[cosmos-dev] RE: INPUT NEEDED: ER 218853 --- Core COSMOS Components

[Hubert H Leung <hkyleung@xxxxxxxxxx>]

My definition of a data manager is:
A data manager exposes some operations of an application with a collection of web services.


If the product client is the (remote) API provided by the application, it is not a "COSMOS component". The COSMOS architecture does not enforce the use of "product clients". It's an implementation detail about how to turn the incoming SOAP message into a product API call. In some cases, the web service can query the data stores without using product APIs.

Since CMDBf is an important part of COSMOS, I suggest defining MDR and federating CMDB as well, and say they are data managers that support the CMDBf web services.

_________________________
Hubert Leung
IBM Toronto Lab
hkyleung@xxxxxxxxxx
905-413-3382
"Devine, John T" <John.Devine@xxxxxx>

"Devine, John T" <John.Devine@xxxxxx>

04/25/2008 11:42 AM

To	"Stratton, Paul" <Paul.Stratton@xxxxxx>, "Mohsin, Jimmy" <Jimmy.Mohsin@xxxxxx>, Sheldon Lee-Loy/Toronto/IBM@IBMCA, Hubert H Leung/Toronto/IBM@IBMCA, "Muldoon, William H" <William.Muldoon@xxxxxx>, "David Whiteman" <David_Whiteman@xxxxxxxxxx>
cc	"Cosmos Dev" <cosmos-dev@xxxxxxxxxxx>
Subject	RE: INPUT NEEDED: ER 218853 --- Core COSMOS Components

Agree with Paul, and other questions/suggestions below.
 
Jack

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From: Stratton, Paul 
Sent: Friday, April 25, 2008 11:32 AM
To: Mohsin, Jimmy; 'Sheldon Lee-Loy'; 'Hubert H Leung'; Muldoon, William H; Devine, John T; 'David Whiteman'
Cc: 'Cosmos Dev'
Subject: RE: INPUT NEEDED: ER 218853 --- Core COSMOS Components
 
Some suggestions below

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From: Mohsin, Jimmy 
Sent: 25 April 2008 16:04
To: Sheldon Lee-Loy; Hubert H Leung; Muldoon, William H; Stratton, Paul; Devine, John T; David Whiteman
Cc: Cosmos Dev
Subject: INPUT NEEDED: ER 218853 --- Core COSMOS Components
 
 
Crew,
Based on the Arch meeting yesterday, here is the modified listing and (a start at the) definitions for each COSMOS component… Please update / append / correct as appropriate.
 
COSMOS Broker
Is a COSMOS component with which web services may register, and for COSMOS clients to find those web services.  Currently, there are no restrictions on the type of web services that my register themselves with the Broker.
 
Product Client
Is a product-specific API that is implemented by each product to access its data.  The Product Client “resides” within the Data Manager.
[Devine, John T] I’m still left confused as to whether the “Product Client” is an intrinsic part of the Data Manager/MDR (what used to be known as the Data Adapter), or the API provided by the product to access it’s data which is exploited by the DM.   If the later, we shouldn’t say implemented, as this would imply work over and above that already done in providing the API.   If the “Product Client” is more akin to a Data Adapter, then implemented is a good term, as bespoke coding is required. 
 
Data Manager 
Is a component that hosts a Product Client, and handles communication with the COSMOS environment.
[Devine, John T] Again this depends on what is meant by a “Product Client”.   If “Product Client” is a Data Adapter, then I might prefer wraps, or embeds to hosts, as hosts implies a more loosely coupled implementation to my ear.
 
COSMOS Client
Is a component used access and visualize information from Product Data sources via Data Managers.  The Client may be an API or a UI; COSMOS ships with a sample webUI.
 
Thanks,
Jimmy Mohsin
Cell   +1-609-635-1703