\newcommand{\etalchar}[1]{$^{#1}$}
\begin{thebibliography}{STZHdM89}

\bibitem[AC90a]{AC90b}
D.~C. Anderson and Chang~T. C.
\newblock Automated process planning using object-oriented feature-based
  design.
\newblock In F.-L. Krause and H.~Jansen, editors, {\em Advanced Geometric
  Modelling for Engineering Applications}. North-Holland Publishing Co., 1990.
\newblock (Proc. GI/IFIP International Symposium, Berlin, Germany, 8-10 Nov.
  1989).

\bibitem[AC90b]{AC90a}
D.~C. Anderson and T.~C. Chang.
\newblock Geometric reasoning in feature-based design and process planning.
\newblock {\em Computers \& Graphics}, {\bf 14}, 2, 225 -- 235, 1990.

\bibitem[ACdP84]{ACdP84}
G.~T. Armstrong, C.~G. Carey, and A.~de~Pennington.
\newblock Numerical code generation from a geometric modeling system.
\newblock In M.~S. Pickett and J.~W. Boyse, editors, {\em Solid Modelling by
  Computers}, pages 139 -- 157. Plenum Press, New York, NY, 1984.
\newblock (Proc. General Motors Solid Modeling Symposium, Warren, Michigan,
  Sept. 1983).

\bibitem[ACLM82]{ACLM82}
F.~Arbab, D.~G. Cantor, L.~Lichten, and M.A. Melkanoff.
\newblock The {MARS} {CAM}-oriented modeling system.
\newblock In {\em {CAD/CAM} Technology in Mechanical Engineering}. {MIT} Press,
  1982.
\newblock (Proc. Conf. at Massachusetts Institute of Technology, Cambridge, MA,
  March 1982).

\bibitem[ADFF86]{AFF86}
S.~Ansaldi, L.~De~Floriani, and B.~Falcidieno.
\newblock Form feature representation in a structured boundary model.
\newblock {\em Image Analysis \& Processing}, ?????, 19 -- ??, 1986.

\bibitem[AF88a]{AF88b}
S.~Ansaldi and B.~Falcidieno.
\newblock Form feature representation and recognition in a structured boundary
  model.
\newblock In M.~J. Wozny, H.~W. McLaughlin, and J.~Encarna\c{c}ao, editors,
  {\em Geometric Modeling for {CAD} Applications}. North-Holland Publishing
  Co., 1988.
\newblock (Proc. IFIP WG5.2 Working Conf., Rensselaerville, NY, May 1986).

\bibitem[AF88b]{AF88a}
S.~Ansaldi and B.~Falcidieno.
\newblock The problem of form feature classification and recognition in
  {CAD/CAM}.
\newblock In R.~A. Earnshaw, editor, {\em Theoretical Foundations of Computer
  Graphics and CAD}. Springer-Verlag, 1988.
\newblock (Proc. NATO Advanced Study Institute, Il Ciocco, Italy, July 1987;
  NATO ASI Series, Vol F40).

\bibitem[AF90]{AF90}
S.~Ansaldi and B.~Falcidieno.
\newblock Extracting and completing feature information in process planning
  application.
\newblock In M.~J. Wozny, J.~U. Turner, and K.~Preiss, editors, {\em Geometric
  Modeling for Product Engineering}. North-Holland Publishing Co., 1990.
\newblock (Proc. IFIP WG5.2/NSF Working Conf., Rensselaerville, NY, Sept.
  1988).

\bibitem[AGP91]{AGP91}
R.~Anderl, H.~Grabowski, and M.~J. Pratt, editors.
\newblock {\em Advanced Modelling for CAD/CAM Systems}.
\newblock Springer-Verlag, 1991.

\bibitem[Ail89]{Ail89}
H.~Ailisto.
\newblock Use of design data in {3D} vision-based inspection.
\newblock In {\em Proc. SCIA '89}, 1989.
\newblock Proc. 6th Scandinavian Conf. on Image Analysis, Oulu, Finland, 19-22
  June 1989.

\bibitem[All93]{All93}
G.~Allen.
\newblock Tolerances and assemblies in {CAD/CAM} systems.
\newblock {\em ASME Manufacturing Review}, {\bf 6}, 4, 320 -- 328, 1993.

