IS 13672: Application layer structure in open systems interconnection for information technology

20 Pages·1993·1.8 MB·English

by  Bureau of Indian Standards

इंटरनेट मानक
Disclosure to Promote the Right To Information
Whereas the Parliament of India has set out to provide a practical regime of right to
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in order to promote transparency and accountability in the working of every public authority,
and whereas the attached publication of the Bureau of Indian Standards is of particular interest
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timely dissemination of this information in an accurate manner to the public.
“जान1 का अ+धकार, जी1 का अ+धकार” “प0रा1 को छोड न’ 5 तरफ”
Mazdoor Kisan Shakti Sangathan Jawaharlal Nehru
“The Right to Information, The Right to Live” “Step Out From the Old to the New”
IS 13672 (1993): Application layer structure in open
systems interconnection for information technology [LITD
14: Software and System Engineering]
“!ान $ एक न’ भारत का +नम-ण”
Satyanarayan Gangaram Pitroda
““IInnvveenntt aa NNeeww IInnddiiaa UUssiinngg KKnnoowwlleeddggee””
“!ान एक ऐसा खजाना > जो कभी च0राया नहB जा सकता हहहहै””ै”
Bhartṛhari—Nītiśatakam
“Knowledge is such a treasure which cannot be stolen”

\
IS 13672 : 1993
ISOjlEC 9545 : 1989

vwits ?e;rr
+R
0
lndian Standard
NOITACILPPA REYAL ERUTCURTS IN NEPO
SMETSYS NOITCENNOCRETNI ROF NOITAMROFNI
YGOLONHCET
U DC 681’327’8’01

@ SIB 1993
BUREAU OF INDIAN STANDARDS
MANAK BHAVAN, 9 BAHADUR SHAH ~AFAR MARG
NEW DELHI 110002
r
March 1993 Price Group 7
. .
i
retupmoC smetsyS dna noitcennocretnI lanoitceS Committee, DTL 63
LANOITAN FOREWORD
sihT naidnI dradnatS hcihw si lacitnedi htiw CEI/OSI 5459 : 9891 noitamrofnI‘ ygolonhcet -
nepO systems noitcennocretni - noitacilppA reyal ,’erutcurts deussi yb eht lanoitanretnI
noitazinagrO rof noitazidradnatS ( 0SI ) saw detpoda yb eht uaeruB fo naidnI sdradnatS no
eht noitadnemmocer fo eht retupmoC smetsyS dna noitcennocretnI lanoitceS Committee
( DTL 63 ) dna lavorppa fo eht scinortcelE dna noitacinummoceleT noisiviD .licnuoC
nI eht detpoda dradnats niatrec ygolonimret dna snoitnevnoc era revewoh ton lacitnedi ot esoht
desu ni naidnI .sdradnatS noitnettA si ylralucitrap nward ot eht :gniwollof
Wherever eht sdrow lanoitanretnI‘ ’dradnatS ,raeppa gnirrefer .ot siht ,dradnats yeht dluohs
eb daer sa naidnI‘ .’dradnatS
nI siht naidnI ,dradnatS eht gniwollof lanoitanretni sdradnats era derrefer .ot daeR ni rieht
evitcepser ecalp eht :gniwollof
International Standard Indian Standard
0SI 8947 : 4891 noitamrofnI gnissecorp SI 37321 ( traP 1 ) : 7891 cisaB ecnerefer
systems - nepO systems -nocretni ledom fo nepo systems noitcennocretni rof
noitce,n - cisaB ecnerefer ledom noitamrofni gnissecorp systems : traP 1
( Identical )
0SI 3-8947 : 9891 noitamrofnI process- SI 37321 ( traP 3 ) : 3991 cisaB ecnerefer
gni systems - nepO systems ledom fo nepo systems noitcennocretni rof
noitcennocretni - cisaB ecnerefer noitamrofni gnissecorp systems : traP 3
ledom - traP 3 : gnimaN dna gnimaN dna gnisserdda ( Identical )
gnisserdda
0SI 9468 : 8891 noitamrofnI gnissecorp SI 51631 : 3991 ecivreS noitnifed rof eht
systems - nepO systems -nocretni noitaicossa lortnoc ecivres tnemele ni nepo
noitcen - ecivreS noitinifed rof eht systems noitcennocretni rof noitamrofni
noitaicossa lortnoc ecivres tnemele gnissecorp systems ( Identical )
0SI 2288 : 8891 noitamrofnI gnissecorp toD DTL 63 ( 6361 ) noitcennoC detneiro
systems - nepO systems -nocretni noitatneserp ecivres noitinifed ni nepo
noitcen - noitcennoC detneiro systems noitcennocretni rof noitamrofni
noitatneserp ecivres noitinifed gnissecorp systems ( under preparation )
( Identical )

