9 - II May~ 1989Kista~

Stockholm~

Sweden

CASEBSBridges between Science~

Users alld Industry

Thefirst

NordicConference

onAdvanced

SystemsEngineering

Sponsored & hosted by

SISU~ Swedish Institute forSystelDs Develollment

&SSI~ The Swedish Society for

Information Processing

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CASEBS

The first NOl,dic Confe­rence on Advanced SystemsEngineering: will be held inStockholm, Sweden, May 9­11, 1989. The conference isjointly organized by SSI,- theSwedish Sociclyfor Informa­tionProccssing(associated toIFIP) and SISU, the SwedishInstitute for Systems Deve­lopment.

The conference will bejointly chaired by M:s AgnetaQwcrin, head of 55I, andProf Janis Bubenko Jr,SISU, HIT and Univer.sityof Stockholm.

Background:

The area of systems deve­lopment is rapidly evolving,both from theoretical andpractical points of view.

The scientific communityis currently undertakingqualified research concer­ning systems developmenttopics in a variety of con­texts. The value of this re­search is obvious and it iswidely felt that the everydaypraetitioners'work in analy­sis, design and implementa­tion would benefit from spee­ding up the knowledge trans­fer process.

New tools and methodsarecontinously put intoprac­tical usage. It is, however,felt that the neccssary feedback from the field ofpraeti­tioners is meagre.Morcovcr,central problemsin the field of practitioners,well ~suitable for scientifictreatment, are never madeknown to the scientific com­munity.

There exists an urgentneed to speed up the sharingof knowledge and to preparefor the building and disper­sal of know-how in order toproperly master and controlfuture systems developmentefforts.

Kista- "a Swedish Silicon Valley"

Kista is a Stockholm su­burb. It has the greatestconcentration of IT-workersin Sweden.

AiJn:

The basie aim for theCASE89 confereneeis tobridge the gap betweenthe industry and theresearch communitiesby increasing mutualunderstandingofprob­lems and possibilities.

The conference will con­centrate on exposing currenttrends and possibilities in theresearch field to the practi­tioner - as well as indicatingcurrent practical problemsand actual experiences ofmethods and tools for theresearch community.

Another aim is to exposethe growing market of soft­ware tools for systems deve­lopment, and the basic think­ing behind these, to those in­terested.

The conference will alsotouch on the topic of neededknowledge d(:velopment inthe field of practitioners,paving the road for fast ac­comodation of future re­search results.

Shortening the time spanbetween pubLicity ofresearchresults and practical appli­cation is mandatory.

Elect.oum- loeation for the CASEll9

conferenceElectrumin Kistais a buil­

dingcomplex gathcringinsti­tu tcs and university levcledu­cation within the IT (Infor­mation Technology) area.SISU one of the hosts for theconference has its officeshere. SICS, thc Swedish In­stitute for Computer Scicnceand 1M, the Swedish Institu­te for Microelectronics arealso located here: Parts ofthe Royal Institute of Tech­nology, are situated hcrc andthe department for Compu­ter and Systems Scicnce istentatively moving in thissummer.

SISU- Swedish Institnte

forSystems

Development.

The purpose of SISU is toact as a bridge between re­search institutions, such asuniversities and institutes ofhighcr learning, and theworld of industry, business,and administration. Theprimary goal of SISU is thcdevelopment of a high levelof competence for informa­tion systems developmentthroughout the public andprivate sectors.

SISU is jointly supportedby the National SwedishBoard for Technical Deve­lopment (STU) and by theAssociation of Supporters ofInformation Systems Deve­lopment in Sweden (ISVI).There are currently 37members of ISVI, represen­ting government depart­ments, puhlic and private in­dustries.

Further information:1\farianne Sindler,+46-11-7521600Box 1250,S-161. 211 Kista,Sweden.

SSI- Swedish Society (or

InformationI-rocessing

SSI is an association forprofessionals within the in­formation processing field aswell as the research andeducation fields. SSI workswith activities aimed at pro­fessional development for its2.800 members.

SSI is a member ofIFIP,the International Federationfor Information Processing.

Further information:Eva Lindberg,+46-11-2411555Box 399,S-101 25 Stockholm,Sweden.

Sponso.os

SISU's participating or­ganizations are all sharinganinterest in building and dis­seminating knowled gc withinthe information technologyarea, where CASE is a verycentral focus of interest.

ABB DATA,ARTIIUH YOUNG,AUGHUPPEN,DATA LOGIC,DIGITAL,ENEA,ERICSSON,FORSVARETS RATIONALI­SERINGSINSTITUT,FORSVARSSTABEN,IBM,INFOLOGICS,IBM CONSULT,KO~lMUNDATA,

MANDATOR,MIMEH SOFTWARE,PEAB,POSTEN,PROGHAMATOR,RIKSSKATTEVERKET,SAAB-SCANIA,SAS DATA,S-E-BANKEN,SKANDIA,SKF,SPADAB,STATSKONSULT,STATSKONTORET,SODRA SKOGSAGARNA,TELEVEIIKET,TELUB TEKNIK,UNISYS,VATTENFALL,VOLVO-DATA,VOLVO LASTVAGNAR,VOLVO PERSONVAGNAII

If you arc an employee inone of the mentioned organi­zations you should contactyour "SISU-contact person"to obtain information aboutthe very favourable condi­tions for your participating

Stockholm- in springtime

Early May is a periodwhen spring is under way.Light green and early flowersmake the City still more at­tractive. Often it is a periodof sunshine but be preparedfor rain.

The City offers plenty ofbeautiful views with manywaterfronts.

There are numerous re­staurants catering to diffe­rent tastes and spending le­vels.

Shoppingand sight-seeingare casy and variated.

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ou

Conference lligltligltts

The conference is orga-Mini Tutorialsnized in two parallcll ses-

sions. You are free to ehoo-MaySse between them.

Session themes On the fututOe

MaySof modelling

- why cnrrent CASE-tools Insist on

o On problems In snplJOrtlng 20 yearssystems old methods.development

I·roressor Coletteo CASE in theory Uolnnd or SOl-bonne,

and prnctice France.

Tools· May 10and methods

May 10 On the futuloeof CASE-toolso

o SystemsdevelolJntent Frans vnn Assche ofmodels Jnmes lUartin

o CASE tool Associutes~

structures nelgi",u.

o CASE tool May IICOnllJurisonmethods Ologanisational

• Business systems hnillicatiollsInodelling caused hy the fourth

generutioniUnn.IUachlne 0 environment.

l InterraceSimon 1I01l0way of

JUodelling 0 nCIl,United Kingdom.

