World®’16

TechTalk:CALiveAPICreatorMythBuster:DomainLogicRequiresDomainSpecificCodeValHuber– ConsultingEngineer– CATechnologies

DO3T14TV

DEVOPS

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Abstract

MakingupdatesisvirtuallyneveramatterofmakingsimpleSQLupdates.TherehastobeBusinessLogictoenforcetheintegrityofthedata,forexampletoensurethatbalancesdon’texceedcreditlimits,orthatstudentsdon’ttaketoomanycourses.It’scommonlybelievedthatsuchdomain-specificlogic:•Requiresdomain-specificcode,andlotsofit(often10-20pagesforeachtable– it’samajoraspectofanysystem)•isimpenetrabletobusinessusers•isslowspeedandhighcomplexity:(i.e.,notcompatiblewiththeAppEconomy)Thistalkwillimaginethatsuchlogiccanbedevelopedwithadegreeofspeedandsimplicity,morelikeaspreadsheetthanadevelopmentproject.

.

ValHuber

CATechnologiesConsultingEngineer

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Agenda

SIZINGDOMAINLOGIC

REACTIVELOGIC

SUMMARY

SCALINGTOCOMPLEXITY– ALLOCATION

SCALINGTOCOMPLEXITY– BILLOFMATERIALS

SCALINGTOCOMPLEXITY– B2BINTEGRATION

1

2

3

4

5

6

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AnatomyofaSystem– WhereIstheEffortBackendisNearlyHalf

BigNumbers:20pages,pertable(1-2months)DozenstoHundredsofTables

UI- FrontOffice30%

UI- BackOffice25%

Backend-SQL10%

Backend-Logic25%

Backend-Integration

10%

SYSTEMCOMPONENTS*

*Percentagesarebasedondomainexperience

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Ideal:ExecutableCocktailNapkin

200linesofcode

Solves…ü AddOrderü DeleteOrderü PayOrderü Un-payOrderü MoveOrderü AddItemü DeleteItemü ReselectProductü ChangeQuantityü Combinations

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WhatIsReactiveLogicSpreadsheet-likeExpressionsforMulti-Table ValidationsandComputations

1. YouProvideSpreadsheet-likeExpressions

forDBtables,columns

2. APIServerReacts toChanges,automating

• Invocation

• Chaining

• Ordering

• SQL(withOptimizations)

Simple…ADozenRules

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Let’sExamineaTypical,SmallProblemExecutableSpecification

Agilityü 40Xmoreconcisethancode*

Qualityü AutomaticInvocation

Maintenanceü AutomaticOrdering

Transparency

Vs…200LinesofCode

*BasedonCA’sinternaltestingandcustomerinterviews.

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ReactiveIsEffectiveonSmallProblems…

CathedralTermites

UseRules

Whataboutenterprise-scalecomplexity?

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AllocatePayment

§ Allocateaproviderpayments.amount

todesignatedrecipientOrders,

§ creatingallocationPayment

purchase_order_allocation objects(a

Provider/RecipientJunction)foreach

suchallocation.

§ Adjustorder,customerbalances

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Allocation:Solution6Rules

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PriceRollup

1. WhenComponentPriceChanges…

2. UpdateKitPrices,and...

3. ContainingKits

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PriceRollup:Solution4Rules

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APIServers…fortheAppEconomy

Web

Mobile

Partners

WebHooks

DBsAPI

Server

OmniChannelBusiness

Shippers,Suppliers

1Integration

3

2

Logic

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SystemsIntegration

AutomaticObjectModel

Discovery– CodeCompletion

Resources– point/clickmapping

andtransformation

Extensibility– LoadableLibraries

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BusinessValueAgility,EmpowermentintheAppEconomy

Agility– GettoMarket10XFaster*

thanhandcoding

– Maintain/Iterate

(AutomaticOrdering)

Empowerment

– ExecutableSpecification

– SeeAlso…§ AppCreation§ DBCreation§ APICreation

40XMoreConcisethancoding*

*BasedonCA’sinternaltestingandcustomerinterviews.

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Agility,Empowerment

10XFaster*

Transparent– ExecutableSpec

Composable

LogicisComplex,Slow

5Rules:200LinesofCode

SlowtoBuild,Change

InscrutabletoBusinessUsers

ReactiveisSimple,Powerful

40XMoreConcise*

Spreadsheet-likeSimplicity

SolvesClassicalComplexCases,ExtensiblewithJavaScript

BusinessLogicIsCoreIt’stheBusinessIdea…abouthalfthesystem

*BasedonCA’sinternaltestingandcustomerinterviews,wedeterminedthatreactivelogicis40xmoreconcisethantraditionalcodeand10xfasterthantraditionalcoding.

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RecommendedSessions

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Innovation,EmpoweringAgilityfortheAppEconomy

http://www.ca.com/us/trials.html

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Questions?

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Thankyou.

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DevOps– APIManagementandApplicationDevelopment

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