RE: [plcs-dex] Dex4 - Dex 3 Interface

["Barker, Sean (UK)" <sean.barker@baesystems.com>]

Title: Dex4 - Dex 3 Interface

Agree mostly. Referencing task is always a reference to a task_method_version.

 

However, if there is a task specification which is unknown to the recipient (and how is this known?) it would be better to send the required task specifications via DEX 3 before sending the DEX 4. Conversely, if a recipient of a DEX 4 is missing a referenced task specification, they could request it (and get a DEX 3 back).

 

Sean Barker

0117 302 8184

 

---

From: Tim Turner [mailto:tjt@lsc.co.uk]
Sent: 21 November 2005 16:59
To: 'plcs-dex@lists.oasis-open.org'
Subject: [plcs-dex] Dex4 - Dex 3 Interface

*** WARNING ***

This mail has originated outside your organization,
either from an external partner or the Global Internet.
Keep this in mind if you answer this message.

Dear All,

Having looked through Dex 4 - Work Package Definition and Dex 3 - Task Set, I conclude that the interface hinges around the relationship between scheme_entry (Dex4) and a Task_method_version (Dex3). This relationship is provided by an activity_method_realization.

Each work package item (activity) has a scheme_entry which is defined for a specific version (scheme_version) of a Work package (scheme).

Hence there is a path between the work item (activity), the scheme of work (scheme_entry) and the task_method_version which realizes the activity.

The minimal Dex 4 exchange which assumes that a task library has been populated with a set of tasks from Dex 3, will therefore, need to (uniquely) identify the relevant task_method_version to be linked to the scheme_entry via the activity_method_realization relationship.

A Dex4 exchange that assumes there is no task library will have to include the entire task specification for each activity (work package item).

Please let me know if this is contrary to any other views or opinions.

Regards,
Tim

*************************************************************************
*
* Mr. Timothy J. Turner BSC(Hons) MSc, MBCS
* Executive Consultant, Enterprise Integration Technologies
* LSC Group, Lincoln House, Wellington Crescent, Fradley Park, LICHFIELD, Staffordshire WS13 8RZ, ENGLAND
* UK Switchboard: +44-1543 446800 Fax: +44-1543 446900
* US Direct telephone: +1-803-327 2829 (Rock Hill)
* Mobile (US) telephone: +1-843-4759179
* Mobile (UK) telephone: +44-7885-393225
* e-mail: tjt@lsc.co.uk <mailto:tjt@lsc.co.uk> Internet: <http://www.lsc.co.uk/>
*
*************************************************************************

DISCLAIMER: ***SECURITY LABEL: NOT PROTECTIVELY MARKED***   The information in this message is confidential and may be legally privileged. It is intended solely for the addressee.  Access to this message by anyone else is unauthorised.  If you are not the intended recipient, any disclosure, copying, or distribution of the message, or any action or omission taken by you in reliance on it, is prohibited and may be unlawful.  Please immediately contact the sender if you have received this message in error. This e-mail originates from LSC Group. Registered in England & Wales No 2275471 Registered Office: Devonport Royal Dockyard, Devonport, Plymouth, PL1 4SG

********************************************************************
This email and any attachments are confidential to the intended
recipient and may also be privileged. If you are not the intended
recipient please delete it from your system and notify the sender.
You should not copy it or use it for any purpose nor disclose or
distribute its contents to any other person.
********************************************************************