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C  pKlicken Sie, um die Formate des Vorlagentextes zu bearbeiten Zweite Ebene Dritte Ebene Vierte Ebene Fnfte Ebene=     q $ T#pFpF X   w* R))RR{{ $ T#pFpF    y* R))RR{{H $ 03iO ? ̙33 @>(  x  <A %??C' %  C ^AFF:\AG_Sneed\Seminare\NODe_Logo.gif@@H  0޽h ? f ;3P( xZ   s *bY f  1) Lord Kelvin on Measurement 2) Tom DeMarco on Measurement 3) Test Metric Categories 4) Testability at the Unit Test Level 5) Testability at the Integration Test Level 6) Testability at the System Test Level 7) Measuring the Complexity of Test Cases 8) Measuring the Quality of Test Cases 9) Test Case Analysis Report for FIVS 10) FIVS Test Case Quantity 11) FIVS Test Case Complexity & Quality 12) Calculating Test Costs 13) Estimating the Number of Test Cases 14) Calculating Test Effort with COCOMO-II 15) Metrics for Measuring Test Coverage 16) Metrics for Evaluating Test Effectiveness 17) Ratio of Tester to User Error Reports 18) Test Metrics from the GEOS Project 19) Defect Analysis in the GEOS Project 20) Test Metric Conclusion 21) More Research on Test Metrics required! 2! !  0$cY] k PRESENTATION(2  H  0޽h ? f bZ` ( 0@ R  s *`J  6hY    When you can measure what you are speaking about, and express it in numbers, you know something about it, but when you cannot measure it, when you can not express it in numbers, then your knowledge is of a meagure and unsatisfactory kind. " 0    0$iY  ` 0 )from Lord Kelvin British physicist, 1882 **6   6DjY]  Lord Kelvin on Measurement (2  >  H  0޽h ? f ~vp ( xZ R  s *0 `h  6jY p  You can not control what you can not measure. Mesurement is the prerequisite to management control.   gf       0kY  `   , from Tom DeMarco American Consultant, 1982 --,  6Y0P] Tom DeMarco on Measurement(2 H H  0޽h ? f   ( 0@ R  s *P   04Y P 0  +Metrics for assessing the testability of the software Metrics for evaluating test cases Metrics for calculating test costs Metrics for measuring test coverage Metrics for assessing test effectiveness   xxyb  6Y] Test Metric Categories(2 , H  0޽h ? f`  ( f R  s *  0TY `0 Unit Complexity = Size * Cohesion * Coupling Control path complexity = Control flow branches / Statements Interface complexity = Interfaces + Parameters / Statements Data complexity = Conditional variables / Variables used Unit Testability = 1 - Average (Unit-Complexity, Control-Flow-Complexity, Interface-Complexity, Data-Complexity)"- &2 / + ( %  O    6Y] "Testability at the Unit Test Level#(2# $H  0޽h ? f} -% (  R  s *``$  0tY 0 Interface volume = Interfaces / Interfaces + Components Interface complexity = Parameters / Parameters + Interfaces Database access frequency = Components without Database accesses / Components Interface Visibility = invisible Interfaces / Interfaces Integration Testability = 1 - Average (Interface-Volume, Interface-Complexity, Database-Access Frequency, Interface-Visibility)8"  , 0 / 6 !    