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*<info-ada>archive.current
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Received: FROM SIMTEL20.ARPA BY USC-ISIF.ARPA WITH TCP ; 4 Dec 85 08:24:18 PST
Date: Wed 4 Dec 85 09:23:24-MST
From: Rick Conn <RCONN@SIMTEL20.ARPA>
Subject: PDL Survey Results
To: ada-sw@SIMTEL20.ARPA
cc: info-ada@USC-ISIF.ARPA
Message-ID: <12164447055.19.RCONN@SIMTEL20.ARPA>

	Thanks to all who responded to my PDL survey.  As we suspected
from the beginning, the results were inconclusive, but some information
which may be of interest came to light.  The complete survey and all
responses is in PD:<ADA.GENERAL>PDLSURVEY.DOC.

	Following is the forward to this file.

	Complete copies of the survey file will be emailed to the respondants.

		Rick


---- PDLSURVEY.DOC Foreword ----

			DDN-Based Ada PDL Survey
			    4 December 1985
			     Richard Conn


	A survey was conducted on the Defense Data Network in September to
November 1985 to determine what PDLs were currently in use by members of the
INFO-ADA and ADA-SW mailing list communities.  It was expected that this survey
would not be conclusive in any way since (1) the survey audience was limited
and (2) of those who would receive the survey, only a few would respond.  It
was hoped that the survey would, at the most, indicate if a definite trend
toward one particular PDL exists.

	I have concluded from the few (less than 10) responses received that
a trend toward one particular Ada PDL is NOT evident.  There is some
indication that there is a desire to Ada PDLs internally, which will
result in a lack of standardization.

	Overview of responses:

		Identification of Ada PDL	Number of Users
		-------------------------	---------------
		ANNA by David Luckham			1
		Byron by Intermetrics			3
		Caine-Farber-Gordon PDL/81		1
		Internally-developed			4
		PDL/Ada by IBM				1


	Following are the responses received from the survey.  They are
presented here because of their information content and the potential value
of this information to the community.


REFERENCE
	Larry Lindley, Naval Avionics Center, "Survey of Ada-Based PDLs,
Final Report, January 1985," write to:

		Commanding Officer
		Naval Avionics Center
		21st Street and Arlington Avenue
		Indianapolis, IN  46218

Contract Number N00163-84C-0300, Done by Computer Technology Associates, Inc,
7927 Jones Branch Drive, Suite 600W, McLean, VA  22102 and Advanced Software
Methods, Inc, 17021 Sioux Lane, Gaithersburg, MD  20878


DISCLAIMER
	No endorsement of any particular Ada PDL or company is expressed,
or intended to be implied, by me in this forward.  All content of this
forward is my own opinion and not necessarily that of anyone or any company
associated with me.

				Rick Conn




**** RESPONSE TO QUERY ****

Received: from usc-eclb.arpa by CSNET-RELAY.ARPA id a023560; 27 Sep 85 3:55 EDT
Date: 27 Sep 1985 00:48-PDT
Sender: HALHART@USC-ECLB.ARPA
Subject: [trwrb!trwspp!spp1!hal@Berkeley.EDU (Hal Hart): Re: Informa...]
From: HALHART@USC-ECLB.ARPA
To: conn%ti-eg.csnet@CSNET-RELAY.ARPA
Cc: HalHart@USC-ECLB.ARPA
Message-ID: <[USC-ECLB.ARPA]27-Sep-85 00:48:33.HALHART>
Received: from csnet-relay by ti-eg; Fri, 27 Sep 85 08:07 CDT