The lacinhcet ccmmittee elbisnopser rof eht noitaraperp fo siht dradnats sah deweiver eht
snoisivorp fo eht gniwollof 0SI dradnatS dna sah dediced taht ti si elbatpecca rof esu ni
noitcnujnoc htiw siht :dradnats
RT/OSI 7009 : 7891 noitamrofnI gnissecorp systems - stpecnoC dna seigolonimret rof eht
lautpecnoc emehcs dna eht noitamrofni esab
ylnO eht hsilgnE egaugnal txet ni eht lanoitanretnI dradnatS sah neeb deniater elihw gnitpoda
ti ni siht .dradnats
IS 13672 : 1993
ISO/IEC 9545 : 1989
Indian Standard
NOITACILPPA REYAL ERUTCURTS IN NEPO
SMETSYS NOITCENNOCRETNI ROF NOlTAMkOFNI
YGOLONHCET
1 Scope 2 Normative references
This lanoitanretnI dradnatS senifer eht cisaB ehT gniwollof sdradnats niatnoc snoisivorp ,hcihw
ecnerefeR ledoM rof %0 ot edivorp a krowemarf rof hguorht ecnerefer ni siht ,txet etutitsnoc snoisivorp fo
gnitanidro-oc eht tnempoleved fo gnitsixe dna erutuf siht lanoitanretni .dradnatS tA eht emit fo ,noitacilbup
noitacilppA reyaL .sdradnats tI is dedivorp rof eht snoitide detacidni erew .dilav llA sdradnats era
ecnerefer yb noitacilppA reyaL .sdradnats tcejbus ot ,noisiver dna seitrap ot stnemeerga desab
no siht lanoitanretnI dradnatS era degaruocne ot
nI ralucinao siht lanoitanretni :dradnatS etagitsevni eht ytilibissop fo gniylppa eht tsom tnecer