v  W    6Y 0] )Testability at the Integration Test Level*(2* $H  0޽h ? f `X (  R  s *0 \  04Y 0` User Interface Volume = User Interfaces + Controls / System Variables System Interface Volume = System Interfaces + Data Elements / System Variables Database Volume = Tables + Attributes / System Variables UseCase Volume = UseCases / System Functions System Testability = 1 - Average (User-Interface-Volume, System-Interface-Volume, Database-Volume, UseCase-Volume)3 )  . , E (            !  @      6Y] $Testability at the System Test Level%(2% $ H  0޽h ? f ~v (  R  s *T  0TY  DTest data complexity = test data types / test data instances Test data density = test control variables / test data Test case volume = 1  (test cases / test data instances) Test case intensity = 1  (use cases / test cases) Test case complexity = Average (Test data complexity, Test data density, Test case volume, Test case intensity)"j) * m - E   N    6Y] &Measuring the Complexity of Test Cases'(2' H  H  0޽h ? f sk (  R  s *^  0tY  ,Test case impact = 1  ( test cases / impacted functions ) Test case reusability = ( automated test cases / test cases ) Test case conformity = ( formally correct test case attributes / total test case attributes ) Test case affectivity = ( weighted errors detected / test cases executed ) Test case quality = Average (Test case impact, test case reusability, test case conformity, test case affectivity)"' 0 > ) 9   d & 3  T    64Y] #Measuring the Quality of Test Cases$(2$ 6  H  0޽h ? f{  + #  (     s *Y@ M _+-----------------------------------------------------+ | Module: GWMBRACO Number of Test Cases = 106 | | Module: GWMDERIV Number of Test Cases = 761 | | Module: GWMEMIBE Number of Test Cases = 128 | | Module: GWMEMISS Number of Test Cases = 325 | | Module: GWMEXDAT Number of Test Cases = 167 | | Module: GWMFETAG Number of Test Cases = 139 | | Module: GWMFI Number of Test Cases = 3070 | | Module: GWMFIBEZ Number of Test Cases = 880 | | Module: GWMFIKAT Number of Test Cases = 597 | | Module: GWMFIKNU Number of Test Cases = 341 | | Module: GWMIDENT Number of Test Cases = 886 | | Module: GWMINDX Number of Test Cases = 838 | | Module: GWMINSKA Number of Test Cases = 168 | | Module: GWMINVRL Number of Test Cases = 40 | | Module: GWMKURS Number of Test Cases = 133 | | Module: GWMRAFWZ Number of Test Cases = 240 | +-----------------------------------------------------+ | Modules = 167 Number of Test Cases = 58931 | +-----------------------------------------------------+``7              7 7  0TY] t"Test Case Analysis Report for FIVS#(2# "H  0޽h ? f  Q(  B  s *Y ZTest Case Quantity +-----------------------------------------------------+ | FIVS Total Number of Functions tested = 217 | | FIVS Total Number of Modules tested = 167 | | FIVS Total Number of Projects tested = 10 | | FIVS Total Number of System TestProcs = 259 | | FIVS Total Number of System TestCases = 13634 | | FIVS Total Number of Online TestCases = 5689 | | FIVS Total Number of Batch TestCases = 49 | | FIVS Total Number of Interfac TestCases = 7896 | | FIVS Total Number of Testcase Types = 7 | | FIVS Total Number of Test Deficiencies = 36309 | | FIVS Total Number of Major Deficiencies = 7645 | | FIVS Total Number of Media Deficiencies = 276 | | FIVS Total Number of Minor Deficiencies = 28388 | +-----------------------------------------------------+[[R7         7  0tY` ] oFIVS Test Case Quantity  H  0޽h ? f *(    s *Y Test Case Complexity +-----------------------------------------------------------+ | FIVS Testcase Data Complexity Ratio = 0.765 | | FIVS Testcase Test Density Ratio = 0.554 | | FIVS Testcase Test Intensity Ratio = 0.810 | | FIVS Testcase Test Volumne Ratio = 0.231 | | FIVS Overall Test Complexity Rating = 0.590 | +-----------------------------------------------------------+ Test Case Quality +-----------------------------------------------------------+ | FIVS Testcase Impact Ratio = 0.769 | | FIVS TestCase Reusability Ratio = 0.432 | | FIVS TestCase Conformity Ratio = 0.560 | | FIVS TestCase Coverage Ratio = 0.984 | | FIVS Overall Test Quality Rating = 0.686 | +-----------------------------------------------------------+ =       (= =) %:=  0Yp] $FIVS Test Case Complexity & Qualtity%% , H  0޽h ? f x (  R  s * `   6Y ` *Primary factors for estimating Test costs $+*    0TY @  .dNumber of Test Cases required Testability of the Software Test Productivity = Test Cases/Tester Daysee    6Y] zCalculating Test Costs(2 $ H  0޽h ? f   I( 0@   6$1r] #Estimating the Number of Test Cases$(2$ $R   s *P0p  01r P  bBlackbox-Test Cases = {UseCases x Steps x Rules } + {GUI s x Objects x States } + {DB-Tables x Tuples x Instances } Greybox-Test Cases = {Interfaces x Parameters x Values } Whitebox-Test Cases = {Methods x Method Invocations } + {Objects x Object states } | Control paths4@D -D        8 H  0޽h ? f 0(0 ( 0@ R  s *0    01r  `  { Number Test Cases} ** SE Test Effort = ST { Test Productivity } x Testability Factor Where ST = System Type (0,5:4) and SE = Scaling Exponent (0,91:1,23) Testability Factor = 0,5 / Testability Ratio If the standard test productivity = 20 test cases per day and there are 1000 test cases to be tested and the testability ratio is 0.4 with a scaling exponent of 1,10 for a distributed system the testing effort will be: (((1000/20 = 50) ** 1.10 = 74) x 1.25 = 92.5) x 2 = 185 Days x3@@                M  $  & $.%-5  62r] &Calculating Test Effort with COCOMO-II'(2' .   H  0޽h ? f IA@ ( 0@ R  s *` `0F  03r  P0 Requirements Coverage = Tested Requirements Specified Requirements Architectural Coverage = Tested Architectural Features Architectural Features Code Coverage = Tested Statements, Branches, Paths Statements, Branches, Paths, States Test Case Coverage = Executed Test Cases Specified Test Cases  - .#+ R.+@           63r] #Metrics for Measuring Test Coverage$(2$ $H  0޽h ? f umP ( xZ R   s *@` l  0$4r     Test Effectivness = Weighted Errors reported by Testers Total weighted Errors reported Total weighted Errors = Tester reported + User reported Errors Test Confidence = 1 - { weighted Errors } x Test Coverage Rate executed Test Cases $/,) 0   x.Zb  64r `] )Metrics for evaluating Test Effectiveness*(2* $ H  0޽h ? f  ` K( xZ   0D5r `] w%Ratio of Tester to User Error Reports&(2& %l  0A 5??