Recent achievements in automated database design based on business process models

Transcription

1 16 th Workshop Software Engineering Education and Reverse Engineering Jahorina, August Recent achievements in automated database design based on business process models D. Banjac, D. Brdjanin and G. Banjac University of Banja Luka, Bosnia & Herzegovina

2 About this presentation Introduction Domain specific languages Examples of DSLs Business modeling language Implementation Approach Metamodel Example of automated generation of CDM Conclusion 2

3 Introduction There are papers that present automated generation of the initial conceptual database model (CDM) based on different business process modeling notations Source: Business process model (BPM) represented by different business process modeling notations (UML activity diagram, BPMN, etc. ) Target: CDM represented by UML class diagram In order to achieve metamodel independency we implemented Domain specific language (DSL) as intermediate layer, between source and target model 3

4 Domain specific languages Domain Specific Language (DSL) is a computer programming language of limited expressiveness focused on a particular domain. (Martin Fowler) Domain - an area or sphere of knowledge, influence, or activity Two main forms: External DSL (free standing) language parsed independently of the host general purpose language (GPL), e.g. regular expressions, CSS Internal DSL (embedded) designed and implemented using GPL, particular form of API in a host GPL, e.g. JMock Each DSL consists of: Abstract syntax defines domain concepts, their attributes and relations Concrete syntax language syntax in its representation that we see Semantics usually added with interpretation or code generation 4

5 Example of DSLs Regular expressions, SQL, CSS, make, rake, ant, BPMN etc. SELECT * FROM Course c WHERE c.ects > 6; body { background-color: lightblue; h1 { color: white; text-align: center; p { font-family: verdana; font-size: 20px; hellomake: hellomake.c hellofunc.c gcc -o hellomake hellomake.c hellofunc.c -I. <project name="anexampleproject" default="jarit" basedir="."> <property name="src" location="src"/> <property name="build" location="build"/> <property name="distrib" location="distrib"/> <target name="compile" description="compile your Java code from src into build" > <javac srcdir="${src" destdir="${build"/> </target> <target name="jarit" depends="compile" description="jar it up" > <jar jarfile="${distrib/anexampleproject.jar" basedir="${build"/> </target> </project> 5

6 Implementation of BML DSL called business modeling language (BML) is developed BML describes (so far identified) semantic capacity of the business process models BML provides independency from different business process modeling notations used for modeling the source model Identified transformation rules were used to implement generator which transforms BML to initial CDM We used Xtext framework for implementation of DSL We used Xtend for code generation We, also, implemented generators to transform BPM represented by BPMN and UML activity diagram to BML (Acceleo implementation) 6

7 Approach Source Target BPMN M2M CD AD M2M CD Source BML Target BPMN BML CD AD 7

8 Metamodel of BML Abstract syntax tree (AST) is represented by Ecore model 8

9 Rules for mapping BPM CDM Classes T 1 T 2 P L2 P P_L1 P1 T1 O T2 P1 P2 L1 P_L2 P2 MF O MF T 3 P P O T1 O [state] O_state O 9

10 Rules for mapping BPM CDM Associations T 4 P L2 L1 * 1 P_L1 P P_L2 P_P_L1 1 * P_P_L2 T 5 O T1 T2 T1 T2 * * T 6 O P 1 P 1 P2 P1 MF P1 1 P1_MF1 * MF * 1 P2_MF1 P2 P T 7 T 8 1 P1 O O T1 T2 [state] * * T1 T2 * O_state T1 1 O T 9 O1 T O2 O1 m 1 T m 2 O2 10

11 Source model Order processing - BPMN 11

12 BML Order processing - BPMN /* Participants and roles */ participant Supplier role Stockman of Supplier role Driver of Supplier role Commercial of Supplier participant Customer /* Objects */ object OrderHeader object Response object CatalogItem object Delivery object Request object StockItem object OrderDetail /* ObjectReference */ objectreference ExistingStockItem_ references StockItem existing objectreference ExistingCatalogItem_ references CatalogItem existing objectreference OrderHeader_ references OrderHeader objectreference Delivery_New references Delivery[New] objectreference OrderDetail_New references OrderDetail[New] objectreference StockItem_Prepared references StockItem[Prepared] objectreference OrderHeader_Accepted references OrderHeader[Accepted] objectreference OrderHeader_New references OrderHeader[New] objectreference OrderHeader_Canceled references OrderHeader[Canceled] objectreference OrderDetail_Confirmed references OrderDetail[Confirmed]... /* Tasks */ task SendOrderSpecification_1 { actor: Customer input { OrderDetail_New multiplicity -1 output { OrderDetail_ multiplicity -1 task Receive_2 { actor: Customer input { Delivery_ multiplicity 1 output { task AcceptOrder_3 { actor: Commercial input { OrderHeader_New multiplicity 1 output { OrderHeader_Accepted multiplicity

13 Target model Order processing - BPMN 13

14 Order processing Activity diagram BML 14

15 Conclusion BML provides source model independency Potential changes in transformation rules will affect BML CD generator, while generators which transform concrete business process modeling notations will remain unchanged Generation of the target conceptual model with a high percentage of completeness and precision In the future we plan to: further identify the semantic capacity of BPMs for automated CDM design improve the BML accordingly to identification of the semantic capacity of BPMs implement generators for some other business process modeling notations 15

16 16 th Workshop Software Engineering Education and Reverse Engineering Jahorina, August D. Banjac, D. Brdjanin and G. Banjac University of Banja Luka, Bosnia & Herzegovina Recent achievements in automated database design based on business process models Thank You!