snoitide fo eht sdradnats detsil .woleb srebmeM fo

4 senifed eht erutan fo sdradnats ni eht CEI dna 0SI niatniam sretsiger fo yltnerruc dilav
noitacilppA reyaL dna eht spihsnoitaler gnoma lanoitanretnI .sdradnatS
;meht
IS0 7498 : ,4891 Information processing systems -
)b senifed eht larutcetihcra krowemarf ni hcihw Open Systems Interconnection - Basic Reference
laudividni %0 noitacilppA reyaL slocotorp llahs Model.
eb .depoleved
0SI :3-8947 ,9891 Information processing systems -
c) senifed eht seirogetac fo elbaifitnedi stcejbo Open Systems Interconnection - Part 3: Naming and
hcihw era yrassecen rof eht noitacificeps dna Addressing.
noitarepo fo ;slocotorp
0SI :9468 ,8891 Information processing systems -
)d setaler detubirtsid noitamrofni gnissecorp Open Systems Interconnection - Service Definition for
seitivitca ot eht sdradnats ni eht noitacilppA the Association Control Service Element.
.reyaL
0SI :2288 ,8891 Information processing systems -
This lanoitanretnI dradnatS seod ton yficeps secivres Open Systems Interconnection - Connection -
dna slocotorp rof .ISO tI is rehtien na noitatnemelpmi oriented presentation service definition.
noitacificeps rof ,smetsys ron a sisab rof gnisiarppa
eht ecnamrofnoc fo .snoitatnemelpmi ,rehtruF ti ISO/TR 9007: ,7891 Information processing systems -
sesserdda rehtien eht stnemeriuqer ,rof ron eht mrof Concepts and terminologies for the conceptual
,fo noitatnemucod fo such secivres dna .slocotorp schema and the information base.
IS 13672 : 1993
ISO/IEC 5459 : 1989
3 Definitions 5.3 roF eht sesoprup fo siht lanoitanretnI ,dradnatS
eht gniwollof snoitinifed .ylppa
3.1 roF eht sesoprup fo siht lanoitanretnI ,dradnatS
eht gniwollof smret sa denifed ni 0SI 8947 :ylppa 1.5.3 ,noitaicossa-noitacilppa :noitaicossa A -oc
evitarepo pihsnoitaler neewteb owt -ytitne-noitacilppa
)a ;ssecorp-noitacilppa snoitacovni rof eht esoprup fo noitacinummoc fo
noitamrofni dna noitanidro-oc fo rieht tnioj .noitarepo
)b ;ytitne-noitacilppa This pihsnoitaler is demrof yb eht egnahcxe fo
noitamrofni-lortnoc-locotorp-noitacilppa gnisu eht
c) ;noitcnuf-)N( noitatneserP .ecivreS
)d ;reyal-)N( 2.5.3 :txetnoc-noitacilppa A tes fo selur derahs ni
nommoc yb owt snoitacovni-ytitne-noitacilppa ni
)e ;locotorp-)N( redro ot elbane rieht evitarepo-oc noitarepo ees( .)7.5
9 ;noitamrofni-lortnoc-locotorp-)N( ETON 1 - An application-context is a shared concepkal
scnerna for the universe of discourse for communication.
)g ;tinu-atad-locotorp-)N(
3.5.3 :noitinifed-txetnoc-noitacilppa ehT noitpircsed
)h laer nepo ;metsys dna fo na .txetnoc-noitacilppa
)i refsnart .xatnys 4.5.3 noitacilppa txetnoc :eman A eman taht
ylsuougibmanu seifitnedi na -txetnoc-noitacilppa
2.3 roF eht sesoprup fo siht lanoitanretnI ,dradnatS .noitinifed
eht gniwollof smret sa denifed ni 0SI 3-8947 :ylppa
5.5.3 :noitacovni-ytitne-noitacilppa A specific
)a ;noitaicossa-)N( noitazilitu fo trap ro lla fo eht seitilibapac fo a nevig
ytitne-noitacilppa ni troppus fo eht snoitacinummoc
)b ;noitcnuf-yrotcerid-)N( stnemeriuqer fo na .nottacovni-ssecorp-noitacilppa
c) ;noitamrofni-gnisserdda-locotorp-)N( dna 6.5.3 :epyt-ytitne-noitacilppa A noitpircsed fo a
ssalc fo seititne-noitacilppa ni smret fo a tes fo
)d .sserdda-tniop-ssecca-ecivres-)N( seitilibapac denifed rof eht noitacilppA .reyaL

3.3 roF eht sesoprup fo siht lanoitanretnI ,dradnatS 7.5.3 :noitacovni-ssecorp-noitacilppa A specific

eht gniwollof smret sa denifed ni lSO/TR 7009 :ylppa noitazilitu fo trap ro lla fo eht seitilibapac fo a nevig
ssecorp-noitacilppa ni troppus fo a specific noisacco
)a lautpecnoC ;amehcS fo noitamrofni .gnissecorp
)b noitamrofnI ;esaB dna 8.5$ :epyt-ssecorp-noitacilppa A noitpircsed fo a
ssalc fo sessecorp-noitacilppa ni smret fo a tes fo
c) esrevinU fo .esruocsiD gnikrowretni .seitilibapac
4.3 roF eht sesoprup fo siht lanoitanretni ,dradnatS 9.5.3 :tnemele-ecivres-noitacilppa A tes fo
eht gniwollof smret sa denifed ni 0SI 2288 :ylppa snoitcnuf-noitacilppa taht sedivorp a ytilibapac rof eht
gnikrowtetni fo snoitacovni-ytitne-noitacilppa rof a
)a tcartsba ;xatnys dna specific .esoprup
)b noitatneserp .txetnoc NOTE 2 -This definition refines the original definition of
applicaticn-service-elements in IS0 7498.