•I'lay II

o CASE ConfcloenceI - to dare or not to sche.lule-

• • Inforluntion IUny 9resource 9:00 check-inmanngement in 10.00 0l.enlng- I·ractice ) 7.30 get-together-lJUrty.-. Knowledge 0 nils trnnsfer to- bused systems hotels and StoekllOb

- City• Tools 0

and IUethods JUny 10e

Social Events1):00 Stnrt

8 18:00 al.pr. blls- trnnsrer to- Get together the (;onfel-ence Dinller

evening of JUay 9.8 JUny IIf (;ollference dinner in 1hOO Start- a very Swedish 16:30 nils trnnsfer t

setting the evening or AirlJOrt & Stoekhohy j\lay 10. City

LanguageThe conference langua­

ge is English.

A Conference Credo

In Sweden many organi­zations find themselves in avery important decisionprocess concerning CASE­tools. We feel it is i.mportantto broaden the perspectivesaround this decision. - Themost common pitfall here isto regard the decision as achoice between differentCASE-tools. \Vewish toemp­hasize that the decision con­cernsmethodsaswell as tools,that is to say the softwareengineering process. Intro­ducing CASE makes neces­sary a considerable invest­ment in knowledge. We per­ceive that organizations en­tering the CASE scene arc atthe beginning of a maturityprocess which is importanto be aware of in order not tomake too many mistakes enroute.

The perspectives of thefuture are also irnportanknowledge concerningCASE-decisions. \Vhat witthe industry present tomorrow? Our reasoning says thathe products we see todayare going to be challenged byan outflow of greatly improved products and new features in today's products. Advances during the next deeade is in the hands of "Industryl'. We also perceive thanew products and advancedfeatures of new products arinvented in research centerand in researchoriented companics which are often spinoffs from research institu tesToday's scentific prototypewill constitute the basis 0

the tools and methods prcsented by industry the dayafter tomorrow, that is to sain the mid 1990-8.

Dead-linesApril 2 is last date for

the 100/0 deduction for earlyregistrants.

April 28 is .he da.e uptowhich we are sure to scndconflrmations. After that weare of cou.rse trying to.

Hotel accommodation isscarce. A fast reservation isrecommended.

Organization

OrguI.isilig cOlnlnitte

The work doneback.stage

I'rogram commlttc• sUI.port group

Benk. Wangler, SISU~lauias Hiillstrom,SISUE.oik Knudsen,SISUBel·til Andc.osson,Swedish Telecom

Lars Bergman, SISU,chairmanEva Lindberg, SSI·Marianne Sindler,SISU

Executiveprogrlllu CODlnlitte

Bjorn Nilsson, SISU,chairmanHakan Dahl,AnB Da••Christer Dahlgren,EricssonKur. Cladh,EleclroluxLars Sward,SASOrjan Odelhos, Datal.ogic

As this is a conference ai­ming at building bridges he­tween science and practice afew words ahout the processbehind CASE89 may be cla­rifying.

In late summer 1988 callfor letler-or-intent for paperswas sent ou 1. December andJanuary 1989 submitted pa­pers were reviewed normallyby thr"ee persons selected onbasis of familiarity with thesubject. In thercviewingpro­cess was indicated what cate­gories the paper would beapplicable for. The main ca­tegories are: scientific con­tribu tion, experience report,methods presentation andproduct presentation. - Inthe conference programthose categorics arc mixedand the pupcrs are presen­ted in sessions bascd on su­hject.

February 17 the executi­ve program committee madethe final decisions about theprogram.

REGJSTUATIONSTARTS 9:00

10:00 OPENING SESSION

011 the future of IUOIlelling- wilY eUIOloentcase-tools insist 011 SUI)I)OI°ting 20 years

old methods and tecbnicfUes.Ploofessor Colette Rollan(l, SOlobollne

ON PRORLEiUS IN SYS~ISDEVELOI"iUENT

P,"ofessor Rolland is currentlyal lhe University of PARTS­Sorbonne. She obtained herdoctors degree in 1971 andhas been doing research inComputer Science since1976. She now leads aresearch team on data basesand information systems onthe topics of design. models,specification languages,design methodologies andcomputer based design tools.

Colette is councilmember 0/AFCE1' (the frenchcomputing society) which sherepresenls on IFIll l'C8. Shealso acts as a consultant ofthe European Commission andfor NATO. She has publishedmany books on dala basesand infonnation system.'1 andhas seroed as the editor of twointernational conferenceproceedings.

• SVEA - A user driven and data drivensystems development method.

lng-Marie Stenstrom, IRM Consult AB,Bromma, Sweden

A presentation of a systems developmentmodel.

• The broad tool - FoundationBjorn Ivar Danielsen & Espen Brodin,Arthur Andersen & Co, Oslo, Norway.

A presentation of Systems development withCASE-tools and methods.

• Systems Developement:· Basic flawsin the current culture.. Ideas for recti­fying some of the problems.

Michael A. Kingsbury, N. Staffs Poly­technic, Stafford, United Kingdom

Systems Development - an idea presentation.n• The Mistakes - where systems deve­lopment does not support businessgoals.

Torsten Bergkvist, Swedish Telecom,Uppsala, Sweden

An personal Idea based on experience.

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CASE IN TIIEOUYAND I"RAC'I'ICE

• Information Systems Development: AFrame of Reference and Classifications.

Anders G. Nilsson, Institute V,Stockholm, Sweden

CASE tools and system development models.

•A framework for use and classificationof CASE-tools in systems analysis anda strategy for implementation.

Ingemar Lindqvist & Jan Hernback,Hernbiick & Lindqvist Konsult AB,Stockholm, Sweden

A methods presentation for the systemizing ofthe application area for CASE-tools.

•A CASEstudy in object-oriented know­ledge-base design using the KIWI sy­stem.

Dirk Vermeir, Univ. Instelling Antwer­pen, Wilrijk, Belgium

• Using PSLlPSA to Model InformationSystem Planning for The United StatesDepartment of the Army Headquarters.

Paul D. McDaniel, US.Army, Virginia,US.A.

An experience report on: Enterprise Modelingwith PSUPSA.

Information Systems DevelopmentSupporting Methodologies With Com­puterized Tools.

