Auto-updates
Desktop
Mobile
Web
Windows
Mac WP
iPhone/iPad
Android
Electron
UWP
IOS
Android
C++
Objective C
HTML5/CSS
Angular
jQuery, lodash etc.. (200+ Open Source Components)
TypeScript, Node, SASS C#
Swift
Java
Browsers: Edge, IE11, latest Chrome, latest Firefox
Desktop: Windows 10, 8.1, 7(SP1), Mac OS X
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6. Teams Conversations Logical Architecture
Modern Group
Chat
Team
SharePoint Site
Folder
Channel
One
Drive
Tab
Image
Message
Reply Chain
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7. 5/27/2018 4:54 AM
Teams services
Teams Services
Often referred to as the “Middle Tier” although it is actually a collection of Micro-services
More efficient / less complex
Scale flexibility
Lower risk / deployment agility
Optimize for evolutionary change
Front end servers
Identity
Team mgmt
Auth
Admin
AAD sync
Extensibility
Tabs
Compliance
Audit
Graph
Retention
Bots
Notifications
Config
Setting store
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8. 5/27/2018 4:54 AM
Teams and Skype
Skype Infrastructure
Leverage the next generation compliant skype services for messaging and VOIP calling
PSTN calling leverages the Skype for Business Online services
Messaging
Calling /Meeting
Chat
Calling service
Call recording
Media
Transport relays
Voic
Search
Media processor
Trouter
URL preview
Media controller
Meeting scheduler
Notification Hub
Registrar
Personal expression
People
Config
Identity
Presence
Experimentation
Skype Identity
Permission service
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9. Information Protection
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Teams and Office 365
Office 365
Teams strives to realize the full benefits of O365 both as a platform and for end user capabilities
A part of our vision is to be an App hub
Platform
Applications
Exchange
OneNote
Modern Groups
PowerApps
SharePoint
Planner
Stream
PowerPoint, Word, Excel
OneDrive for Business
Information Protection
Data and analytics
Microsoft Power BI
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10. Teams on Azure Azure is the core platform that Teams is built on
Massive scale
Global foot print
Redundancy
Azure
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11. High Level Architecture
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High Level Architecture
Key
Microsoft Teams
Teams
Web
Desktop
iOS
App
Android
App
Windows Phone
App
Skype services
Electron
Azure and O365
calling
SERVICES
Companions
Web
Settings and
O365 access
Messaging
Audio / video
Telemetry
Notes
Files
Files
Other Workloads
OneNote
WAC
OneDrive for business
SharePoint
Experimentation
Teams services
Chat & Presence services
Next Gen Calling
AAD
Most recent
files
MRU
Identity
Calendar
Exchange
PSTN
Search
Extensibility
Connectors
Notification Hub
Firehose Listener
Service
SMTP
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12. Regional Partitioning
181 countries | 25 languages
Chat data stored ‘In Region’ based on tenant affinity
If tenant in Australia, Canada, India, Japan, the United Kingdom, or the United States Files are stored ‘In Country’
Teams honors EU model clauses
Chat data stored ‘In Country’ available the UK in 4Q CY2017 and in India 1Q CY2018
US Gov clouds in 2018
AMERICAS
EMEA
APAC
Dublin
Amsterdam
Bay
Des Moines
Hong Kong
Singapore
Microsoft Confidential 2

13. AAD sync Currently supported Under development
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AAD sync
Operations performed on Groups are synched to Microsoft Teams
Currently supported
Group property updates
Group manager changes
Group member changes
Group hard delete
User property updates
User hard delete
Microsoft
Teams
AAD
Sync normally completes in 15 minutes.
SLA is 24 hours
Under development
Group soft-delete and restore
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14. Where Are My conversations Stored?
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Where Are My conversations Stored?
Chat service
In memory processing for speed
Leverages Azure storage (blob, tables, queues)
Substrate / Exchange
Chat and channel messages are also stored in Exchange for information protection
Conversation images
Images are stored in a media store
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15. Where Are My Files Stored?
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Where Are My Files Stored?
1:N chats
Files are uploaded to OneDrive for Business and permissions are set for the members of the chat
Team conversations
Files are uploaded to SharePoint. A folder is associated with each channel in the team
Cloud storage
Dropbox, Box, Citrix ShareFile, Google Drive
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16. How Team Enables Information Protection
1:1 chats
Group chats
Channel messages
O365 Information Protection tools
eDiscovery
Legal Hold
Compliance content search
Archive
Retention
Audit Logs
Microsoft
Teams
Chat
service
O365
substrate
SharePoint Files
OneNote
OneDrive for Business
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17. Microsoft Teams Guest Access Architecture
One identity
Azure Active Directory (AAD) is the master for Teams identity and membership across Office 365 (Teams, SharePoint, Apps, etc.)
Federated resources
O365 services extend with their data (e.g., conversations stored in Teams chat service & documents stored in SPO & OneDrive)
Loose coupling
Services notify each other of changes to a team (e.g., creation, deletion, updates)
Using sync from AAD to Teams, Exchange Online AD and SharePoint Online AD they achieve reliability if they miss notifications
Guest Users addition directly via AAD
AAD
O365 Groups
AAD
O365 Groups
Identity
Resource URLs
Owners
Members
Guest Users addition by
team owners in Teams

18. Enabling Microsoft Teams
For the full Microsoft Teams experience, every user should be enabled for Exchange Online, SharePoint Online, OneDrive for Business and Office 365 Group creation.
User's mailbox
is hosted in:
Team and Channel mgmt
Create and view meetings
Modify user profile picture
Add and configure connectors
Add and configure tabs & bots
Info Protection (eDiscovery)
Exchange Online
Yes
Exchange Online Dedicated vNext
Exchange Online Dedicated – Legacy
(Sync to Azure AD required) No
Exchange on-premises
Exchange 2016 CU3 or later
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19. Resources to Learn More
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Resources to Learn More
Your hub for all things Microsoft Teams including vision, practical onboarding guidance, success stories, and support.
Assistance for customers to realize their vision with Microsoft cloud services
Resource
Link
Office Blog
Office Roadmap
Product Help
Known Issues List
Team Developer Hub
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20. Please evaluate this session
Tech Ready 15
5/27/2018
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21. 5/27/2018 4:54 AM
© Microsoft Corporation. All rights reserved. MICROSOFT MAKES NO WARRANTIES, EXPRESS, IMPLIED OR STATUTORY, AS TO THE INFORMATION IN THIS PRESENTATION.