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IS 13672 : 1993
ISO/IEC 5459 : 1989
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3.5.10 association control service element: nA 5.1.2 ehT noitacilppA reyaL is detroppus yb eht rewol
tnemele-ecivres-noitacilppa taht sedivorp eht sreyal ni .ISO nI ,ralucitrap eht noitatneserP reyaL
evisulcxe snaem rof gnihsilbatse dna gnitanimret lla sniatnoc seitilicaf rof gnitneserper noitamrofni
.snoitaicossa-noitacilppa degnahcxe neewteb seititne-noitacilppa (AEs), dna
eht noisseS reyaL sniatnoc smsinahcem taht yam
NOTE 3 - The functionality of this application-service- eb desu rof gnillortnoc snoitcaretni neewteb AEs.
element is defined in IS0 8649.
5.1.3 ehT noitacilppA reyaL differs morf eht rehto
11.5.3 elpitlum noitaicossa lortnoc :noitcnuf A sreyal fo OSI ni lareves tnatropmi .stcepser seititnE
tnenopmoc fo eht noitacovni-ytitne-noitacilppa taht ni eht noitacilppA reyaL era edam pu fo a noitcelloc fo
setanidro-oc eht snoitcaretni gnoma elpitlum stnemele-ecivres-noitacilppa (ASEs), hcae fo hcihw is
snoitaicossa nihtiw na noitac.ovni-ytitne-noitacilppa ni denifed yb a tes fo ecivres dna locotorp .sdradnats
redro ot edivorp a detanidro-oc .ecivres esehT ASEs era denibmoc ni suoirav syaw ot mrof
suoirav sepyt fo AEs. ehT noitacilppA ,reyaL sa eht
21.5.3 single association control function: ehT tsehgih reyal fo ,ISO seod ton edivorp snoitcennoc
tnenopmoc fo a elgnis noitaicossa tcejbo taht nihtiw eht noitacilppA .reyaL As a ,tluser spihsnoitaler
stneserper eht esu fo esoht selur ni eht -noitacilppa demrof yb eht refsnart fo noitamrofni neewteb -EA
txetnoc gninrecnoc snoitcaretni gnoma -noitacilppa snoitacovni ni eht noitacilppA reyaL evah ralucitrap
stnemele-ecivres nihtiw a elgnis noitaicossa .tcejbo .ecnacifingis
31.5.3 single association object: ehT noitcelloc fo 2.5 Fundamental concepts
sgniht ni na noitacovni-ytitne-noitacilppa detaler ot a
elgnis .noitaicossa-noitacilppa 1.2.5 nI 0SI ,8947 eht evitarepo-oc noitarepo fo laer
nepo smetsys is delledom ni smret fo eht snoitcaretni
4 Abbreviations neewteb sessecorp-noitacilppa (APs) ni eseht
.smetsys nA PA is na tcartsba noitatneserper fo
ACSE noitacilppA lortnoC ecivreS esoht stnemele fo a laer nepo metsys hcihw mrofrep
tnemelE noitamrofni gnissecorp rof a ralucitrap .noitacilppa
EA ytitne-noitacilppa gnidnepeD nopu eht erutan fo na ,noitacilppa na PA
PA ssecorp-noitacilppa yam ylno deen ot etacinummoc htiw rehto APs
APDU tinu-atad-locotorp-noitacilppa ;yltnettimretni ,revoerom eht tes fo APs devlovni ni
ICPA -lortnoc-locotorp-noitacilppa detubirtsid gnissecorp rof na noitacilppa yam egnahc
noitamrofni htiw .emit
ESA tnemele-ecivres-noitacilppa