Bernt T. Bostrom, EPOC System AB,Stockholm, Sweden

A methods and tools presentation: CASE toolsand system development models.

• Computer Aided Database Design.Lore M. Kern-Bausch, GEMAP mbH,

Munchen, West GermanyA presentation of : Conceptuel Modelling Tools

How to succeed with the CASE-tool"DEFT" on the Macintosh.

Christina Lagerkvist, A~ Programator/ITR Institute, US.A. & Ake Nyberg, In­fotool, Stockholm, Sweden

An experience based presentalion of CASE­Tools and Methodology.

PROGRAMCOMMITTEE

• Bertil Andersson, Ph.D.,Swedish Telecom• Frode Aschim,SYSDECO AlS, Oslo• Erik Frokjaer, adjunkt,Datalogisk Inst, Universityof Cop~nhagen• Mats-Ake Hugoson,Prof., ern I ProgramatorAll, Goteborg• Christer Hullen, Ph.D.,University or Stockholm,Neolech An• Carl-Gustar Janson,Ph.D., SYSI...All, Univcl"si­ty of Stockholm• I-Iannu Kangassalo,Dept of Computer Scien­ce, University of Tampcre• Anita Kollerhaur, Ph.D.,University of Stockholm• Bengt Lundberg, Prof.,University of Gothenburg:• Kalle Lyytinen, Prof.,University of Jyv8skyHi• Lars Soderlund, Ph.D.,University of Stockholm,Neolcch An• Arne SOlvberg, Prof.,NTH, Trondheim

09.00 START

ON THE FUTURE OF CASE TOOLSFranz van Assche,

JanlCs Martin Associates, BelgiuI11

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Frans van Assche is currentlyPrincipal Consultant and theTechnicalltfanager ofJarne~ltfartin Associates Belgium.

After obtaining auniversity degree in Husines.~

Administration, Engineeringand ltfanagement Informaticsat the University ofLeaven,he wa~ employed at thisuniversity as a researchassistant. IIe then joinedControl Data Corporation(CDC) where he was one ofthe designers of the NIAMmethodology. At the CDCData ltfanagerncnt Researchlab he was in charge of thefirst CASE tool for the NIAMmethodology.

At this moment, Franllis project leader of the (ESPRIT project 928(RUBRIC),ofwhich]a=.ltlartin Associates is the primecontractor, leading aconsortium of academia andsoftware industries. Frans issecretary of IFIP W8.1.11e isalso professor at the Schoolof Economics St. Aloysius,Rru.uels, where he lectures acourse on Econontics ofExpert System.

lie has made manypulJlications in the field ofInformation SystemMethodologies and has beenconsulting and lecturing inmost countries of Europe, inthe two Americas and the FarEast.

UAN - ~IACJDNCE INTERFACE

FRAME - a concept for documentationat ABB Data

Lars Hemingstam, Kreativ Systemut­veckling AB, Stockholm, Sweden

Documentation. Systems Development.

COMIC: A system for conceptual model­ling and information construction

Hannu Kangassalo, University ofTampere, Tampere, Finland

~IODELLING

Edition of structured documents in anhypertext environment.

J.L. Vignaud, Cap Sogeti Innovation,Meylan, France

Documentation support.

Use of structured system developmentmethods and supporting CASE tools forspecification of the human computer in­terface: What can and cannot be done.

Alistair Sutcliffe, City University, Lon­don, United Kingdom

Use of CASE tools for Hel specification.

Lexivisual Interfaces - the New LookAnita Kollerbaur, Stockholms universi­

- tet, Stockholm, Sweden

A Generic Model for Dialog Specifica­tion

Laurence Rouille, IRISA, Rennes,France

System development models.

SYST~'ISDEVELOP~IENT

~IODELS

CASE TOOLS'I'RUCTUUES

Loosely integrated sets of CASE tools(based on experiences of building twoloosely integrated CASE tool sets ha­ving advanced user interfaces).

Kari Kansala, VIT, Helsinki, Fin-land

CASE tools.

Building a Highly Integrated Develop­ment Environment Using PreexistingParts.

Dick Schefstrom, Luletl, Sweden

IB - The Information Bus: A MultilayeredObject Oriented Interface Descriptionof Information Bases for Remote Appli­cation

Bjorn Skjellaug, 0 NO, Oslo, NorwayInformation Resource Management

PCTE - Solving CASE Data Integration.Kim. Portman, Nokia Research Center,Espoo, Finland

The relationship between models, met­hods and system development tools(i.e. case tools and 4GL).

Lillian Dahl, FDC & Rudi Olsson,Swedish defense, Stockholm, Sweden

Presentationaf a Systems Development Modelwhich is now "standard" within the Swedishdefense as well as being supported on the CivilServices side.

CASE TOOL CO~Il'A1USON

~rn'J'1I0nS

How to test and compare CASE tools.Tapani Kinnula, SISU, Kista, Sweden

Modelling CASE environments inSystems Development.

Kalle Lyytinen, Kari Smolander & Veli­Pekka Tahvanainen, Univ. of Jyvas­kyla, Jyvaskyla, Finland

Metamodeling and CASE tools.

The RUBIS SystemJean-Yves Lingat, Corine Cauvet, Co­lette Rolland, Thomson InformatiqueSer0ces, Paris,France

The income approach for conceptualmodelling and prototyping of informa­tion systems.

Andreas Oberweis, Universitat Mann­heim, Mannheim, West Germany

?onceptual Modelling, Prototyping.

BUSIi\'ESS SYST~'IS

Modelling the Business SystemPaul Lindgreen, University ofCopenhagen, Kopenhamn, Danmark

09:00 STAnT

ORGANISATIONAL IMPLICATIONS CAUSED BYTIlE FOURTII GENERATION ENVmONMENT

Sil1lollllolloway~

DCE~Lolldoll

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Principal Consultant, DeEInformation ~1anagement

Consultancy.Simon IIolloway is currently a

principal consultantspecialising in Fourth

Generation systems, datadictionaries, CASE tools and

analYllis methodsdevelopment. Simon worked

for a plastics company in1979, inistially as a

commercial systems analystand then all a daLa analyst.11e joined a life assurance

company as a databaseadministrator in 1980 and

from 1983 worked forApplied Data Research as a

database consultant. In1979, Sirrwnjoined the

British Computer Society'sDatabase Specialist group of

which he was the chairmanfrom 1984 until he retiredfrom the position in carly

1988 to become vice­chairman. ltfr llolloway is theauthor of a number ofpapers

on data dictionaries, FourthGeneration Software and

methodologies and is agraduate in Metallurgy with

Indu8tial Economics.