\bibitem[Ame88]{Ame88}
A.~L. Ames.
\newblock Automated generation of uniform group technology part codes from
  solid model data.
\newblock In {\em Proc. ASME Computers in Engineering Conf., San Francisco,
  July/Aug. 1988}. American Society of Mechanical Engineers, New York, NY,
  1988.

\bibitem[Ame91]{Ame91}
A.~L. Ames.
\newblock Production ready feature recognition based on automatic group
  technology part coding.
\newblock In J.~Rossignac and J.~U. Turner, editors, {\em Symposium on Solid
  Modeling Foundations and CAD/CAM Applications}. Association for Computing
  Machinery, New York, NY, 1991.

\bibitem[AP75]{AP75}
A.~P. Ambler and R.~J. Popplestone.
\newblock Inferring the positions of bodies from specified spatial
  relationships.
\newblock {\em Artificial Intelligence}, {\bf 6}, 2, 157 -- 174, 1975.

\bibitem[Arm82]{Arm82}
G.~T. Armstrong.
\newblock {\em A Study of Automatic Generation of Non-invasive {NC} Machining
  Paths from Geometric Models}.
\newblock PhD thesis, Dept. of Mechanical Engineering, University of Leeds,
  October 1982.

\bibitem[AZ89]{AZ89}
L.~Alting and H.~Zhang.
\newblock Computer aided process planning: {T}he state-of-the-art survey.
\newblock {\em Int. J. Production Research}, {\bf 27}, 4, 553 -- 585, 1989.

\bibitem[B{\etalchar{+}}91]{B+91}
J.~T. Berry et~al.
\newblock Computer aided design for casting and solidification technology.
\newblock In {\em Proc. 1991 SME/NSF Conf. on Design \& Manufacturing Systems,
  Austin, TX, Jan. 1991}, 1991.

\bibitem[BAL{\etalchar{+}}91]{BAL+91}
D.~F. Baldwin, T.~E. Abell, M.-C. Lui, T.~L.~De Fazio, and D.~E. Whitney.
\newblock An integrated computer aid for generating and evaluating assembly
  sequences for mechanical products.
\newblock {\em IEEE Trans. Robotics \& Automation}, {\bf 7}, 1, 78 -- 94, 1991.

\bibitem[BB90]{BB90}
A.~Bernard and P.~Bourdet.
\newblock Features: A new approach to improve productivity in the realisation
  of forging die prints.
\newblock {\em J. Materials Processing Technology}, {\bf 24}, ????, 97 -- 104,
  1990.

\bibitem[BBP92]{BBP92}
M.~Botkin, D.~Bajorek, and M.~Prasad.
\newblock Feature-based structural design of solid automotive components.
\newblock In {\em Proc. 4th International Conf. on Design Theory \&
  Methodology}. American Society of Mechanical Engineers, New York, NY, 1992.

\bibitem[BBWS90]{BBWS90}
F.~Bauert, W.~Beitz, E.~Weise, and N.~Salem.
\newblock Modeling methods for a flexible computer aided embodiment design
  system.
\newblock {\em Research in Engineering Design}, {\bf 2}, 15 -- 34, 1990.

\bibitem[BC88]{BC88}
A.~H. Bond and K.~J. Chang.
\newblock Feature-based process planning for machined parts.
\newblock In {\em Proc. ASME Computers in Engineering Conf., San Francisco,
  July/Aug. 1988}. American Society of Mechanical Engineers, New York, NY,
  1988.

\bibitem[BC89]{BC89}
A.~H. Bond and K.~J. Chang.
\newblock Subplanning methods for process planning.
\newblock In {\em Proc. 1989 Computers in Engineering Conf.} American Society
  of Mechanical Engineers, New York, NY, 1989.

\bibitem[BD86]{BD86}
J.~Brimson and P.~Downey.
\newblock Feature technology: A key to manufacturing integration.
\newblock {\em CIM Review}, Spring 1986, 21 -- 27, 1986.