FCAM elpitlum noitaicossa lortnoc 2.2.5 evitarepo-oC noitarepo neewteb APs seriuqer

noitcnuf taht yeht erahs tneiciffus noitamrofni ot tcaretni dna
OSI nepO smetsyS noitcennocretnI yrrac tuo gnissecorp seitivitca ni a elbitapmoc
SACF elgnis noitaicossa lortnoc noitcnuf .rennam
SAO elgnis noitaicossa tcejbo
NOTE -This shared information is referred to as a universe
5 Application Layer Concepts of discourse in the terminology of ISOfiR 9007. The
description of a universe of discourse is a conceptual
5.1 Introduction schema.
51.1 lanoitanretni sdradnatS rof OSI era dednetni ot 3.2.5 ehT noitamrofni gninimreted eht erutan fo eht
troppus eh? noitacinummoc stnemeriuqer fo snoitcaretni neewteb snoitacovni-PA is fo eerht :sdnik
snoitacilppa ,.e.i( noitamrofni gnissecorp )sksat
gniriuqer detanidro-oc gnissecorp seitivitca ni owt ro )a noitamrofnI gnibircsed eht tes fo stcejbo
erom laer nepo .smetsys nI ,ralucitrap sdradnats rof gnisu( siht mret ni its tsom lareneg )esnes hcihw
eht %0 noitacilppA reyaL enifed serudecorp rof eht
troppus fo detubirtsid noitamrofni .gnissecorp

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IS 13672 : 1993
ISO/lEC 9545 : 1989
era eht tcejbus fo detubirtsid noitamrofni noitanidro is edistuo eht epocs to siht lanoitanretnI
gnissecorp .seitivitca .dradnatS
)b noitamrofnI gnibircsed eht serudecorp ot eb 4.5 Application-Entities
desu ot tceffe noitacinummoc neewteb eht -PA
snoitacovni rof eht lortnoc dna noitanidro-oc fo 1.4.5 ehT stcepsa fo na PA hcihw deen ot eb nekat
detubirtsid noitamrofni .gnissecorp otni tnuocca rof eht esoprup fo OSI era detneserper
yb eno ro erom AEs. nA EA stneserper a tes fo OSI
c) noitamrofnI gnitneserper eht ten tceffe ,.e.i( noitacinummoc seitilibapac fo a ralucitrap .PA
)etats fo tsap snoitcaretni neewteb eht -PA
.snoitacovni 2.4.5 nA EA stneserper ,eno dna ylno ,eno PA ni eht
OSI .tnemnorivne tnereffiD APs yam eb detneserper
NOTE -This is a portion of the shared information base in yb AEs fo eht emas .epyt-EA nA PA yam eb
detneserper yb a tes fo AEs: hcae EA ni siht tes is fo a
the terminology of ISO/lR 9007.
tnereffid .epyt-EA
ehT esoprup fo OSI noitacilppA reyaL sdradnats is ot
edivorp snoitinifed fo serudecorp rof gnikrowretni 3.4.5 nA noitacovni-EA stneserper a specific esu fo
hcihw era detaler ot eseht eerht sdnik fo .noitamrofni eht seitilibapac fo na .EA tI stneserper specific
noitacinummoc seitivitca fo na noitacovni-PA dna is
4.2.5 ehT gnirutcurts fo eht noitacilppA reyaL otni na largetni trap fo taht .noitacovni-PA ehT stcepsa fo
stnenopmoc debircsed ni siht lanoitanretnI dradnatS na noitacovni-PA taht deen ot eb nekat otni tnuocca
seod ton ebircserp rehtehw eht noitamrofni deniatnoc rof eht sesoprup fo nepo smetsys noitcennocretni
ni ,yna eno fo eseht stnenopmoc is, ro is ,ton era detneserper yb eno ro erom .snoitacovni-EA
elbissecca ot yna rehto tnenopmoc taht yam eb
tneserp ni eht noitacovni-EA fo hcihw ti is a .trap 4.4.5 nA noitacovni-EA sledom eht noitacinummoc
snoitcnuf rehtegot htiw eht detaicossa etats
3.5 Application-Processes noitamrofni rof ralucitrap noitacinummoc seitivitca fo
na .noitacovni-PA hcuS seitivitca era dessergorp
1.3.5 nA PA stneserper a tes fo ,secruoser gnidulcni hguorht noitacinummoc neewteb snoitacovni-EA
gnissecorp ,secruoser nihtiw a laer nepo metsys taht detaler yb .snoitaicossa-noitacilppa
yam eb desu ot mrofrep a ralucitrap noitamrofni
gnissecorp ytivitca eht( PA tpecnoc is denifed ni 0SI 5.4.5 nA noitacovni-EA yam eb a rentrap ni a
.)8947 nA PA yam esinagro its snoitcaretni htiw rehto rebmun fo snoitaicossa-noitacilppa rehtie
APs ni revetahw yaw is yrassecen ot eveihca a ylevitucesnoc ro .yltnerrucnoc ehT rebmun fo eseht
ralucitrap noitamrofni gnissecorp :laog on stniartsnoc snoitaicossa-noitacilppa yam egnahc htiw .emit nI
era desopmi yb siht lanoitanretnI dradnatS rehtie no ,ralucitrap ereht yam eb sdoirep fo emit nehw na