CASE- '1'0 DAIlE on NOT TO

How CASE-tools and methods relate toeach other - experiences.

Goran Lustig, SPAOAB,Stockholm, Sweden

A 25 megaSEK investment the systems deve­lopment process is at hand for Spadab.

The good CASE: a result oriented life­cycle, proper methods and supportingtools.

Gunnar Nilsson, CAP GEMINI BRA AB,Stockholm, Sweden

Life-CYCle, methods + CASE.

What makes CASE work?Miles Welter, Strategy Manager, IBMLaboratories, Santa Teresa

IBM's application development, trends & direc­tions

1l''FODIATION UESOUnCEIUANAGEl\ffiNT IN I'UACTICE

IRM shall support corporate objectivesand must set a framework for CASE­tools.

Jaro Potucek, Vagverket,Borlange, Sweden

CASE-tools in IRM-environment

PEAB:s ertarenheter avail etablera enfunktion for systemsamordning, baseradpA principerna bakom Information Re­source Management.

Fredrik Runnqvist, PEAB & 6rjan Gra­pe, SAGUS AB

Jarfalla & Stockholm, SwedenInformation Resource Management

IRMA· Information Resource ManagementArchitecture; a data-driven method usedin planning the overall system architec­ture

Eskil Swende, IRM Consult AB,Bromma, Sweden

IRM

KNO"'LEI)GE BASED SYS'l'EI\IS

The role of knowledge based systemsto enhance user participation in thesystems development process.

Gian M. Medri, PK-Banken,Stockholm, Sweden

Knowledge based systems. Systems deve­lopment.

A knowledge-based support systemfor the reuse of structured specifica­tions and designs of embedded com­puter systems.

Tuomas Ihme, VTT,Oulu, Finland

Knowledge-based Support for Software Reu­se.

A Knowledge Based System for Re­quirements Capture and Analysis.

Peri Loucopoulos, UMIST,Manchester, United Kingdom

Knowledge based systems in SystemsDesign.

An expert system for semantic and re­lational database design

Mokrane Bouzeghoub, Univ.P.etM.Curie, Versailles, France

A knowledge-based system for em·bedded computer analysis & design

Kari Hakkarainen, T.Res.CentreFinland, Oulu, Finland

TOOLS AND 1\11.'YIIODS

ALGRES: An Advanced Database Sy­stem for Complex Applications.

Roberto Zicari, Politecnico di Milano,Milano, Italy

Advanced Database for CASE

"Glueing CASE-Tools TOQether in aHeterogeneous CASE-EnVironment"

Gunter R. Koch, Petra Luchner &Franz Engelmann, Zi Ind. Inform.GmbH, Freiburg, W. Germany

CASE Integration (CASE ToolsfTool Shells)

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Addresses:

CASE89 - SSIBox 399S-101 25 Stockholm, Sweden+46-8-24 85 55

Premiums for fast actionA 10 % deduction on fees is availa­

ble for pre-registrations made beforeApril 3.

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Partial/Shared RegistrationsThere is no partial registration fee

and credit cannot be given for latearrival or early .terminationof atten­dance. One registration cannot beshared by two persons.

On-Site RegistrationOn-Site Registration will he avai­

lable May 9 - 08:00 - 17.00and during conference hours May

10 and 11. The fee will be augmentedhy 10 % as compared with the normalfee.

Press Registration

Worlcing press is welcome to at­tend the CASE89 conference. A press­room is going to be available for regi- '"stered press. Please submit your ere.:.dentials to CASE89 clo SISU in ad­vance or at the reception desk atconference time.

CancellationsAll cancellations must be in wri­

ting. Cancellations received beforeApril 25: 50 % offee will be refunded.Cancellations after that: no refundcan be made. Refunds will be proces­sed and mailed after June 1. st, 1989.

PaymentsMter receiving your registration

form SSI is will invoice you for pay­ment in advance of the conference't ""'Payment instructions are given at that )time.

Hotel rooms are paid by the guest.

ConfinnationAll registrations received up to

April 28 will be confirmed by mail.HoteH reservations will be confirmedseparately after our receiving thereservation and our checking with thehotel.

CASE89 - SISUBox 1250S-164 28 Kisla, Sweden+4·6-8-7521600 (Tphn)+46-8-7526800 (Fax)

All Conference participants (in­cluding delegates, presenters, spea­kers and panelists) must register, andadvance registration is highly recom­mended to assure space availabilityand reduce cost. Use the registrationform in this program to pre-registerto the conference and to malee yourhotel reservations.

Registration fees, in SEK (Swedish

crowns):

The indicated fees include coffe,lunch, proceedings, get together par­ty and free transportation with thebus shuttle provided by CASE89.

PilE - UEGISTIlA'l'IONPIlOCEUUUES

Banks and minor shoppingKista Centrum at 5 minutes walk

from Electrum provides 5 bank offi­ces, post office and several shops.

Banking hours 9:30 to 15:00.Shops 9:00 or 10:00 to 18:00.

Car rentalRental cars are available at the

Arlanda Airport and through thehotels. - 'Ve do· not recommend co­ming in car - parking space is veryscarce in Kis ta.

OTImll TUAVEL1l\'l<'OlliUA'l'lON

SubwayYou could always take the suhway

from Stockholm Central Station toKista. The travelling time is around20 minutes and you should add for a15 minutes walk from Kista subwaystation to the Conference in Elec­trum. The fare is around 20 SEK sin­gle.

From Electrum to the ConferenceDinner in the evening.

From the Conference dinner tothe hotels and to the Central Stationin the night.

May 11,from the hotels and from the Cen­

tral Station in the morning to Elec­trum.

Mter the closing of the Conferen­ce; to Arlanda Airport and to theCentral Station of Stockhohn.

• Regular fee 5.800 SEK, wilhreduction for 2 or more persons co­ming from the same organisation regi­stered on the same form.

• Students and employees of uni­versities and equivalent organisations1.400 SEK.

Conference dinner 400 SEK.

Hotel room payment is made byyou directly at the hotel. Wellknowncredit cards arc accepted: If you areuncertain, please contact SSI.

Airport

Shuttle service from Arlanda Air­port to the central part of Stockholmis frequent and easy to usc. Cost isaround 30 SEK single direction. Oneshuttle line includes I(ista, the placefor the CASE89 conference.

