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Notes: ECP protocol CPS/ECP/002
Names: »0316A «
Derivation
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CPS/ECP/002
…02…KNN/801114…02……02…#
RETRIEVAL
…02……02…CAMPS
T̲A̲B̲L̲E̲ ̲O̲F̲ ̲C̲O̲N̲T̲E̲N̲T̲S̲
1 INTRODUCTION .................................
3
2 PRICE QUOTATION ..............................
3 to 4
2.1 DOCUMENT UPDATING COSTS ..................
3
2.2 SCHEDULE IMPACT COSTS ....................
4
2.3 DEVELOPMENT COSTS ........................
4
3 SCHEDULE IMPACT ..............................
4
4 BIDDING PROVISION ............................
5
4.1 VALIDITY .................................
5
4.2 DELIVERY .................................
5
4.3 ACCEPTANCE CRITERIAS .....................
5
4.4 TYPE OF PROPOSAL .........................
5
4.5 PAYMENT PLAN .............................
5
5 ENGINEERING CHANGE DESCRIPTION ...............
6 to 12
5.1 PROPOSED CONFIGURATION ...................
6
5.2 CURRENT CONFIGURATION ....................
12
5.3 DESCRIPTION OF CHANGE ....................
12
1̲ ̲ ̲I̲N̲T̲R̲O̲D̲U̲C̲T̲I̲O̲N̲
The retrieval criterias contained in current System
Design Specification do not seem to be very efficient
from an operational point of view.
The objective by this ECP is therefore to introduce
a new set of retrieval criterias, which are much more
useful to the user seen from an operational point of
view.
The new proposed retrieval criterias are supposed to
replace all retrieval criterias specified in the current
baseline made up of the CPS/230/SYS/0001 version 1.2.
2̲ ̲ ̲P̲R̲I̲C̲E̲ ̲Q̲U̲O̲T̲A̲T̲I̲O̲N̲
The costs related to the change of the retrieval criterias
are divided into three categories, which are
- Document update costs
- Schedule impact costs
- Development costs
2.1 D̲O̲C̲U̲M̲E̲N̲T̲ ̲U̲P̲D̲A̲T̲I̲N̲G̲ ̲C̲O̲S̲T̲S̲
System Requirements Specification
CPS/210/SYS/0001 ..................... 2 MM
Interface Control Documents
CPS/230/ICD/0001 ..................... 1/2 MM
C̲P̲S̲/̲2̲3̲0̲/̲I̲C̲D̲/̲0̲0̲0̲2̲ ̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲.̲ ̲1̲/̲2̲ ̲M̲M̲
Total ................................ 3 MM
2.2 S̲C̲H̲E̲D̲U̲L̲E̲ ̲I̲M̲P̲A̲C̲T̲ ̲C̲O̲S̲T̲S̲
System design of storage and retrieval and subsequent
activities related to storage and retrieval.
(SHAPE go ahead date* - 24.11.1980) x 3 eng/day
*Please refer section 3 below.
2.3 D̲E̲V̲E̲L̲O̲P̲M̲E̲N̲T̲ ̲C̲O̲S̲T̲S̲
Design (additional cost) ............ 2 1/2 MM
O̲v̲e̲r̲a̲l̲l̲ ̲C̲o̲s̲t̲s̲
(Assumed go ahead prior to 24.11.1980)
5 1/2 MM + 41.206,- D. Kr. = ......... D̲.̲ ̲K̲r̲.̲ ̲2̲2̲6̲.̲6̲3̲3̲,̲-̲
3̲ ̲ ̲S̲C̲H̲E̲D̲U̲L̲E̲ ̲I̲M̲P̲A̲C̲T̲
Currently 3 engineers are occupied by the storage and
retrieval design in relation to the systems design.
Any SHAPE approval later than the 24.11.1980 will have
an impact on the system design of storage and retrieval
and all subsequent activities related to this design.
Each day later than the 24.11.1980 is estimated to
have an impact of one day elapsed each.
