anchor.diff:  * Streaming platform
   * Extensions
   
  -             ++++++++++++++++++++++++++++++               +++++++++++++++++++++++++++++++++                       
  -             +                            +      REST     +         Service discovery     +                       
  -             +                            +-------------->+-------------------------------+        REST           
  -             +                            +               +             ZooKeeper         +<-----+--------+------+
  -             +     Streaming Platform     +               +++++++++++++++++++++++++++++++++      |        |      |
  -             +                            +                                                      |        |      |
  -             +                            + KAFKA CLIENT ++++++++++++++++++++++++++++++++++      |        |      |
  -             +                            +<------------>+          Broadcaster           +------+        |      |
  -             +                            +              +--------------------------------+               |      |
  -             +----------------------------+              +          Spring Boot           +               |      |
  -             +           KAFKA            +              ++++++++++++++++++++++++++++++++++               |      |
  -             ++++++++++++++++++++++++++++++   REST            ^        + STATICS +  |                     |      |
  -                       ^            + API +<-------+          |        +++++++++++  |                     |      |
  -                       |            +++++++        |      SSE |            ^        |                     |      |
  -                       |                           |          |            |        |                     |      |
  -                       |                           |          |            |        |                     |      |
  -                       |                         ++++++++++++++++   HTTP   |        |  DB DRIVER          |      |
  -                       |                         +    WebApp    +----------+        +--------------+      |      |
  -                       |                         +--------------+                                  |      |      |
  -                       |                         +  JAVASCRIPT  +                                  |      |      |
  -                       |                         ++++++++++++++++                                  v      |      |
  -                       |                                                                         +++++++++++++   |
  -                       |                                                              DB DRIVER  + Database  +   |
  -                       |                                                            +----------->+-----------+   |
  -                       |                                                            |            + Couchbase +   |
  -                       |              +++++++++++++++++++++++++++++++++++++++++++++++++++++++++  +++++++++++++   |
  -                       | KAFKA CLIENT + Extensions -> Validation API -> Persistance Component +                  |
  -                       +------------->+ ------------------------------------------------------+                  |
  -                                      +                       Spring Boot                     +------------------+
  -                                      +++++++++++++++++++++++++++++++++++++++++++++++++++++++++                   
  + ++++++++++++++++++++++               +++++++++++++++++++++++++++++++++
  + +                    +      REST     +         Service discovery     +
  + +                    +-------------->+-------------------------------+        REST
  + +                    +               +             ZooKeeper         +<-----+--------+------+
  + + Streaming Platform +               +++++++++++++++++++++++++++++++++      |        |      |
  + +                    +                                                      |        |      |
  + +                    + KAFKA CLIENT ++++++++++++++++++++++++++++++++++      |        |      |
  + +                    +<------------>+          Broadcaster           +------+        |      |
  + +                    +              +--------------------------------+               |      |
  + +--------------------+              +          Spring Boot           +               |      |
  + +       KAFKA        +              ++++++++++++++++++++++++++++++++++               |      |
  + ++++++++++++++++++++++   REST            ^        + STATICS +  |                     |      |
  +       ^        + API +<-------+          |        +++++++++++  |                     |      |
  +       |        +++++++        |      SSE |            ^        |                     |      |
  +       |                       |          |            |        |                     |      |
  +       |                       |          |            |        |                     |      |
  +       |                     ++++++++++++++++   HTTP   |        |  DB DRIVER          |      |
  +       |                     +    WebApp    +----------+        +--------------+      |      |
  +       |                     +--------------+                                  |      |      |
  +       |                     +  JAVASCRIPT  +                                  |      |      |
  +       |                     ++++++++++++++++                                  v      |      |
  +       |                                                                     +++++++++++++   |
  +       |                                                          DB DRIVER  + Database  +   |
  +       |                                                        +----------->+-----------+   |
  +       |                                                        |            + Couchbase +   |
  +       |  KAFKA   +++++++++++++++++++++++++++++++++++++++++++++++++++++++++  +++++++++++++   |
  +       |  CLIENT  + Extensions -> Validation API -> Persistance Component +                  |
  +       +--------->+ ------------------------------------------------------+                  |
  +                  +                       Spring Boot                     +------------------+
  +                  +++++++++++++++++++++++++++++++++++++++++++++++++++++++++
                
   === Service discovery
   
  
positive.code: 
  https://projects.spring.io/spring-restdocs[Spring REST Docs] provides a very handy way to document and test the APIs in a single activity.
  It extends the integration testing API of `Spring` to build `AsciiDoc` files regarding the assertions performed on the services that are test.
  This projects answer the need to documentation in an easy maintainance way.
  
  ==== Spring Security
  
  
negative.code: Transformation can be also aggregations to satisfy some user views requirements.
  This means that a stream can be composed of different streams.
  
  There is no reason to exclude some system interactions from the asynchronous messaging model.
  Even a click from a user can be considered as a stream source.
  
  image:https://camo.githubusercontent.com/36c0a9ffd8ed22236bd6237d44a1d3eecbaec336/687474703a2f2f692e696d6775722e636f6d2f634c344d4f73532e706e67[https://github.com/staltz]
  