Shared Limousine service is about150-200 SEK per person.

T~xi is about 200 - 300 SEK de­pending on traffic intensity.

Hotel reservations

Use the enclosed Conference regi­stration/reservation form and returnto 55I - CASE89 to make hotel reser­vation. Also contact 551 for makingreservation or changes in reserva­tions. Please reserve as early as possi­ble.

GUOUl\'J)TItANSl"OUTATION

Block reservations are made athotels in the central parts of the Cityof Stockholm. Thc rate is 900 - 1000SEI( per night. Breakfastis normallyincluded. Room standard includesTV, private hath and direct dialphone. Sauna bath and restaurantwhithin the hotel premises isnormal.Check-out time is normally12:00.

ACCOiUIUODATIONS

GENERALINFORMATION

Economy lodging is scarce becau­se it is a very popular conferenceperiod. We are maldng efforts to gethold of rooms in this category hut canmalte no promises at the time of prin­ting.

CASE89 - bus shulLleTo malec your transportation ea­

sier we are arranging bus transporta­tion during thc conference.

May 9from Arlanda Airport and from

the Central Station of Stockholm tothe CASE89 conference in Electrum­house in.I<.ista.

From Electrum to the hotels andto the Central Station in the evening.

May 10,from the hotels and from the

Central Station in the morning toElectrum.

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CASEBSThe first Nordic Conference on Advanced Systems Engineering

May 9 • 11, 1989Electrum

KlstaSweden

Table of Contents

General scheduleConference schedule

Authors in alphabetical orderDelegatesExhibition

Preface by the ChairpersonsSome words from the Program Committee Chairman

On SISUConference proceedings ordered by day and session

CASEBS

Box 1250, S·164 28 Klsta, SwedenTelephone +46·8·752 16 00

Telefax +46·8·7526800

CASES9 -Genel'ul sehel1ule • 890508

Use the ollilorlunlt~' • take the breal' with u cUll of eoffee ,'Isitiug theexhibitiou.

May 9

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09.00 • 10.00

10.00

12.45 • 14.0015.30 - 16.00

17.158/17.30Y

17.30· 19.30

19.30 -

10 IlIaj

08.15

09.00

10.15·10.4512.30 • 14.0015.15 - 15.45

17.15

18.00 1Illllrox.

later

11 IlIaj

08.15

09.00

10.15 - 10.4512.25 - 13.1014.05 - 14.30

16.05

16.30

Registration & Coffee

The CASE89 Conference ollenlng session Inthe ltElectrulnsnlen II

LunchCoffee

Confercnce enlls for the c1at~'

1Illllrox. Get-together

nus c1e'Ulrtures for the hotels 111\11Stockholm Central Station

nus c1ellarlures from Sheraton hotel.

Conference start lu the Electrumsalen.

CoffeeLunchCoffee

Conference enc1s for the c1a~'

nus Ilellurture for the Conference Dinnco'

nus shuttle to Sheraton hotel 11llc1 StockholmCentral St"tion

nus c1ellartures from Sheraton hotel.

Conference shirt in the ElectrulIlsalcn.

CoffeeLunchCoffee

Conlco'ence closing In the Electrumsalen.

nus Ilellartures lor Arlanc1a AirllOrt (20-25 min)IInc1 lor SlocldlOlm Cenh'ul Station (20·35 minc1ellel\lllng on traHic intensit.y).

Sweden along with Finland noLes the highest per Capil:l coffe consumtion of the world.

CASEB9 ~ Con'erence tlmo schedule89·05·08

OAY sus START [1,:0

1 A 10,30 11,30

On lhe fulure of modelJlng - why curren'CASE-tool. Insls' on supporllng 20 ys'" oldmslhods .nd technlquBS.

Authors

Co/eUe RolI.nd, Unlv de Parfs,

ENO

lESS START

The bloed toof - Foundel/on.

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ENO

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Karin Beck, GE1.fAP mbH

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Ingomar Lfndqv/st, Helnback &- SPEAICER

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Bengt Agering ADB·Gruppen ABUlf Alpsten IBM Svenska ABJan Alriksson MIMER Software ABChristina Allin Saab·Scania Flygdi"i·sionenLeif Anmefell Tekniska HogskolanErling S Andersen DatahogskolenRudolf Andersen Norges TekniskeHogskoleAnniea Andersson INFOLOGICS ABChristel' Andersson RiksskatteverketGoran Andersson VagverketHans Andersson Jarnia ABJan Andersson RiksskatteverketLars G Andersson StatskontoretSven·Olof Andersson EricssonTelecom ABWilhelm Arnor Decemo ABAgneta Auvoja Televerket StockholmMadeleine Barthelsson TekniskaHogskolanKarin Berg SkandiaDataAgneta Derghem Tele"erket Stock·holmPiir Dergsten SISUKaarina Deskow Tekniska HogskolanS"end lllinkenbergNielsen Tele"er·kets EDD·Tjeneste VestAke 1lI0mbergsson SAS DataRobert Bohagen Kommundata ADAnn·Charlotte Doltshauser ELLEM·TEL Utvecklings ADSigrid Dorgstrom VattenfallDengt Drimberg Skandia DataDa"id Druce Sparekassernes Data·centerRogerio Carapuca INESCrrechnicalUni"ersit~·of LisbonHans Carlsson Miracle TechnologiesAllIngemar Carlsson SAS DataPer.Olof Carlsson Televerket Stock·holmRoland Carlsson Ericsson Telecom

ABSven.Eric Carlsson CFDFred Collins SYSTECON ABlljom·O"e Dagnesjo ModulfOretagenIngemar Dahlgren AF.MandatorPar Danielsson AU·Gruppen AllMarianne Dcgerman Skandia DataOrjan Dylen InS An

HAkan Edler Ergodata ADBertil Edner Ericsson Radio SystemsAllBjorn Ehnberg WASA ForsakringLars.Ake Eimer SKF Datasel'Yice AllKurt Ekdahl IBMNordiska Labora·torierChristel' Eklund AU·System NetworkABSusanne Ekroth StatskontoretJan Eigstrom Tele"erkel ADB·Ser"iceMagnus Elieson Datema System ABRonny Engelin Program.Makar,,"ABHAkon Erdal Tele"erkets EDB·Tjeneste VestPer Ericsson SpadabBjorn Eriksson Ilohlins Organisa·tionskonsullerMartin Erlandsson Datema S~'stem

