Combinatorial Test Design - TAU
ements are equivalentExample: two hosts (x86 / PowerPC), two storage devices (Enterprise /Mid-Range / Low-End)
Multiplicity and Symmetry – cont.Naïve Model:–Host1 – x86 / PowerPC–Host2 – x86 / PowerPC–Storage1 – Enterprise / MidRange / LowEnd–Storage2 – Enterprise / MidRange / LowEndcy !nadnudele RbissoP:gWarnin)LowEnd 1egarotEnd) x86, Swt1osLo h1(e,glePossiba86, StorxFor examp 2tle Resoh(dalent touivnunqFor exaedebaymacy !mple, (host1 may bex86, hoequivalst2 Poent to (werPChost2 )x86, host1 x86)Warning:
Multiplicity and Symmetry – cont.Possible Solution:–numX86Running – 0 / 1 / 2–numPowerPCRunning – 0 / 1 / 2–numEnterpriseRunning – 0 / 1 / 2–numMidRangeRunning – 0 / 1 / 2–numLowEndRunning – 0 / 1 / 2–Not allowed: numX86Running numPowerPCRunning ! 2 numEnterpriseRunning numMidRangeRunning numLowEndRunning ! 2
Multiplicity and Symmetry – cont.An alternative approach:A tool and algorithm that supports designating equivalent parameters–And whether internal interactions are equivalentRequires a tool and algorithm that support dynamically changingcoverage requirements
Open ChallengesMuch better handling of existing data/tests–Existing test plans are almost never in the form we want them–In fact, often they’re not even structuredLifecycle of combinatorial models–Software systems evolve–The combinatorial models used for testing them should evolverespectively–Strive for minimal changes to the test suitesModel reuse, multi-model supportHigh-level combinatorial modeling language
SummaryCombinatorial Test Design is an effective test planning technique– Shift left: Handle your coverage concerns as early as possibleReduced redundancies, controlled risksApplicable at any stage of the development life cycle– Unit testing, function testing, system testing, integration testingInteresting combinatorial problemMany challenges for real-life deployment– Restrictions, negative testing, modeling patterns, concrete test case generation,utilization of existing test cases, software evolution, and more We believe that experience from real-life deployment should drive theresearch on CTD– Identifies the pain points that limit wide deployment by industry– Enables suitable solutions that can be adopted by industry
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In the mid-40s, orthogonal arrays were introduced by C. R. Rao to set the experiment plan From the mid-80s, orthogonal arrays were used for combinatorial testing of software and systems – R. Mandl, “Orthogonal
strong Combinatorial Chemistry /strong in Drug Research strong Combinatorial chemistry /strong and rational drug design Structure-based and computer-assisted design and virtual screening (LUDI, FlexX et al.) of protein ligands supplement strong combinatorial chemistry /strong . strong Combinatorial /strong design of drugs The necessary tools are already available but scoring functions have to be improved.
As in past years, Tau Beta Pi members participated prepared and facilitated a popsicle stick bridge building event. It was held during our Watson School of Engineering’s E-Week Community Day. For three hours, kids from the community could come in and we would help them design and construct a bridge usi
1 Introduction to Combinatorial Algebraic Topology Basic Topology Graphs to Simplicial Complexes Posets to Simplicial Complexes 2 Permutation Patterns Introduction and Motivation Applying Combinatorial Algebraic Topology Kozlov, Dimitry. Combinatorial algebraic topology. Vol. 21. Springer Science & Business Media, 2008.
topology and di erential geometry to the study of combinatorial spaces. Per-haps surprisingly, many of the standard ingredients of di erential topology and di erential geometry have combinatorial analogues. The combinatorial theories This work was partially supported by the National Science Foundation and the National Se-curity Agency. 177
Integrating natural product synthesis and combinatorial chemistry*,† A.Ganesan Department of Chemistry, University of Southampton, Southampton SO17 1BJ, United Kingdom Abstract: The fields of natural product total synthesis and combinatorial chemistry have major differences as well as much in common. Unique to combinatorial chemistry is the need
THE TAU EMPIRE The Tau are a relatively young, aspiring race, whose homeworld is situated deep in the galactic eastern rim of Ultima Segmentum. The ancestors of the Tau had been discovered by an Imperial exploratory mission
Stanley C. Rosenberg, Tau Beta Sigma -Delta Delta Honorary, Spring 2014 . Tyler Jason Ramsay, Tau Beta Sigma – Delta Delta, Spring 2015 . BethAyn Curtis, Tau Beta Sigma – Delta Delta Honorary, Spring 2015 . Awards and Recognition: District Alumni Secretary Award, 2013 . Tau Beta Sigma,
The Tau Manifesto Michael Hartl Tau Day, 2010 1 The circle constant Welcome to the Tau Manifesto. This manifesto is dedicated to one of the most important numbers in math- . has a minimum at a half period, and passes through zero at one-quarter and three-quarters of a period (Figure11). For reference, both figures show the value of (in radians)