\bibitem[BF88]{BF88}
A.~Bhadra and G.~W. Fischer.
\newblock A new {GT} classification approach: A database with graphical
  dimensions.
\newblock {\em ASME Manufacturing Review}, {\bf 1}, 1, 44 -- 49, 1988.

\bibitem[BFC]{BFK90}
T.~O. Binford, L.~Frants, and M.~R. Cutkosky.
\newblock Representation and propagation of tolerances for {CAD/CAM} systems.
\newblock In ??????????, editor, {\em ?????????}, ????
\newblock (Proc. IFIP WG5.2 Workshop on Geometric Modeling, Rensselaerville,
  NY, June 1990).

\bibitem[BGJ94]{BGJ94}
P.~B\'{e}ziat, Y.~Gardan, and J.-P. Jung.
\newblock A constraints management system: Model and dialog.
\newblock In {\em IFIP Valenciennes 1994}. University of Valenciennes, 1994.
\newblock (Proc. IFIP WG5.3 Conf. on Feature Modeling and Recognition in
  Advanced CAD/CAM Systems, 24 -- 26 May 1994, Valenciennes, France).

\bibitem[Bha88]{Bha88}
A.~S. Bhatnagar.
\newblock Implementation of feature mapping and reasoning shell with
  application to group technology coding.
\newblock Master's thesis, Arizona State University, August 1988.

\bibitem[BHR89]{BHR89}
R.~E. Billo, M.~R. Henderson, and R.~Rucker.
\newblock Applying conceptual graph inferencing to feature-based engineering
  analysis.
\newblock {\em Computers in Industry}, {\bf 13}, 3, 195 -- 214, 1989.

\bibitem[BHW87]{BHW87}
S.~L. Brooks, K.~E. Hummel, and M.~L. Wolf.
\newblock {XCUT}: A rule-based expert system for the automated process planning
  of machined parts.
\newblock In {\em Proc. ASME Winter Annual Meeting, Boston, MA, Dec 1987}.
  American Society of Mechanical Engineers, New York, NY, 1987.
\newblock (ASME Publication PED-25, pp. 181 -- 194).

\bibitem[Bil89]{Bil89}
R.~E. Billo.
\newblock {\em An Object-oriented Modeling Methodology utilizing Conceptual
  Graphs for Form Feature Definition}.
\newblock PhD thesis, ????? Arizona State University, Tempe, AZ, 1989.

\bibitem[BJ88]{BJ88}
A.~H. Bond and R.~Jain.
\newblock The formal definition and automatic extraction of group technology
  codes.
\newblock In {\em Proc. ASME Computers in Engineering Conf., San Francisco,
  July/Aug. 1988}. American Society of Mechanical Engineers, New York, NY,
  1988.

\bibitem[BJ93]{BJ93}
W.~F. Bronsvoort and F.~W. Jansen.
\newblock Feature modelling and conversion -- key concepts for concurrent
  engineering.
\newblock {\em Computers in Industry}, {\bf 21}, 1, 61 -- 86, 1993.

\bibitem[BJ94]{BJ94}
W.~Bronsvoort and F.~Jansen.
\newblock Multi-view feature modelling for design and assembly.
\newblock In J.~J. Shah, M.~M{\"{a}}ntyl{\"{a}}, and D.~S. Nau, editors, {\em
  Advances in Feature Based Manufacturing}, pages 315 -- 330. Elsevier Science
  B.V., 1994.

\bibitem[BK86]{BK86}
H.~R. Berenji and B.~Khoshnevis.
\newblock Use of artificial intelligence in automated process planning.
\newblock {\em Computers in Mechanical Engineering}, {\bf 5}, 2 (Sept 1986), 47
  -- 55, 1986.

\bibitem[BK88]{BK88}
J.~R. Boerma and H.~J.~J. Kals.
\newblock {FIXES}, a system for automatic selection of set-ups and design of
  fixtures.
\newblock {\em Ann. CIRP}, {\bf 37}, 1, 443 -- 446, 1988.

\bibitem[BK89]{BK89}
J.~R. Boerma and H.~J.~J. Kals.
\newblock Fixture design with {FIXES}: The automatic selection of positioning,
  clamping and support features for prismatic parts.
\newblock {\em Ann. CIRP}, {\bf 38}, 1, 399 -- 402, 1989.