`` B 5  06r   bErrors found by the Testers 2   06r@@ Pz dErrors found by the End Users 2   07r0 p  \This should be > 85%(2   0D8r@ ZThis should be < 15% 2 dB   <DjJ@   08r@@Pz  v0indicates Test Operation is not effective enough1 21 1   09r I25% 2    0d9r  I75% 2 H  0޽h ? f= R=J=pi <( xZ @ ; C #*@ < C @ = C @ > C  % @ ? C fm@ @ C fm@ C C   6$:rp] |"Test Metrics from the GEOS Project#(2#  9F `    NB  S `N  S `NB  S `a N  S `g T   c $`N   S `    <:r  b GUI Panels*     <D;r  _Reports*    <,8 `h  xPh H   C `` HB  C 5H   C 5N   S `  6tr _Defects*   64r"  d Test Quality*    0r   e Defect per Tc*    6r L e DefectDensity*    6tr` e DefectDensity*    6r W897&   64r Y0.829&   6r   Y0.119&   6rs Y0.013&   6TrXX Z0.0022&   6_t W196&   64`t Y0.763&   6`t   Y0.016&   6`ts Y0.004&   6TatXX Z0.0001&   6ate W140&   6bte Y0.851&   6tbt  e Y0.501&    6btse Y0.002&  ! 64ctXXe Z0.0011&  " 6ctp: W256&  # 6ctp: Y0.809&  $ 6Tdt p : Y0.808&  % 6dtps: Y0.004&  & 6etXpX: Z0.0022&  ' 6tetD  V10&  ( 6etD  Y0.901&  ) 64ft D   Y0.088&  * 6ftDs  Y0.001&  + 6ftDU  U0&  , 6Tgt   V36&  - 6gt   Y0.684&  . 6ht   Y0.098&  / 6tht s  Y0.001&  0 6htX X  Z0.0001&  1 64it`   X1535&  2 6it   Y0.722&  3 6it  Y0.088&  4 6Tjt s  Y0.014&  5 6jtX X  Z0.0006&  6 6kt   Y0.822&  7 6tkt ^  Y0.178& HB \ C ` a H ] C ` h HB ^ C ` a H _ C ` h HB ` C  ` a H a C  ` h HB b C x ` y a H c C x ` h HB d C I` Ja H e C I` Qh HB f C -` .a H g C -` 5h `B l 0Dpp` `B m 0D` ` ` `B n 0DP P ` `B o 0Dpp` `B p 0D``B q 0D``B r 0D^`^`B s 0D@`@`B t 0D ` `B u 0D ` `B v 0D ` `B w 0D ` H  0޽h ? f } | (  |R | s *0 | 0Tt  @Metrics for measuring Testability Metrics for assessing the quantity, quality & complexity of the Test Cases Metrics for calculating Test Costs Metrics for measuring Test Coverage Metrics for assessing the benefits of the Test Operation;  3j&.6 | 6t] Test Metric Conclusion(2 ,  | 0tt| 9Five categories of Test Metrics have been presented here:: 2: :H | 0޽h ? fJ  (  X  s *T! ` The metrics presented here are intended to make testing more transparent. Testing has evolved into a major resource consumer and cost driver. Many managers are beginning to ask what they are getting for the money they are investing in testing. What are the benefits of testing? This study has offered two metrics for helping to answer that question. There are certainly others to be discovered. That is why this study can only be considered as a first step in the process of transforming software testing from an art into a science. With more research coupled with empirical studies it may someday even be possible to understand what we are doing according to the criteria of Lord Kelvin.   0"] &More Research on Test Metrics required$'&  $H  0޽h ? f|x] p\u$ײ$#˲-۲I+ɲ#-0O֚ծ]Ya1t8:-C]LPgL NK''L {{{w+iÞݿs={=P~', 3:SJ&2t:33c%ᦂ+1=PPPT+G@XPJku)2 T#܆aPP+ZЀpJU2kqmBXЌaFqa+66vY&I8Ģ$0;XJ *uISK"{Z7vU͑S*2]Sz fJ0 H}ZhħWĽ|ɜۯVK:ŧ4o.YiGtݿ_Bñh<:0Gc'H));:WoB75BVBX-AfZBkC1| qg+:4i-foa3Q&Ά(!6WuZGjzne05&PA+ڹU߹ Shϲm1}׳m=vМbż]ؠ s_G[/~Ŵ :mTsAPzx~lw891l\6'b6cif>n1.V>g-GvR5:;ޟ:duG`d'3%RueWdPrFWs%4֋(F$kvַQ\V](G'5GE}kE#KW{3'Y)V2UG br[zHuQvu6hGm88w&Y:GYj#rڢGoy{&hɎ{3c])m";'iMdkRP_27]ũO?lq`$Y"i.