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**SECM Part 2 - Kernel Base Concepts: presented to WG on 3/18/15**

**Refer to posted slides**

**Agreements**

  * Starting principles
  * Base concepts (refer to discussion/issues below)
  * Concepts will be elaborated with definition, properties, and constraints as appropriate
    * present kernel concepts before adding the detail

**Discussion/Issues**

  * Model
    * Do we need a separate element for model, or is Container sufficient
      * Motivation
        * Designate the model as top level and not have an owner
        * Designate the purpose and scope  of the model
        * Model is conceptually a broader concept than a container (per Laura)
      * Candidate Approaches
        * Add a boolean property called isTopLevel
      * Follow-up by reviewing UML concept of model
  * ValueSpecification
    * Clarify default value, value spec vs instance spec, slots
    * Determine what is the scope of quantitative values (e.g. time varying, vectors, probability distributions, lifecycle, variants, ...)
    * Consider renaming default as baseline per John W and ValueSpec as ValueSet per Ri
  * Relationships
    * Include directed only or include undirected
    * Should binary only or include nary
 
**Follow-up**

  * Capture discussion and issues on Wiki
  * Maintain list of issues in spreadsheet until JIRA is up and running
  * Discussion follow-up on model
  * Discussion follow-up on values
  * Schedule next telecon
 
**Next Meetings**

  * Reston face to face
    * Status and plans for the SECM development
    * Side session on value discussion and possibly model discussion
  * Next telecon March 31,
    * Part 3 - Kernel Extended Concepts

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