\bibitem[Blo84]{Blo84}
D.~Blore.
\newblock Computer aided process planning.
\newblock {\em Computers in Mechanical Engineering}, May, pp. ????, 1984.

\bibitem[BM92]{BM92}
\O. Bj{\"{o}}rke and O.~Myklebust, editors.
\newblock {\em {IMPPACT}: Integrated Modelling of Products and Processes using
  Advanced Computer Technologies}.
\newblock Tapir Publishers, Trondheim, Norway, 1992.
\newblock (Final report of ESPRIT II Project No. 2165, IMPPACT).

\bibitem[Boe90]{Boe90}
J.~R. Boerma.
\newblock {\em The Design of Fixtures for Prismatic Parts}.
\newblock PhD thesis, University of Twente, The Netherlands, 1990.

\bibitem[BP89]{BP89}
N.~S. Bernstein and K.~Preiss.
\newblock Representation of tolerance information in solid models.
\newblock In {\em Proc. 1989 Design Automation Conf.} American Society of
  Mechanical Engineers, New York, NY, 1989.
\newblock (Conf. held in Montreal, Canada, Sept 1989).

\bibitem[BPB93]{BPB93}
A.~D. Bowyer and S.~Parry-Barwick.
\newblock Woodwark's method for feature recognition.
\newblock {\em Computer Aided Design}, Submitted for publication, 1993.

\bibitem[BR87]{BR87}
P.~Brown and S.~Ray.
\newblock Research issues in process planning at the {N}ational {B}ureau of
  {S}tandards.
\newblock In {\em Proc. 19th Intl. Seminar on Manufacturing Systems, June
  1987}. ????, 1987.
\newblock (WHERE? WHO?).

\bibitem[Bra82]{Bra82}
I.~C. Braid.
\newblock Form features and generic shapes, Feb. 1982.
\newblock Shape Data Ltd., report to CAM-I Geometric Modeling \& Advanced
  Numerical Control Projects.

\bibitem[Bra90]{Bra90}
T.~A. Brand.
\newblock Increased flexibility in a feature-based design environment.
\newblock Master's thesis, Rensselaer Design Research Center, Rensselaer
  Polytechnic Institute, Troy, NY, 1990.
\newblock (RDRC Technical Report 90039).

\bibitem[Bro93]{Bro93}
C.~W. Brown.
\newblock Feature-based tolerancing for intelligent inspection process
  definition.
\newblock In H.~B. V.~Srinivasan \&~Voelcker, editor, {\em Proc. 1993
  International Forum on Dimensional Tolerancing \& Metrology, Dearborn, MI, 17
  - 19 June 1993}, pages 249 -- 258. American Society of Mechanical Engineers,
  New York, NY, 1993.

\bibitem[BRS88]{BRS88}
R.~E. Billo, R.~Rucker, and D.~L. Schunk.
\newblock Enhancing group technology modeling with database abstractions.
\newblock {\em J. Manufacturing Systems}, {\bf 7}, 2, 95 -- 106, 1988.

\bibitem[Bru89]{Bru89}
J.-M. Brun.
\newblock Solid modelling schemes and solid reconstruction.
\newblock In W.~Strasser and H.-P. Seidel, editors, {\em Theory and Practice of
  Geometric Modeling}. Springer-Verlag, 1989.
\newblock (Proc. Int. Conf. in Blaubeuren, Germany, Oct 1988).

\bibitem[Bru90]{Bru90}
J.-M. Brun.
\newblock B-{R}ep to {CSG} conversion as a feature recognition process.
\newblock In F.-L. Krause and H.~Jansen, editors, {\em Advanced Geometric
  Modelling for Engineering Applications}. North-Holland Publishing Co., 1990.
\newblock (Proc. GI/IFIP International Symposium, Berlin, Germany, Nov. 1989).

\bibitem[Bru94]{Bru94}
J.-M. Brun.
\newblock From characteristic shapes to form features.
\newblock In {\em IFIP Valenciennes 1994}. University of Valenciennes, 1994.
\newblock (Proc. IFIP WG5.3 Conf. on Feature Modeling and Recognition in
  Advanced CAD/CAM Systems, 24 -- 26 May 1994, Valenciennes, France).