eht mrof fo eseht snoitcaretni ro no eht elbissop noitacovni-EA is ton a ytrap ot yna -noitacilppa

spihsnoitaler taht yam tsixe neewteb .meht .snoitaicossa ehT emitefil fo na noitacovni-EA is ton
denimreted yb eht noitarud fo eht -noitacilppa
NOTE-For instance, an AP could schedule its interactions snoitaicossa ni hcihw ti is a .tnapicitrap
with other APs to take place either sequentially or
concurrently. 6.4.5 ehT etats noitamrofni delledom yb na -EA
noitacovni stcelfer eht ten tceffe fo its
2.3.5 ehT ytivitca fo a nevig PA is detneserper yb eno snoitacinummoc htiw rehto .snoitacovni-EA ehT
ro erom .snoitacovni-PA noitarepo-oC neewteb APs ecnetsixe fo siht etats noitamrofni sedivorp a sisab rof
sekat ecalp aiv spihsnoitaler dehsilbatse gnoma -PA gnilledom eht detanidro-oc evitucesnoc ro
.snoitacovni tA a ralucitrap ,emit na PA yam eb tnerrucnoc esu fo elpitlum .snoitaicossa-noitacilppa tI
detneserper yb ,enon eno ro erom .snoitacovni-PA osla sedivorp a sisab rof gnilledom a ,pihsnoitaler
nA noitacovni-PA is elbisnopser rof gnitanidro-oc its neewteb a riap fo ,snoitacovni-EA esohw noitarud is
snoitcaretni htiw rehto .snoitacovni-PA hcuS -oc ton dnuob ot eht emitefil fo a ralucitrap -noitacilppa
.noitaicossa roF ,elpmaxe siht sedivorp eno elbissop
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ISO/IEC 9545 : 1969
\
dohtem rof gnilledom eht noitaunitnoc fo na ytivitca gninrevog eht lautum noitacinummoc ruoivaheb fo
gniwollof eht ssol fo na .noitaicossa-noitacilppa eht ralucitrap riap fo .snoitacovni-EA
7.45 ehT emitefil fo na noitacovni-EA is dellortnoc NOTE _ The pair of AE-invocations in an application-
yb eht noitacovni-PA hcihw ti stneserper ni eht OSI association may have different roles; as a consequence they
.tnemnorivne nA noitacovni-PA yam evah a regnol may exhibit complementary rather than similar
emitefil naht yna ro lla fo its .snoitacovni-EA erehT communication behaviours.
yam eb orez ro erom snoitacovni-EA gnitneserper na
noitacovni-PA ta yna ralucitrap .emit 2.6.5 When noitacinummoc is deriuqer neewteb owt
AEs ot teem eht sdeen fo na ,noitacilppa eno ro erom
5.5 Application-Service-Elements snoitaicossa-noitacilppa era dehsilbatse neewteb
snoitacovni-EA fo eht owt AEs. nA noi!acovni-EA
1.5.5 nA ESA is a tes fo snoitcnuf taht sedivorp OSI yam troppus a rebmun fo snoitaicossa-noitacilppa
noitacinummoc seitilibapac rof eht gnikrowretni fo ,ylsuoenatlumis yllaitneuqes ro ,htob htiw eno ro
snoitacovni-EA rof a specific .esoprup erom rehto .snoitacovni-EA
3.6.5 nA reifitnedi-noitaicossa-noitacilppa yam eb
NOTE - Different functions can be grouped into one single
detaicossa htiw na .noitaicossa-noitacilppa This
ASE or split into several ASEs. In order to avoid
ASEs, reifitnedi-noitaicossa-noitacilppa is euqinu nihtiw eht
unnecessary proliferation of different the following
epocs fo eht riap fo detaicossa .snoitacovni-EA tI
should be considered:
sedivorp eht snaem ot yfitnedi eht detaler etats
ESA noitamrofni ni hcae .noitacovni-EA
a) grouping of functions into an must contain at
least all the functions and the corresponding APDUs
which are required for a protocol machine which is 7.5 Application-Context
logically complete and consistent in itself;
1.7.5 A riap fo snoitacovni-EA tsum evah derahs
ASEs ,egdelwonk dna wollof a nommoc tes fo selur taht
b) the grouping of functions into different has to
snrevog rieht .noitacinummoc hcuS a tes fo selur is
occur in such a way that the ASEs can be specified
dellac na .txetnoc-noitacilppa
independently of each other.
5.52 The capabilities fo na ESA llahs eb denifed yb NOTE - An application-context is a shared conceptual
eht noitacificeps fo a tes fo -atad-locotorp-noitacilppa schema for the universe of discourse for communication.
stinu (APDU) dna eht serudecorp gninrevog rieht
.esu This setutitsnoc eht locotorp-noitacilppa neewteb 2.7.5 nA noitaicossa-noitacilppa sah ylno eno