AllDick Ernmark Ericsson Telecom ABBo·Lennart Eskilsson Program·Ma­karna ABAgne Fasth Unisys AllGert Forsling ModulforetagenBo Friman HandelsbankenClaes Fristrom ORIGO Administra·ti" Ut"eckling AllUlla Fritjofsson AilLM EricssonAnders Fungdal Skandia DataGirish Gautam IllM S"enska ABE"a Gimbring CFDIlritt Goldberg Progl'amator Stock·holm AllHAkan Gullberg EricssonLars Gunnarsson Saab-Scania ABSten Gunnarsson ELLEMTEL Ut·

"ecklings ABJan Gustafsson Decerno ABMats Roger Gust.,fsson SISUSture GlIstafsson NordbankenIlengt Gusta"sson Nobel DataserviceLeif Gusta"sson Metod & LogikKonsultAnders Gohlman SAS DataUlf HallbeckMats Hammarstedt Riksskatte"erketShlletsu Hanata NTT Nippon Tele·g,'aph and Telephone CorpBille Hanell Prog,'amator StockholmAll

CASEBS - Delegatee

Per Hansen Vol"oPersOlt"agnar AllRoger Hegg EricssonJan Peter Heje Copenhagen School ofEconomic & BusinessE"a Henriksson Tele"erket Stock·holmKristin Holmberg SpadabHenrik Horowitz StatskontoretGoran Husman ELLEMTEL Ut"eck·lings ABJane HAkansson Skandia DataPertti Hanninen Skandia DataBengt Hoglund NMP·CADlInstitutetfOr MikroelektronikThomas Hoglund StatskontoretJon Ingason Tekniska HogskolanMats IreneusChristina Jacobsson IBM S"enskaAllLennart Jakobsson Ericsson TelecomADKirsti Jalasoja ATK·lnstituuttiBritt·Marie Johansson AU·GruppenABGunnar Johansson WASA Forsa­kringInga.llritt Johansson EricssonTelecomLars Ake Johansson SISURose·Marie Johansson SISUStig Johansson SISUB Johnsson SkandiaDataChristina Jonsson Tekniska Hogsko­

IanAllan Junfors AU·Gruppen AllLotta Jaderberg CFDSten Kallin IBM S"enska AllStamm Kihl SpadabAke Klangefeldt Unis~'s AllA Ragnar Kling ELLEMTEL Ut·"ecklings ABLeif KIOf"er ELLEMTEL Utveck·lings ABLisbeth Koosth Vol"o Person"agnarAllTuula Ko"ala SpadabKerstin Kronberg Tele"erket ADIl­ServiceMagne Kallstrom Vol"o Last"agnarAllAsa Laestadins Tele"erketChrister Larsson Vag"erketLennarl Larsson Telub Teknik All

CASESS - Delegatee

Martin Larsson lDMSvenska ABSongping Lee MobelinstitutetJannika LefevreMats Legert Sysdeco A/SMaria Lennman INFOLOGICS ABMarit Leringe Skandia DataLeif Liljeqvist Televerket StockholmAnn-Marie Lind-Sylwan SpadabEva Lindh Ume~Unh'ersite

Anders Lindkvist Philips Elektroni­kindustrier ABJaak Linkhorst VagverketTommy Ljunggren CFDBjorn LjunglOf Televerket ADB­ServiceLars Loos(rom Ericsson RadarEletronics ABNair Lopez SpadabJohanna Lorentzi NMP-CAD!Institutet fOr MikroeleklronikRichard Lundberg StatskontorelPer Lundholm NMP-CAD!lnstituletfOr MikroelektronikBo Lllndqvisl Program-Makarna ABBo Lyckeg~rd Ericsson Radar Eletro­nics ABAnders Lyngarlh TSL-Data ABOlav Madland Televerkets EDB­Tjeneste VestEivind Madsen Nordic Eletronic

Systems A/SBerlil Magner VattenfallMaria Magnusson Ume~ UniversitetErik Malmborg Statistiska Cent,'al­byr~n

Charlotte Malther Sparekassel'llesDatacenterAnette Matseus Ericsson RadioS)'stems ABChristian Meck TeleLogicMaud Meissner lDM Svenska ABChrister Mohlin Arthur Andersen &

Co Consultants ABArne Morell ELLEMTEL Utveck­lings ABBritt-Marie Mork StatskontoretBengt Nilsson EnatOl' S)'d ABLars A Nilsson Philips Elektronikin­dustrier ABClaes Norelii,' Ericsson Radar Elec­tronics All

Bjorn Noren EricssonBror Noren VattenfallKerstin Norrby StatskontoretOssi Numminen University ofTam·pereAnders Nygren Industri-Matematik

System ABSubhash Oberoi Televerket Natavdel­ningenSigyn Ohlsson SJ·DataEva Olsson PhilipsElektronikindu­strier ABIngela Olsson INFOLOGICS ABInger Olsson ADB-kontoret i Gote­borgJonas Olsson SISUIngemar Pernevik Volvo LastvagnarABLeif Petersson Decerno AbLars Qvarfort Televerket Natavdel­IlingcnOlle Rahm StatskontoretKarin Randerz Stockholms Universi­tetBirger Rapp Universitetet i Linko,pingAnn Rehbinder Tekniska HogskolanDavid Rolleberg Tekniska HogskolanBosse Rydh Tekniska HogskolanGoran Rydmark Industri-MatematikSystem ABGunnar Sandberg Kommundata AllKarin Schilt WASALivG S Schouten RijkswaterslaatKjell Sch)'berg Hewlett-PackardSverige ABArmin Seidel NMP·CADlInstitutetfOr Mik.'oelektronikNorbert Shimer MIMER SoftwareABMalmcolm Sjiidahl ProgramatorStockholm ABFredrik Skogby Stockholms Options­marknad OMFK ABllo Skogling Ericsson ProgramaticABBirgitta Spiridon Philips Elektroni·kindnstrier AllLenll Stensjo Hogskolan Falun!DOI'HingeKrystyna Strand Handelsbanken