\bibitem[BSWDM90]{B+90}
K.~N. Brown, J.~H. Sims~Williams, J.~Devlukia, and C.~A. McMahon.
\newblock Reasoning with geometry: Predicting stress concentration factors.
\newblock {\em Artificial Intelligence in Engineering}, {\bf 5}, 4, 182 -- 188,
  1990.

\bibitem[BW93]{BW93}
W.~Brandenburg and B.~W{\"{o}}rdenweber.
\newblock Featuremodelling with an object-oriented approach.
\newblock {\em Computing}, {\bf Supplement 8}, 43 -- 57, 1993.
\newblock (Proc. Geometric Modelling Seminar, Schloss Dagstuhl, Germany, July
  1991; published as {\em Geometric Modeling}, eds. G. Farin, H. Hagen \& H.
  Noltemeier, Springer-Verlag).

\bibitem[BW94]{BW94}
S.~L. Brooks and M.~L. Wolf.
\newblock Overview of {A}llied {S}ignal's {XCUT} system.
\newblock In J.~J. Shah, M.~M{\"{a}}ntyl{\"{a}}, and D.~S. Nau, editors, {\em
  Advances in Feature Based Manufacturing}, pages 399 -- 422. Elsevier Science
  B.V., 1994.

\bibitem[C{\etalchar{+}}88]{C+88}
U.~Cugini et~al.
\newblock Towards automatic indexing of product models in a {CIM} environment.
\newblock Proc IEEE Workshop on Languages for Automation, University of
  Maryland, 29 -- 31 Aug 1988, 1988.

\bibitem[C{\etalchar{+}}89]{Cha+89}
B.~Charles et~al.
\newblock Toward a computer-aided functional tolerancing model.
\newblock Proc. Intl. Conf on CAD/CAM \& Advanced Manufacturing Technology,
  Jerusalem, Israel, 11-14 Dec 1989, 1989.

\bibitem[C{\etalchar{+}}90]{C+90}
P.~H. Cohen et~al.
\newblock Attribute-based group technology system.
\newblock In {\em Proc. SME Autofact Conf., Detroit, MI, Nov. 1990}. Society of
  Manufacturing Engineers [WHERE?], 1990.

\bibitem[CA89a]{CK89b}
K.~Case and B.~S. A\c{c}ar.
\newblock Learning studies in the use of computer aided design systems.
\newblock {\em Behaviour \& Information Technology}, {\bf 8}, 5, 353 -- 368,
  1989.

\bibitem[CA89b]{CA89a}
K.~Case and B.~S. A\c{c}ar.
\newblock The manufacturing features approach to design and its impact on the
  learning and use of computer aided design systems.
\newblock In E.~D. Megaw, editor, {\em Contemporary Ergonomics 1989}. Taylor \&
  Francis, London, 1989.

\bibitem[CAB89]{CCB89}
Y.-C. Chou, D.~C. Anderson, and M.~Barash.
\newblock A mathematical approach to automatic configuration of machining
  fixtures: {A}nalysis and synthesis.
\newblock {\em ASME J. Engineering for Industry}, {\bf 111}, 299 -- 306, 1989.

\bibitem[Cab90]{Cab90}
J.~Cabadaj.
\newblock Theory of computer aided fixture design.
\newblock {\em Computers in Industry}, {\bf 15}, 1\&2, 141 -- 147, 1990.

\bibitem[{CAM}80]{CAM80}
{CAM-I}.
\newblock {CAM-I}'s illustrated glossary of workpiece form features.
\newblock Technical Report \mbox{R-80-PPP-02.1}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1980.

\bibitem[{CAM}81]{CAM81}
{CAM-I}.
\newblock Preliminary study of the requirements for the incorporation of
  dimensions and tolerances in a geometric model.
\newblock Technical Report \mbox{R-81-GM-03}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1981.

\bibitem[{CAM}82]{CAM82}
{CAM-I}.
\newblock Design of an advanced numerical control processor.
\newblock Technical Report \mbox{R-82-ANC-01}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1982.