owt ASEs fo eht emas .dnik .txetnoc-noitacilppa ehT tes fo selur taht ekam pu eht

txetnoc-noitacilppa yam niatnoc selur rof noitaretla fo
3.5.5 nA EA yam eb desopmoc fo eno ro erom ASEs taht tes fo .selur ehT tes fo selur yam niatnoc
fo tnereffid sdnik ni redro ot ezilaer a specific ,sevitanretla rehtegot htiw selur rof gnitceles gnoma
etisopmoc noitacinummoc ytilibapac rof a ralucitrap eseht sevitanretla gnidrocca ot eht stnemeriuqer fo
.esoprup eht APs.
6.5 Application-Associations NOTE - The use of a rule to select among alternative rules
within an application-context does not constitute an
1.6.5 nA noitaicossa-noitacilppa is a evitarepo-oc
alteration of the application-context. However, the use of a
pihsnoitaler neewteb owt snoitacovni-EA rof eht
selection rule does change the state information
esoprup fo noitacinummoc fo noitamrofni dna -oc
maintained by AE-invocations with respect to an
noitanidro fo rieht tnioj .noitarepo This pihsnoitaler is
application-association,
demrof yb eht egnahcxe fo -locotorp-noitacilppa
noitamrofni-lortnoc (APCI) gnisu eht noitatneserP 3.7.5 nA txetnoc-noitacilppa sedulcni eht selur taht
.ecivreS ehT seitreporp fo siht pihsnoitaler era ebircsed a tes fo sgniht taht tsum eb nwonk yb htob
desiretcarahc yb a tes fo selur dna etats noitamrofni ,snoitacovni-EA spihsnoitaler gnoma esoht ,sgniht

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