1. Presented by: SIF 3.0 Concepts SIF 3.x Concepts & Terms Joerg Huber

2. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 2 Overview Terms and Concepts of SIF 3.0 REST (what about SOAP), XML, JSON Direct and Brokered Zones Immediate and Delayed Responses Event Processing (Single Source of Truth) Bulk Create, Update & Delete Operations Reduced ‘Chatiness’ SIF 3.0.1 Infrastructure Documentation

3. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 3 REST, SOAP, XML, JSON  Current SIF 3.0.1 Release uses REST as transport and XML representation of Data Model (infrastructure and data dictionary)  SOAP may come in future if the need arises.  JSON is planned but not officially supported, yet. Mapping between XML and JSON required JSON has ambiguities (i.e. Array or not Array) JSON is less bound by standards which causes some issues: i.e. Encryption of payload, validation etc.

4. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 4 Direct Zone NEW Concept in SIF 3.x  Peer-To-Peer connection not involving middleware.  Can be used from web-applications to retrieve and persist data directly from/to a given application.  Can be used by mobile applications (most likely using REST) to connect directly to an application.  Sub-Set of SIF 3.0 Interfaces need to be implemented

5. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 5 Direct Zone cont. Service Consumer Direct Zone (Simple) Environment Provider Object Providers (Services) StudentPersonal SchoolInfo etc. ACLs, URIs (Infrastructure) Data (SIF AU 1.3)

6. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 6 Brokered Zone  What was known as a ZONE involving a ZIS in SIF Classic (SIF 2.x).  The Brokered Zone securely connects N clients to a dynamically changing list of M Data Entity and / or Functional Services through a centrally secure, separate and discrete Message Broker.  Clients of a brokered Zone can implement SOAP and/or REST, depending what the broker supports.  Broker may implement SOAP and/or REST

7. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 7 Brokered Zone cont. Service Consumer Brokered Zone Environment Provider StudentPersonal SchoolInfo etc. ACLs, URIs (Infrastructure) Data (SIF AU 1.3) Object Provider Services ACLs, URIs (Infrastructure) Zone Registry Connectors (Request, Event, Provision, Subscribe etc) Queue Manager Data (SIF AU 1.3) Provider Registry Middleware Note: Not all registries are shown

8. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 8 Immediate & Delayed Response  Delayed Response is what is known in SIF 2.x as asynchronous response.  This concept remains in SIF 3.0  Immediate Response (synchronous) is where the requestor of the data keeps the connection open until a response is available.  Immediate Response is largely a NEW concept in SIF 3.0  Direct Zone: Commonly used  Brokered Zone: Less common when it comes to requesting data through a query

9. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 9 Service Types  Infrastructure Services  Environment Provider  Queues  Alerts  Namespace Registry etc.  Data Entity/Object Service is a service for a given SIF Object (i.e. StudentPersonal, SchoolInfo) => CRUD  Create  Read (Query)  Update  Delete

10. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 10 Service Types cont.  Functional Services  Execute Style (Jobs):  i.e. End-of-Year Rollover.  Student Locator  Report Style: Provide a ‘View’ of multiple Entities in one Object.  Composite Object Services Object made of parts of other object  Relationship Services? …/StudentPersonals/{id}/TeachingGroups Not yet supported with SIF3 Framework!

11. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 11 Event Processing  Event Processing changes considerably in SIF 3.0  Publishing Events is only allowed for the ‘Source of Truth’ which is the Object Provider!  Non-Sources of Truth (Consumer) can only request CRUD operations on the Source of Truth and if accepted the Source of Truth will publish the event to the Zone.  ‘RefID’ allocation  Responsibility of “Source of Truth”  Consumer can request that its RefID is used (mustUseAdvidory HTTP Header field).  Source of Truth can accept this or reject it  Non-Source of Truth must maintain a link between the “Create” Request until Source of Truth response with the new RefID where consumer does not provide RefID.

12. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 12 Event Processingcont. Time Table App (Subscriber Service) Time Table App (Subscriber Service) Attendance Tracking App (Subscriber Service) Attendance Tracking App (Subscriber Service) SIS App (Provider Service) SIS App (Provider Service) Broker “Source of Truth” Save new Student Request Create Request Create Accepted AB12FF5FE20945F12FFE2FF02211FF02 Accepted AB12FF5FE20945F12FFE2FF02211FF02 Publish Create Event Receive Create Event LMS (Subscriber Service) LMS (Subscriber Service)

13. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 13 Bulk Operations SIF 3.0 infrastructure enables bulk operations!  Creation of multiple objects in one request  Update of multiple objects in one request  Deletion of multiple objects in one request => Improves performance => Scales better ‘Requestor’ of bulk operation always knows success status of each object in the request.

14. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 14 Reduced ‘Chatiness’  Bulk Operations  Usage of standard HTTP Status codes rather than ACK/NAK Messages.  Queues: ‘Get Next Message and Delete Previous’ in one message rather then spread over 4 messages! => Improves performance => Scales better => Easier to implement!

15. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 15 SIF 3.0.1 Infrastructure Documentation SIF Association Website https://www.sifassociation.org/Specification/P ages/Infrastructure_3_0_1.aspx

16. © Systemic Pty Ltd September 2014 Training Course - Sydney: SIF 3.x Concepts 16 Questions Any Questions?