\bibitem[{CAM}85a]{CAM85b}
{CAM-I}.
\newblock Dimensioning and tolerancing final report.
\newblock Technical Report \mbox{R-85-GM-02.2}, Computer Aided Manufacturing
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\bibitem[{CAM}85b]{CAM85a}
{CAM-I}.
\newblock Requirements for support of form features in a solid modeling system.
\newblock Technical Report \mbox{R-85-ASPP-01}, Computer Aided Manufacturing
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\bibitem[{CAM}85c]{CAM85c}
{CAM-I}.
\newblock Volume decomposition algorithm --- final report.
\newblock Technical Report \mbox{R-85-ANC-01}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1985.

\bibitem[{CAM}86a]{CAM86c}
{CAM-I}.
\newblock Dimensions and tolerances feasibility demonstration.
\newblock Technical Report \mbox{PS-86-ANC/GM-01}, Computer Aided Manufacturing
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\bibitem[{CAM}86b]{CAM86d}
{CAM-I}.
\newblock Features extraction and process planning.
\newblock Technical Report \mbox{R-86-GM/PP-01}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1986.

\bibitem[{CAM}86c]{CAM86a}
{CAM-I}.
\newblock Part features for process planning.
\newblock Technical Report \mbox{R-86-PPP-01}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1986.

\bibitem[{CAM}86d]{CAM86b}
{CAM-I}.
\newblock Reconciliation of design and manufacturing requirements for product
  description data using functional primitive part features.
\newblock Technical Report \mbox{R-86-ANC/GM/PP-01.1}, Computer Aided
  Manufacturing International, Inc., Arlington, TX, 1986.

\bibitem[{CAM}88a]{CAM88a}
{CAM-I}.
\newblock The coupling of geometric modeling systems with finite element
  modeling.
\newblock Technical Report \mbox{R-88-GM-01.1}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1988.

\bibitem[{CAM}88b]{CAM88c}
{CAM-I}.
\newblock Current status of features technology.
\newblock Technical Report \mbox{R-88-GM-04.1}, Computer Aided Manufacturing
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\bibitem[{CAM}88c]{CAM88b}
{CAM-I}.
\newblock The modelling of assemblies for design and manufacture.
\newblock Technical Report \mbox{R-88-GM-02}, Computer Aided Manufacturing
  International, Inc., Arlington, TX, 1988.

\bibitem[CAM88d]{CAM88}
T.~C. Chang, D.~C. Anderson, and O.~R. Mitchell.
\newblock {QTC} -- an integrated design/manufacturing/inspection system for
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\newblock In {\em Proc. ASME Computers in Engineering Conf., San Francisco,
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\bibitem[{CAM}89]{CAM89}
{CAM-I}.
\newblock Functional requirements for feature-based modeling systems.
\newblock Technical Report \mbox{R-89-GM-03}, Computer Aided Manufacturing
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\bibitem[{CAM}90a]{CAM90a}
{CAM-I}.
\newblock Conceptual design of feature-based modeling system.
\newblock Technical Report \mbox{R-90-PM-01}, Computer Aided Manufacturing
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\bibitem[{CAM}90b]{CAM90b}
{CAM-I}.
\newblock Philosophical development of form feature concept.
\newblock Technical Report \mbox{R-90-PM-02}, Computer Aided Manufacturing
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\bibitem[{CAM}90c]{CAM90c}
{CAM-I}.
\newblock Proceedings, {F}eatures {S}ymposium, {A}ugust 9-10 1990, {W}oburn
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\newblock Document \mbox{P-90-PM-02}, Computer Aided Manufacturing
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\bibitem[Cat91]{Cat91}
G.~Catania.
\newblock Form features for mechanical design and manufacturing.
\newblock {\em J. Engineering Design}, {\bf 2}, 1, 21 -- 43, 1991.

\bibitem[CB85]{CB85}
B.~K. Choi and M.~M. Barash.
\newblock {STOPP}: An approach to {CAD/CAM} integration.
\newblock {\em Computer Aided Design}, {\bf 17}, 4, 162 -- 168, 1985.