Bo Svensson SpadabEva Soderlind SpadabTorbjorn SOderlund Teleub TeknikAllThomas Tenevall TeleLOGIC Sunds­vall ABLeo Terevainen Datema System ABMagnus Thall Televerket Natavdel­ningenVello Thomasson UDACLars Thorseu ELLEMTEL Utveck­lings ABEva Tilsjo Televerket StockholmAnnica Viksten Telub Teknik ABNils G Viren AF.MandatorMarkku VaanenJan-Erik Wallin Ericsson TelecomABSven-Ilertil Wallin AU-Gruppen ABLone WeimannJappe Sparekasser­nes DatacenterRolf Welin SkandiaDalaGoran Wendelius SAS DalaRoland Wikstrom Saab-Scania Allllarbro Winstrand VagverketLennart Warn NobelDatasel'l'iceJianhua Yang Norges TekniskeHiigskoleMingwei Yang Norges TekniskeHogskulelljorn Anst,'and Software AG SverigeAllInga Asberg StatskontoretLeif Odmark ELLEMTEL Utl'eck­lings All

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PREFACE

The lead time from research results in the area of information systems engineering tobroad exploitation and use of the results in business and industry is often more than 15years. This is manifested by, for instance, relational data base theories, semantic datamodeling approaches, and first steps towards tools which today are known as CASE,which all were introduced in the early seventies. Except for impressive graphics interfa­ces there is, from a methodological point of view, very little new in today's commercialproducts and selvices.

In order to improve their competitiveness, organizations feel a great need to developtheir information processing and management strategy for the nineties or even the 2000.Development of such a strategy, of course, needs good predictions about the informationtechnology available in the future and ways to introduce new technology in conselvativeorganizations. In order to make such predictions, deep insights on current use of IT andcurrent results as well as trends in IT research are mandatory. Skills in "strategy ma­king" alone are not sufficient.

One objective of CASE89 is to contribute to a deeper insight in this respect by exposingcurrent scientific research of high quality as well as by reporting on experiences andideas from advanced applications in business and industry. Another objective is to con­tribute to a much improved communication between the research and the business andindustry conununities. The third objective is to stimulate increased participation by theNordic countries in international research programmes, such as ESPRIT. The CASE89conference programme looks very promising and encouraging in all these respects. It isprobably one of the few conferences held, where a true balance seems to exist betweenscientific contributions and contributions from business, industry and administration.

CASE89 is also the first truly intemational conference on inforn1ation systems enginee­ring held in Sweden. It has ben made possible thanks to all persons, world wide, whohave supported it by contributing many interesting and high quality papers. Credit mustalso be given to our Nordic colleagues who have devoted much of their time on revie­wing. The staffs of SSI and SISU have with great energy contributed in technical as wellas in administrative matters.

A special acknowledgement and thanks should be given the program chairman Dr.Bjorn Nilsson, the organization chaiIman Lars Bergman, Marianne Sindler, and EvaLindberg for taking the main work-load starting from Call for Papers to actually runningthis conference.

Agneta QwerinSwedish Society forInformation Processing

Janis Bubenko jrSwedish Institute forSystems Development

General conference chairpersons

Some wo....ds f ....om the CASE89 P ....og....em Committee Chai....man

The role of CASE 89 is to act as a catalyst in the interaction between research and indusl1'y in mattersconcerning software engineering. In practice, this is done in three ways. The first is to expose contem­porary scientific research and thinking to the business and industry and to explore possible implica­

tions thereof. The second is to report actual business and industry experience of methods and productsand to expose problems, such as the absence of methods for relevant classes of problems, therebystimulating the migration of research into even more useful areas. The third is to present actual met­hods and products and expose experiences thereof.

The role of the program committee for CASE 89 is to find a proper balance where contributions fromdifferent parties can best fertilize one another. At the same time, as some papers are conventionalscientific contributions, normal reviewing standards have been applied. To sum it up, the differencefrom nomla! procedure is that each paper has been reviewed as being either a scientific contribution,a report/evaluation from the practitioner, a methods presentation or a product presentation.

In some cases, this has led to situations where a paper, regarded as a scientific contribution, has beenrejected but, regarded as a methods or product presentation, has been accepted with flying colors. Inother cases, papers possibly meant to be experience repOlts or methods presentations has met the morestringent demands of a scientific contribution.

On behalf of the executive program committee, I would like to thank all the reviewers who performedthe actual evaluation of the papers in so many dimensions without complaints, thereby making anuncommonly interesting mixture of presentations possible.

Malls AhlsenRudolf AndersenBertH AnderssonElving AJ'IIoldsson

Frode AschimAnders BjoJ'llerstedtHakan DahlRoland DahlInge DahlbergChristel' Dahlgren

Erik FrokjaerAnders FungdalKurt GladhMats R GustafssonLars Hellberg

Helge Holmeno

Mats·Ake HugosonChristel' Hulten

Mattias HallstromCarl-Gustaf Jansson

oLars·Ake JohanssonStig JohanssonLeif JungstalHannu KangassaloBarbara Klockare

Erik KnudsenAnita Kollerbaur

Magne KallstromBo LindahlEva Lindencrona

Paul Lindgreen

Jesper LundhBengt Lundberg

Ove LundvallKalle Ln,tinenGunnar Nilsson

Bjorn NorenMoira NorrieOrjan OdelhogLars OlssonPeter RosengrenGunnar SandbergLars SwardLars SoderlundArne SolvbergPer TidenBenkt WanglerHans Willars

oVlf Asen

Bjol'll Nilsson

SISUSwedish Institute for Systems Development

(

The Swedish Institute for Systems Development(SISU), established 1985, is a non-profit organisa­tion conducting advanced research in the area ofinformation systems development. It is jointlysupported by the National Swedish Board forTeclmical Development (STU), and by the Asso­ciation of Supporters of Information SystemsDevelopment in Sweden (ISVI). There are cur­rently 36 members of ISVI, who represent govern­ment agencies, public and private industries, spe­cifically the computing industry, and bankingand insurance. SISU employs 30 researchers andhas a tum-over of 6 million US$ per year.

( J

Swedish Institute for Systems Development

Box 1250, 5-164 28 Kista, Sweden

Phone: 46·8·75216 00

Fax: +46·S,752 68 00

SISU

AIMS AND SCOPE

ORGANISATION

MAIN PROJECTS ANDACTIVITIES

The purpose of SISU is to act as a bridge between research in infor­mation technology and the Swedish industry, business, and publicadministration. The goal ofSISU is the developmentofknowledgeand competence in the area of information systems development,and to promote its transfer to the supporting organisations. SISU:sresearch focuses on advanced methods and tools to improve thedesign and to facilitate the use of next generation, data-intensiveinformation systems. A major activity is to transfer researchfindings to the practical plane in close cooperation with thesupporting organisations. SISU personnel is also actively engagedin educational programs at the Royal Institute of Technology andat the University of Stockholm.

