readme

README.md

@@ -112,10 +112,29 @@ As a cloud-native approach, we will take blob storage as a service-independent m
 - __IBM Cloud Object Storage:__ Enterprise-grade, scalable object storage.
 - __MinIO:__ Self-hosted, S3-compatible object storage solution for on-premises or private cloud.
 
-#### Arquitectura del sistema
+#### System Architecture
 
 ![Diagram of the conections between the described componentes. Frontend connected to BFF, BFF connected to BlobProvider, BFF connected to Backend, Backend connected to DataProvider and Backend connected to Identity provider.](docs/architecturalComponentLayout.svg)
 
+At system level, since identity and data providers are not controlled parts, there are three main components:
+
+- Frontend
+- BFF
+- Backend
+
+Frontend will speak ONLY with BFF via REST comands. Only sensible data will be encrypted via AES.
+Frontend will GET lazily all the images for galleries.
+
+BFF will redirect GET image requests to configured CDN or will serve them if no CDN is configured.
+BFF will cache repeated and critical requests.
+BFF will redirect to Backend in case of user creation, login or update; selling activity as booking or buying; image creation, edition or delete.
+
+Backend will contact Identity Providers such as Google or Instagram at login time.
+Backend will generate and validate login tokens.
+Backend will create, retrieve, edit and delete user and image data.
+
+Since frontend will be device dependant at a future, BFF will give flexibility for identifying client users.
+
 ---
 
 ### Glossary
@@ -147,3 +166,15 @@ __EntityFramework:__ An object-relational mapper (ORM) for .NET, used to interac
 __Blob Storage:__ A service for storing large amounts of unstructured data, such as images, videos, and documents.
 
 __Plug-and-play architecture:__ A design approach that allows components to be easily added, removed, or replaced without affecting the rest of the system.
+
+__CDN (Content Delivery Network):__ A network of servers distributed geographically to deliver content more efficiently to users based on their location.
+
+__AES (Advanced Encryption Standard):__ A symmetric encryption algorithm widely used for securing sensitive data.
+
+__REST (Representational State Transfer):__ An architectural style for designing networked applications, often used for APIs.
+
+__DAPR (Distributed Application Runtime):__ A runtime that simplifies building distributed systems by providing APIs for common tasks like state management and pub/sub messaging.
+
+__Edge Computing:__ A distributed computing paradigm that brings computation and data storage closer to the location where it is needed to improve response times and save bandwidth.
+
+__Parallel Processing:__ A method of processing data in which multiple processors execute tasks simultaneously to increase efficiency and performance.