4̲ ̲ ̲B̲I̲D̲D̲I̲N̲G̲ ̲P̲R̲O̲V̲I̲S̲I̲O̲N̲
4.1 V̲A̲L̲I̲D̲I̲T̲Y̲
The order for the new retrieval capabilities must be
received by the Contractor no later than 24. November
1980. If the order is placed after this date the bidder
reserves the right to adjust the price according to
the terms found in paragraph 3.
4.2 D̲E̲L̲I̲V̲E̲R̲Y̲
The delivery of the new retrieval capabilities will
be made along with the CAMPS system as an integrated
part.
4.3 A̲C̲C̲E̲P̲T̲A̲N̲C̲E̲ ̲C̲R̲I̲T̲E̲R̲I̲A̲S̲
There are no new acceptance criterias for this new
item, but the criterias found in the contract and the
Systems Requirements Specification apply.
4.4 T̲Y̲P̲E̲ ̲O̲F̲ ̲P̲R̲O̲P̲O̲S̲A̲L̲
The price quoted in this proposal is a firm fixed price.
Price basis is 4th quarter 1980.
4.5 P̲A̲Y̲M̲E̲N̲T̲ ̲P̲L̲A̲N̲
Payments will be made to the Contractor in 3 installments:
30% at work order signature.
40% when Systems Requirements and the ICD/0001 and
ICD/0002 has been updated.
30% when current line item 4.2.1 "Subsystem Design"
has
been completed.
5̲ ̲ ̲E̲N̲G̲I̲N̲E̲E̲R̲I̲N̲G̲ ̲C̲H̲A̲N̲G̲E̲ ̲D̲E̲S̲C̲R̲I̲P̲T̲I̲O̲N̲
5.1 P̲R̲O̲P̲O̲S̲E̲D̲ ̲C̲O̲N̲F̲I̲G̲U̲R̲A̲T̲I̲O̲N̲
The proposal starts to define the new retrieval criterias.
Next the proposal addresses facilities which will make
it easier and simple for the user to retrieve the messages
to which he is allowed access.
Finally the proposal specifies a number of restraints,
which have to be put on the retrieval capabilities.
R̲e̲t̲r̲i̲e̲v̲a̲l̲ ̲C̲r̲i̲t̲e̲r̲i̲a̲s̲
R̲e̲t̲r̲i̲e̲v̲a̲l̲ ̲o̲f̲ ̲S̲p̲e̲c̲i̲f̲i̲c̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲ ̲a̲n̲d̲ ̲C̲o̲m̲m̲e̲n̲t̲s̲
The purpose of this function is to provide retrieval
capability to messages and comments for which the operator
has gained a knowledge of retrieval parameters.
a) I̲n̲c̲o̲m̲i̲n̲g̲ ̲a̲n̲d̲ ̲O̲u̲t̲g̲o̲i̲n̲g̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲
U̲s̲e̲r̲:̲
1) DTG (FL5) and HQ(FL6) and SIC.
Note: a) The DTG is that of release of message
with no timezone.
b) The HQ is specified by PLA referencenumber.
HQ is optional.
c) As SIC is allowed, any SIC which would
lead to distribution to the requesting
terminal.
d) The security classification is implicit
retrieval criteria.
S̲u̲p̲e̲r̲v̲i̲s̲o̲r̲,̲ ̲M̲D̲C̲O̲
1) DTG (FL5) and HQ (FL6) and SIC.
Note: a) The DTG is that of release of message
with no timezone.
b) The HQ is specified by PLA reference
number. HQ is mandatory.
c) As SIC is allowed any SIC. SIC is
mandatory.
d) The security classification is implicit
retrieval criteria.
2) DTG and Channel ID and Serial Number (FL1).
Note: a) The DTG is time of catalogging of
message immediately before transmission
of outgoing messages and after reception
+ correction of incoming messages.
As the DTG will normally not be known
to the accuracy of one minute the
CATALOG DISPLAY described in "Retrieval
of Catalog Information" can be used
for accurate determination of the
DTG.
b) C̲o̲m̲m̲e̲n̲t̲s̲ ̲a̲n̲d̲ ̲M̲e̲s̲s̲a̲g̲e̲s̲ ̲i̲n̲ ̲P̲r̲e̲p̲a̲r̲a̲t̲i̲o̲n̲
draft: (formats A and the transmitted comment
format G1 or G3.
user:
1) DTG and Message Identification.