Received: from UCB-VAX.ARPA by USC-ECLB.ARPA; Wed 25 Sep 85 11:58:55-PDT
          by UCB-VAX.ARPA (5.26/5.9)
          id AA01992; Wed, 25 Sep 85 12:12:17 PDT
Date: 25 Sep 1985 0939-PDT (Wednesday)
From: trwrb!trwspp!spp1!hal@Berkeley.EDU (Hal Hart)
To: Richard_Conn <ucbvax!CSNET-RELAY.ARPA!conn%ti-eg.CSNET@CSNET-RELAY.ARPA>
Cc: HalHart@eclb, trwrb!trwspp!Kerner@Berkeley.EDU, Kerner@eclb,
           trwrb!trwspp!Belz@Berkeley.EDU
Subject: Re: Informal Survey on Ada PDLs
In-Reply-To: Your message of Tue, 24 Sep 85 16:15 CDT.
                         <8509250048.AA16615@UCB-VAX.ARPA>
Return-Path: <trwrb!trwspp!spp1!hal@Berkeley.EDU>
Message-ID: <8509251639.AA03911@spp1.UUCP>

Rick,

TRW is using TRW's own Ada-based PDL (which we simply call
"Ada PDL") on 2 major projects (OSIS for the Navy, AMPE for
the AF(?)) & several medium or small projects.  Plus, it will (would?)
be used on any of many other projects, of varying sizes, which
we have bid.

I am not sure, but I think at least one TRW project (at a non-
California site) has used Intermetrics' Byron; at least, they
intended to try it out.  

I appreciate your trying to so "measure" popularity or
acceptability of various Ada-based PDLs, but as you suggest,
this will be hard.  First, many of the Ada-based PDLs are
proprietary (esp. their suites of support tools), so they can
not possibly be used by more than 1 company.  Also, number of
projects or, even better, aggregate dollar value or programs
sizes, might be a better measure which you would have little hope
of capturing.  And, finally, it is certainly too early to start
drawing objective conclusions about the successes & failures of
these early usages (both due to future completion dates of large
projects & inevitable improvements to each PDL & its tools).

	-- Hal Hart, TRW


PS: I assume you are aware of the semi-yearly update of Ada PDLs
status which Judy Kerner publishes in Ada LETTERS.  It includes
dozens of listings, & I know that she just early this month
completed her own canvass of every entry.  Although her new matrix
probably won't appear in your mailbox for months, I suggest that
you request an advance copy from her (2 electronic addresses above).




**** RESPONSE TO QUERY ****

Received: from nosc-tecr.arpa by CSNET-RELAY.ARPA id a002680;
          27 Sep 85 11:45 EDT
Date: 27 Sep 1985 0832-PST
From: Contr22 <CONTR22@NOSC-TECR>
Subject: Re: Informal Survey on Ada PDLs
To: conn%ti-eg.csnet@CSNET-RELAY
Reply-To: CONTR22@NOSC-TECR
Received: from csnet-relay by ti-eg; Fri, 27 Sep 85 13:41 CDT

At Magnavox, we are using the Byron language from Intermetrics for all
AFATDS software.

Linda Rising
Magnavox
Ft. Wayne, IN


**** RESPONSE TO QUERY ****


Received: from usc-eclb.arpa by CSNET-RELAY.ARPA id a010492; 29 Sep 85 21:40 EDT
Date: 29 Sep 1985 18:36-PDT
Sender: CDONALDSON@USC-ECLB
Subject: Informal PDL Survey
From: CDONALDSON@USC-ECLB
To: conn%ti-eg.csnet@CSNET-RELAY
Message-ID: <[USC-ECLB.ARPA]29-Sep-85 18:36:55.CDONALDSON>
Received: from csnet-relay by ti-eg; Mon, 30 Sep 85 00:28 CDT

Hello!

     I believe we met at the IEEE Ada as a PDL working group meeting
in Clairmont, California earlier this year ... I was representing 
Harris Corporation.  I was interested in your PDL survey for two
reasons:  1) I am currently doing work for Larry Lindley, and
2) I can give you some information on PDL usage at Harris

     Based on Christine Youngblut's findings in Larry's survey, I have
been desigining an experiment concerning the use of Ada PDLs for the
STARS Methodology Team.  We are interested in the effect of PDL
characteristics on process and product quality.  We have 
decided to look at the effects of including some specific information
regarding requirements traceability, exception handling, and inter-unit
dependencies, the use of structured English in combination with Ada,
and the provision of special templates geared for the particular design
methodology to be used -- in this case Object-Oriented Design as
defined by Booch.  The expeirment will consist of four teams of four
people each for six months, where they (each team) will design the 
same problem using a different PDL, and implementing the problem in
Ada.  Depending upon the results of the first phase, there will be
a second phase of the same length with two PDLs.  If you are interested
I would be happy to send you a copy of the plan I prepared for Larry,
it is about 130 pages right now and so if you could send me your
mailing address I will forward it to you.  I am always looking for
criticism/comments.