%=J!qtC,JbYBadGX>] TůU2wB ~=5g*B9fH֓ο?LsXCRܽZcGms.MuReD:P Z;ǜIļž J|BP{@ZWfj/aK޻{,v =~",wR03S)OL|5. s3O7b{{dJ//ӉkL!nM'(;!ėQ E iWF0&`P; h&H_TSzQ]'ލv3{wMͰ}G qTvIY c7uG6]EIG#$qo G 4DN :)~ch D<~āp"g*Td. ]d?* ![+ aq B7vO/aGq ,ɊНTEVH[iٜH=+@`i#r?XG+Eo*-UYsbKl=U}] &٫N4 Mz8ڳ."4g]#j{˧{gZ2#'5k$͎")Ԧ٩-+kr1-+5R{̦2Ak^j/.ۼ5/.mt]tj5=R{`M큥4-^ȸd2@Լ25pYY7Nhsvc @Ά"ga(H_% [_ (|n7/Ȭ9uTYU9ǎd:YsiDakyp]#@Fc5N^5N5NN 5N]5N5N5NN5Nz5N5N5Nz~\\GGӆ\CIr^qrȨqr(qrHqrTqrx_Ae`á,յ 3^&oɐup9]bzy`!6}uCdT?5;9Q.FZOŘ14/eAyka>}7xSmG_B{ѳN9,u20# gݗdTxxMƭIsy?-;()Kvb-us8 Dط{K3I&c*9hNzeNg1KwÉ)3bƹ3`a> kw봏6/Ya.q>|6@ }R6{VyL3žX8/39xuHժ$WrRf+})3Ƨ~d frNRH,:9%D,asU+{?M`=&~jesV=]_RVAz =(ï{K*r+֛K$ GJ+Q;MiEZm^Z>;v#oҪS9 b+V)=aEL~h׹Εi+ݦٷ÷56Ѹb 4D,MS&95Su $MO\~(ϩn t~5jKKcr.PZʅ!70-?aY]R %qzyNU(30ǢѸ4f Q3nF`GIup Ǎy GQrhO(P؄s[[5zO i -F&sDT u;bnۤ6Kڤ%,7r:_<{MFcӴ %H׆<7KBE#nhtQ>ߺ՘$BacCs&a m̌%,[O=>Y s /| ڤꓹ$๕z9&’ៃ1ڍ9R )~q~SZo̮P$VrfHYY^Z0& [>kIm+[8,tݔ)L#V6{כgq8p8}4u6#ڷVtsc(Mb^)1.NL1_M>}ןvѢ5Ym|Bi} -qa_|z{)Hdn]Kwh7C1"&uGfeWn޳WXykO4Gn/PyV  eF1piz:_eۗ"NvϞX}S%mNOB[W  Avr-$^{?(o CLJOb481j`2@,>5ȵ˄OZk*!,i5MVVllp løm|h,!66h':A,ʼnyF< F-O[F2ŒZ6%]i3c͓Fg6٣5YhCS}Ҳ5z]p̽j5 lPƯZcg\"+Z>(cwٻ Vt(Kk/olY7W\)[<#3un :߸#:twc ޼>̮`gDQٕKJyUK7 zQ|4gA<8鼼BЌ;2n~{aWl\ݩ1φM3尽1n沑+g} g<cExᢇo#?M <sl1/}KpXLRW+[f)LQ/*pQ*I]XNGY#@a>JigH|=rj&78RVo3.^l\yUw&⬿170pfI??Z'Ozٚ;lĻ'PTQ&|N'Y&R$@t.e&%L&-&L?S>2Me3QnD{o;;A{h&I!\G0K++eԳFkS3c]>tmiyqyCSek?|JK#ߌ! |7L7?cf⿢`}&+7}<Ä(g">%f7xЯzˬd%䟚YP ۨWXҗc͒2NtuמnN|v-l#ʺ)[uAOM(Ld7§%yC3vzaYe*t[hb[(jbٴMh`bLd}}0#>kR&?/(hO~gn1=;̙ϙ3s?u}OT&ɢbBNPI}X,zUqƳ 5@[W>%4=g^*O D KսmLX(Vx9eЩ%40SiF9$=d?@S[,;K}}?3ͷٌs:k uJUt5qL 4ku}z`61~ 4-&`3 l}ks;v)`x:i9o-$B%WUFJfתѱWoDf*v8;rn,ֹGLfc&y`l$;Kt~B)v(Nұۃ!}`v1(l~"?Dxh-xjef-F,^+VlYv&aq' g k&3l-c>8Wj|]1bgu ~LStuf3wTLf:3"~FgF~@mƄY ,ΠId~<_sP #8U^k3~\@bk3pʙSC߷nvE2ȃʆj:$?|b( 9Vr90==GjS)@Sм2 JM(:OynG<<2EJ Ú2˗3gTOyRh g:(Yt(D:XHdcNXMqG|;!}#lur:٩3IZDiieDik._Y}=Y409e ֳǝi|͆6eNir̳Oky쀫U]i&<(X<{oZ<쪂<+;hx(=`bBЖM?m7iO8ef @4vaU)>>-8y' jԩrBK ?LpY =\re&lêO;7v}W{$ܣ*ˈ[7jpܱ#Xx$fbHSs"%|`*k~}zk-WDn;pvIg&bp㾎9is)g_T >ۺ#ճ{^n/c<de})[Bz]hDC?Z1uqA@R~,N6=K% ֗t/JBtUwuz͹T'd?QUh[*6/~J[eW567Hq{^G-=V(Fy9K>];]*&0kYImw֢fRiX%[~Z=FE?*d5ޙr~į.gZQ<\[sKf(o7ιDu_GO^US9FNy4n3X:T7Ji;te> r  rP9!'-~oVtxs}{ 17<OB%IPs^g pi|&)M20Oh+'0Q hp   $Kein FolientiteleGnter RothhardteIrene Rothhardt970Microsoft PowerPointP@fb@%B @){:@:\GPoM  R('& &&#TNPP0D & TNPP &&TNPP     'A x(xKʦ """)))UUUMMMBBB999|PP3f3333f333ff3fffff3f3f̙f3333f3333333333f3333333f3f33ff3f3f3f3333f3333333f3̙33333f333ff3ffffff3f33f3ff3f3f3ffff3fffffffff3fffffff3f̙ffff3ff333f3ff33fff33f3ff̙3f3f3333f333ff3fffff̙̙3̙f̙̙̙3f̙3f3f3333f333ff3fffff3f3f̙3ffffffffff!___wwwnmnmsmnnrnnrnnrnnmsnmtLLLLLLLLLLLLLLLLLLLmmmmmmmmmmmmmmmmmmmmmLLLLLLLLLLLLLLLLLLLLCCCCCCCCCCCCCCCCCCCCCDJJJnJmJJJJDJmJJJmJJJmJmmmmJmmmnmmmmmmmmmmmmm#D#D#D#D##D#D#D#D#D# CCCC  CC CCC  C"<C"C"C "=C  CmCCCmCs _PID_GUIDAN{7B06F80A-31DC-4CC5-8760-6CB610A24B5D}Root EntrydO)@Picturesx$Current User%SummaryInformation(R_0SneedSneedHarry M. 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