Note: a) Message Identification is a unique
serial number following the message
throughout its life cycle in a CAMPS.
b) The message can only be retrieved
from the originating terminal.
c) The classification is an implicit
retrieval parameter.
S̲u̲p̲e̲r̲v̲i̲s̲o̲r̲ ̲+̲ ̲M̲D̲C̲O̲
1) DTG and Message identification.
Note: a) Message identification is a unique
serial number following the message
throughout its life cycle in a CAMPS.
b) The classification is an implicit
retrieval parameter.
R̲e̲t̲r̲i̲e̲v̲a̲l̲ ̲o̲f̲ ̲C̲a̲t̲a̲l̲o̲g̲ ̲I̲n̲f̲o̲r̲m̲a̲t̲i̲o̲n̲
The purpose of this function is to provide the operator
with a capability to overview messages originated at
specified HQ's and/or containing specified SIC's.
User: 1) DTG-window and HQ and SIC.
note: a) DTG is that of release of messages
or that of formatline B1 for transactions
(see Retrieval of Specific Messages).
b) The HQ is specified by PLA reference
number. The HQ is optional. The HQ
is only relevant for messages.
c) As SIC is allowed any SIC.
The SIC is optional. The SIC is only
relevant for messages.
d) The security classification is implicit
retrieval criteria.
S̲u̲p̲e̲r̲v̲i̲s̲o̲r̲ ̲+̲ ̲M̲D̲C̲O̲
1) DTG-window and HQ and SIC.
Note: a) DTG is that of release of messages
or that of formatline B1 for transactions
(see "Retrieval of Specific Transaction
and Messages).
b) The HQ is specified by PLA reference
number. The HQ is optional. The HQ
is only relevant for messages.
c) As SIC is allowed any SIC. The SIC
is optional. The SIC is only relevant
for messages.
d) The security classification is an
implicit retrieval criteria.
2) DTG-Window and terminal designator or channel ID.
note: a) Terminal designator and channel ID
are optional. If none specified the
criteria is as above.
b) DTG is that of transaction or transmission
(see Retrieval of Specific Transactions
and Messages).
C̲o̲m̲m̲e̲n̲t̲s̲ ̲o̲n̲ ̲R̲e̲t̲r̲i̲e̲v̲a̲l̲ ̲C̲r̲i̲t̲e̲r̲i̲a̲
F̲M̲ ̲D̲e̲s̲i̲g̲n̲a̲t̲o̲r̲
a) The FM designator used in the retrieval request
should be one of the known 3000 at the receiving
site. Whenever the message is stored on the HDB
the FM designator is transformed to a reference
number. When the request is issued it is either
per reference number or FM designator. The latter
will be converted to ref.#. By coinciding ref #
criteria is fulfilled.
S̲I̲C̲
a) The SIC is used to limit the user access to messages.
With the criteria a user may access all incoming/outgoing
messages at a CAMPS site, as if they were addressed
to the HQ to which the user belongs.
A̲m̲b̲i̲g̲u̲i̲t̲y̲
The proposed criterias are ambiguous. The user is granted
access to all messages satisfying the criteria.
P̲r̲e̲e̲m̲p̲t̲i̲o̲n̲
The long period, possibly required to search for retrieval
keys will with the present nonpreemptable nature of
format H block the requesting terminal for quite some
time. It is proposed to let format H consist of only
format lines A, B, C, and D, to delete the multiple
V3, V4, attempts in format line C and to create a retrieve
presentation/criteria refuse of lines F to N. To the
last presentation format a catalog presentation format
should be created.
The message(s), transaction(s) satisfying the given
criteria should be queued for the requesting terminal
with TBD precedence.
P̲e̲r̲f̲o̲r̲m̲a̲n̲c̲e̲ ̲(̲C̲a̲t̲a̲l̲o̲g̲ ̲U̲p̲d̲a̲t̲e̲)̲
The proposed "new" retrieve criteria makes it significantly
more complex to built retrieve catalogs. Where the
"old" criteria allowed for a simple sequential storage
of search keys with one DTG contained, the search keys
for messages where a printer had been terminated within
the DTG (i.e. one message have search keys in more
than one DTG), the "new" criteria requires sorting
of retrieval keys based on DTG for all incoming messages.