SISU is organised in four departments

• Information and knowledge transfer• Methods for information system modeling• Computer Aided Information Systems Engineering• Knowledge Based Systems

Projects (see below) are normally run in cooperation with industryand staffed by persons from more than one department.

The research directions of SISU are determined by three-year pro­grams, established by STU and ISVI. Currently, the main activitiesand projects are:

• INFORMATION: A monthly newsletter SISU Informa isdistributed to all interested individuals of the ISVI. The cur­rent circulation is more than 600. The magazine SISU Analysprovides entry to important new information technolo~y

areas by presenting surveys, practical experiences, rese .hdirections, and available literature. Both publications are inSwedish. General results and findings of SISU project activi­ties are published in a SISU Report series.

\• EDUCATION: SISU provides education primarily to its sup-

porting organisations. Introductory as well as advancedcourses on topics such as COllceptual Modelillg, Systems Deve­lopmellt Methodologies, Data Base Tecllllologtj, Data Base Mode­lillg alld Desigll, Computer-Aided Systems Developmellt, Distri­buted Databases, Office Illformatioll System Technology, ArtificialIlltelligwce, Logic Programmillg, Kllowledge Engineerillg, alldExpert Systems have been presented. Numerous conferences,seminars, and tutorials have been held featuring internatio­nally well known experts. The next major event is CASE89 ­an international Conference on Advanced Systems Enginee­ring, to be held May 9-11, 1989 in Stockholm.

I

•

•

•

•

METHOD DEVELOPMENT AND SUPPORT: An integra­ted, coherent framework and (object oriented) methodologyfor information systems development is being developed incooperation with member organizations. The methodologywill employ a high level conceptual modeling and systemspecification language. SISU personnel is also engaged inprojects, run jointly with a number of supporting organisa­tions, where the organisations' current methods are furtherdeveloped, refined and adapted for computer support usingthe RAMATIC tool (see below).

RAMATIC: a prototype ofa generic, graphics-oriented modelmanagement tool ("CASE shell") is under development atSISU G6teborg. The tool permits a designer to define his owndesign methodology (in terms of types ofdesign objects), anda graphical as well as a formal specification language. The toolwill then employ the method definition to maintain a design­and specification data base. The current version of the tool isin experimental and/or production use at several supportingorganisations. Versions of RAMATIC are currently availablefor SUN/Unix, IBM PC/RT (AIX), VAX (UItrix), and VAX(VMS).

AVANCE: a prototype environment for development andimplementation of distributed, interactive information sy­stems is being implemented on SUN /Unix. It is based on theprinciples of object oriented programming. Plans exist tofurther develop the prototype, and to integrate it in an objectoriented systems development methodology (see above),which will focus on decentralization, loosely coupled sy­stems, and reuse and sharing of information- and softwareresources.

CASE-LAB is the name of a set of related projects, run jointlywith industrial partners. All have the common goal to promo­te knowledge and competence in the CASE-area. This isachieved by activities which focus on systematic assessmentof tools, systematic experiments with existing commercialtools as well as with research prototypes, and experimentaldevelopment ofCASE tools (using CASE shells) for a numberof novel methodologies. An important aspect ofCASE-LAB isexchange of knowledge and experience among industrialpartners.

VDDS/RAMATIC is a joint project run by Volvo Car, Data­Logic, Digital, and SISU. It aims at developing an integrated,computer-based, support environment for Volvo Car's sy­stem development methodology, using the RAMATIC CASE­shell. Computer support for parts of the methodology isalready in operation at Volvo.

SISU

MAIN PROJECTS ANDACTIVITIES

SISU

MAIN PROJECTS ANDACTIVITIES

• TRIAD: Initiated by the Swedish Telecom and SISU, this jointproject focuses on information resource management in hete­rogeneous database environments. The project includes anumber of activities on topics such as methods and tools forconceptual modeling, data dictionaries, distributed databa­ses and query processing, and knowledge based techniquesfor information management.

•

•

HSQL is a project aiming at a prototype to interface SQL-da­tabases in natural language and graphics. The interaction willbe supported by a knowledge-base. HSQL is run jointly by anumber of Nordic industry and research partners.

ESPRIT PARTICIPATION: SISU participates in the ESPIr - .2 projects P2469 TEMPORA (Integrating Database Technolo­gy, Rule-Based Systems and Temporal Reasoning for Effecti­ve Software), and in P2424 KIWIS (Advanced Knowledge­Base Environments for Large Database Systems).

SUPPORTINGORGANISATIONS

In addition to the above activities, a number of smaller jointprojects are carried out in cooperation with the supporting orga­nizations. These projects concern topics, such as, Data Administra­tion, Reference Models for Information Resources Management, DialogModeling, SpecificatiOlI Quality Assurance, Office Case Management,and Strategies for Information Processing in the nineties.

Commissioned projects are carried out in areas such as educationand training, methods development support, conceptual mode­ling, information management, development of natural languageinterfaces to databases, and development of expert systems.

The following organisations are members of ISVI:

ARTHUR YOUNG AB· ABB DATA AB· AU·GRUPPEN· DATALOGIC· DIGITAL EQUIPMENT· ENEA • ERICSSON· FRI·FORSVARSSTABEN • IBM. INFOLOGICS • IRM-CONSUI(- .KOMMUNDATA • MANDATOR AB· MIMER SOFTWARE AI:!'PHILIPS ELEKTRONIK AB • PROGRAMATOR • POSTEN·RIKSSKATTEVERKET • SAAB-SCANIA • SAS DATA· SE·BANKEN • SKANDIA • SKF • SODRA SKOGSAGARNA •SPADAB·STATSKONSULT·STATSKONTORET·TELEVER·KET/P • TELEVERKET DATA SERVICES· TELUB TEKNIK AS• UNISYS • VATIENFALL· VOLVO-DATA· VOLVO LASTVAG­NAR· VOLVO PERSONVAGNAR

Swedish Institute lor Systems Development

Box 1250, 5-164 28 Klsta, Sweden

Phone: 46·8·752 16 00

Fax: +46·8-752 68 00

Branch office: Norra Krokslllltsgatan 2, 5-412 64 Giiteborg,

Phone :+46-31-830250, Fex +46-31-831047.