\bibitem[CB89a]{CB89b}
S.~P. Carney and D.~C. Brown.
\newblock A continued investigation into qualitative reasoning about shape and
  fit.
\newblock {\em Artificial Intelligence in Engineering Design \& Manufacture},
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\bibitem[CB89b]{CB89a}
S.~P. Carney and D.~C. Brown.
\newblock A qualitative model for reasoning about shape and fit.
\newblock In {\em Proc. 4th Intl. Conf on AI in Engineering, Cambridge, UK,
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\bibitem[CBA84]{CBA84}
B.~K. Choi, M.~M. Barash, and D.~C. Anderson.
\newblock Automatic recognition of machined surfaces from a {3D} solid model.
\newblock {\em Computer Aided Design}, {\bf 16}, 2, 81 -- 86, 1984.

\bibitem[CC91a]{CC91a}
J.~Corney and D.~E.~R. Clark.
\newblock A feature recognition algorithm for multiply connected depressions
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\newblock In {\em Solid Modeling Foundations and CAD/CAM Applications}.
  Association for Computing Machinery, New York, NY, 1991.
\newblock (Proc. ACM Symposium, Austin, TX, June 1991).

\bibitem[CC91b]{CC91b}
J.~Corney and D.~E.~R Clark.
\newblock Method for finding holes and pockets that connect multiple faces in
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\newblock {\em Computer Aided Design}, {\bf 23}, 10, 658 -- 668, 1991.

\bibitem[CC93a]{CC93a}
J.~Corney and D.~E.~R. Clark.
\newblock Efficient face-based feature recognition.
\newblock In J.~Rossignac, J.~U. Turner, and G.~Allen, editors, {\em Second
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\newblock (Proc. ACM Symposium, Montreal, Canada, May 1993).

\bibitem[CC93b]{CC93b}
J.~Corney and D.~E.~R. Clark.
\newblock Face-based feature recognition: Generalizing special cases.
\newblock {\em Int. J. Computer Integrated Manufacture}, {\bf 6}, 1\&2, 39 --
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\bibitem[CCMY92]{CCMY92}
J.~Corney, D.~E.~R. Clark, J.~L. Murray, and Y.~Yue.
\newblock Automatic classification of {$2\frac{1}{2}D$} components.
\newblock In {\em Proc. Symposium on Concurrent Engineering}. American Society
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\newblock (Presented at Winter Annual Meeting, Anaheim, CA, Nov 1992;
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\bibitem[CCPS88]{CCPS88}
J.~C. Chung, R.~L. Cook, D.~Patel, and M.~K. Simmons.
\newblock Feature-based geometry construction for geometric reasoning.
\newblock In {\em Proc. ASME Computers in Engineering Conf., San Francisco,
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\bibitem[CD88]{CD88}
J.~Cunningham and J.~R. Dixon.
\newblock Designing with features: the origin of features.
\newblock In {\em Proc. ASME Computers in Engineering Conf., San Francisco,
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\bibitem[CF88]{CF88}
L.~Casu and B.~Falcidieno.
\newblock A feature-based modelling system built on top of {E}uler operators.
\newblock Technical Report~52, Instituto per la Matematica Applicata del CNR,
  Genoa, Italy, 1988.
\newblock (submitted to CG International 89 Conf, Leeds).

\bibitem[CFG{\etalchar{+}}91]{CF+91}
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\newblock PhD thesis, Rensselaer Design Research Center, Rensselaer Polytechnic
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\bibitem[DPS94]{DPS94}
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\newblock Springer-Verlag, 1986.

\bibitem[EO91]{EO91}
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\newblock Extraction and organisation of manufacturing features from a
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\newblock Master's thesis, Purdue University, 1986.

\bibitem[Fau81]{Fau81}
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\newblock Preliminary study of the requirements for the incorporation of
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\newblock A prototype for feature-based design for assembly.
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\bibitem[FG90]{FG90}
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\bibitem[Fle89]{Fle89}
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\bibitem[Flo88]{Flo88}
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\bibitem[Rob91]{Rob91}
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\bibitem[Rol89]{Rol89}
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\bibitem[Ros90]{Ros90}
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\bibitem[Ros91b]{Ros91b}
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\end{thebibliography}