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[lmi] InputSequence questions

From: Vaclav Slavik
Subject: [lmi] InputSequence questions
Date: Tue, 23 Mar 2010 18:31:44 +0100


I didn't realize it until now, but I'm unclear about some properties of
InputSequences that significantly affect editor's UI design:

* Does the sequence always cover the whole domain? In other words, does
  the first interval always begin at 0 and the last end with maturity
  (excl)? Or are discontinuous InputSequence values valid?

* Does a [x, retirement] interval -- as opposed to [x, retirement) --
  make sense? (I assume that "maturity]" doesn't, please correct me 
  if I'm wrong.)

I'd like to confirm my interpretation of duration_mode, too. Is the
following correct and complete?

e_invalid_mode     - not valid for editing
e_attained_age     - "until the anniversary of N years"
e_number_of_years  - "for N years", is this end_mode only?
e_inception        - only begin_mode of the 1st interval?
e_retirement       - retirement
e_maturity         - maturity
(where N is a number)

I don't understand e_duration (and it's difference from
e_number_of_years) or e_inforce, but as far as I can tell, the latter
isn't implemented and can be ignored for now (?).

Thanks in advance,

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