It is proposed to limit the acceptable delay on incoming
messages from their DTG in FL5 to time of reception
to twelve hours, any "older" messages being retrievable
only by the supervisor by means of channel-id etc.
The delay is the numerical delay despite of time zone.
U̲n̲i̲d̲e̲n̲t̲i̲f̲i̲a̲b̲l̲e̲ ̲D̲T̲G̲
The ICD 0003 states:
a) It is allowed to have any six digit number at time
of reception (ICD/0003 p. 30).
b) It is allowed to have any zone suffix letter (ICD/0003
p. 3).
c) It is allowed to have any three letter sequence
as month unidentifiable DTGs are ignored (treated
as too old). Zone suffix ignored.
P̲e̲r̲f̲o̲r̲m̲a̲n̲c̲e̲ ̲(̲r̲e̲t̲r̲i̲e̲v̲e̲ ̲r̲e̲s̲p̲o̲n̲s̲e̲)̲
Up to 4 retrievals of type DTG may take place simultaneously
with one retrieval of type DTG-window all with responsetimes
as specified below.
For the calculation above it is assumed that:
1) Retrieve requests of type DTG produce in average
2 messages and amount to 80% of the requests.
2) Retrieve catalog requests of type DTG window
produce in average 20 messages/transactions
and amounts to 20% of the requests.
Retrieve requests of type DTG window will in average
search 1 busy hour traffic load (780 messages + transactions).
Retrieval responsetime for messages retrieved from
online storage shall be less than 30 seconds using
request type DTG. If no other retrieval request is
in processing it shall be less than 10 seconds in 90%
of all cases.
Retrieval responsetime for messages retrieved from
online storage shall be less than 30 seconds + 1 minute
per busy hour traffic scanned using request type DTG
window + time to complete other requests of this type.
Retrieval responsetime for messages from offline storage
shall be not more than 4 minutes + the responsetime
specified for online storage.
Retrieval responsetime for messages using key Channel
ID + serial number + DTG and for transaction shall
be the same as for message using key DTG.
S̲e̲a̲r̲c̲h̲ ̲i̲n̲ ̲M̲o̲r̲e̲ ̲T̲h̲a̲n̲ ̲O̲n̲e̲ ̲V̲o̲l̲u̲m̲e̲
For requests to search catalog any DTG window will
be truncated to belong only to one volume of storage
media. DTG windows will be limited to 6 hours.
B̲u̲i̲l̲d̲ ̲o̲f̲ ̲C̲a̲t̲a̲l̲o̲g̲s̲
The performance figures given here are given under
the assumption that catalogs are sorted by DTG when
they are build. A sequential storage of retrieve keys
is still possible with the "new" keys, but this would
lead to uppredictable and very high search times in
retrieval.
5.2 C̲U̲R̲R̲E̲N̲T̲ ̲C̲O̲N̲F̲I̲G̲U̲R̲A̲T̲I̲O̲N̲
Refer sections 3.2.7 and 3.4.1.6.4 of the CPS/210/SYS/0001.
5.3 D̲E̲S̲C̲R̲I̲P̲T̲I̲O̲N̲ ̲O̲F̲ ̲C̲H̲A̲N̲G̲E̲
E̲n̲g̲i̲n̲e̲e̲r̲i̲n̲g̲ ̲C̲h̲a̲n̲g̲e̲s̲
a) The new criterias require dedicated catalogs, it
is no more feasable to base retrieval key search
on the log.
b) The new criteria gives an increased load of about
one discaccess per 3 second in busy hour average
in order to build the catalogs.
c) The new criteria gives a reduced catalog space
size of 30 - 40% on discs (for assuming dedicated
catalogs were created anyway - see a) above).
d) The new criterias give a significant higher load
on the disk for retrieval of same number of messages.
The proposal contains a set of changed requirements
with less allowed retrievals giving a balanced
load (i.e. same as for old criterias).
e) The new criteria require more code and buffers
resident (2 - 3 k words).
