Business Transaction definition

[YANO Keisuke (矢野啓介 ) <yano@jp.fujitsu.com>]

Folks,

Please let me put a question.  Can BPSS v2.0 allow a user to define
the following Business Transaction valid for 1.01 and 1.05?

The points are:
  - using both receipt and acceptance acknowledgment signals
  - without response

  <BusinessTransaction name="BT:Invoice" nameID="bt-invoice">
      <RequestingBusinessActivity
          name="ReqBA:SendInvoice" nameID="reqba-invoice"
          timeToAcknowledgeReceipt="PT6H"
          timeToAcknowledgeAcceptance="PT12H">
          <DocumentEnvelope name="DE:ProcessInvoice" nameID="de-invoice"
              businessDocument="BD:ProcessInvoice"
              businessDocumentIDRef="bd-invoice"/>
      </RequestingBusinessActivity>
      <RespondingBusinessActivity
          name="ResBA:ReceiveInvoice" nameID="resba-invoice"/>
  </BusinessTransaction>

The answer for the question should be "yes".  However, it seems that
the v2.0 draft schema is saying "no".

If the answer is "yes", could anyone show an example of the BPSS 2.0
instance fragment?

Thanks,

Yano Keisuke