     Although I am soon to be leaving the company to work for Software
Productivity Solutions, I can tell you a little about use of PDLs, 
especially Ada PDLs, at Harris.  Of course, the Harris Ada PDL has
been used the most on a variety of projects.  Because it is a complex
PDL supporting a very sophisticated methodology, it has not always 
been well received.  In addition, we used the PDL/Ada from IBM 
on a project.  No other Ada PDLs have been used at Harris, although
Caine Farber Gordon PDL/81 has been used and there is talk about
looking at their Ada style.

     I am very interested in the results of your survey since it 
relates to work I am and will be doing for Larry, and would appreciate
your keeping me abreast of your findings.  I am particularly interested
in any comments you receive on structured English, and of course the
explicit information I mentioned above (exceptions, requirements traceability,
inter-unit dependnecies).

     The experiment is a competitively procured contract (RFP out
now) expected to start up in January.

Sincerely,

Cammie Donaldson
305-242-5677


**** RESPONSE TO QUERY ****


Received: from mitre-bedford.arpa by CSNET-RELAY.ARPA id a001561;
          9 Oct 85 13:41 EDT
Date: Wednesday, 25 Sep 1985 09:13-EDT
From: cb@mitre-bedford.ARPA
To: conn%ti-eg.csnet@CSNET-RELAY.ARPA
Cc: cb@mitre-bedford.ARPA
Subject: Re:  Informal Survey on Ada PDLs
In-reply-to: Your message of Tuesday, 24 Sep 1985 17:15-EDT.
Received: from csnet-relay by ti-eg; Thu, 10 Oct 85 10:45 CDT

  We have a small project going here at MITRE which is using David
Luckham's ANNA annotation extensions to the Ada language as a Program
Design Language.  ANNA was described in the March issue of IEEE Software.
We have been looking at how using a more formal Ada PDL affects what is
presented at a PDR and a CDR, as well as how much better the final system
looks.  Currently we are in the middle of designing the system, we just had
a PDR review.
					Christopher Byrnes
					The MITRE Corporation
					Burlington Road
					M. S. A180T
					Bedford, Mass. 01730

					cb@Mitre-Bedford.ARPA
					...decvax!linus!bccvax!cb.UUCP


**** RESPONSE TO QUERY ****


Received: from mit-multics.arpa by CSNET-RELAY.ARPA id a016072;
          15 Oct 85 18:03 EDT
Date:  Tue, 15 Oct 85 17:50 EDT
From:  Avery%mit-multics.arpa@CSNET-RELAY
Subject:  Re: Informal Survey on Ada PDLs
To:  Richard_Conn <conn%ti-eg.csnet@CSNET-RELAY>
In-Reply-To:  Message of 24 Sep 85 17:15 EDT from Richard_Conn
Message-ID:  <851015215050.533981@MIT-MULTICS.ARPA>
Received: from csnet-relay by ti-eg; Wed, 16 Oct 85 07:44 CDT


Rick,

     GTE Government Systems has an internal Ada Design Language which is
used throughout the corporation.  If you have any further questions or
need any further information, please contact Charlene Hayden.

                  Hayden -at MIT-MULTICS



**** RESPONSE TO QUERY ****

	Texas Instruments is developing its own Ada PDL.  TI intends to use
this PDL internally and is considering marketing it, but no decision has been
made yet.  TI has also used the Byron Ada PDL of Intermetrics internally on
a government contract.

		Rick Conn


		Contact Alan Woody, Phone 214-952-2136, DDN Mail
			WOODY%TI-EG@CSNET-RELAY, for questions

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