Course 5 – November 9 2017 Adrian Iftene [email protected]
Plan your second meeting with the person who coordinates the research practice!
Deadline: 8th week!
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Recapitulation course 4
◦ Modeling (EMF, IBM Rational Rose Modeler)
Business Process Modeling Notation
◦ Introduction
◦ Elements
◦ Examples
◦ Frameworks
Aspect Oriented Programming
◦ Introduction
Modeling
◦ The Value of Modeling
◦ EMF
◦ IBM Rational Rose Modeler
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Who?
What is modeling?
Why model?
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EMF Ecore
BPMN - graphical representation for specifying business processes in a business process
modeling
BPMN was developed by Business Process
Management Initiative (BPMI), and is currently maintained by the OMG (http://www.bpmn.org/)
The objective of BPMN is to support business
process management for both technical users and business users
The current version of BPMN is 2.0.2
(http://www.omg.org/spec/BPMN/2.0.2/)
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BPMN is based on a flowcharting technique very similar to activity diagrams from UML
The primary goal of BPMN is to provide a
standard notation that is readily understandable by all business stakeholders:
◦ business analysts - who create and refine the processes
◦ technical developers - responsible for implementing
◦ business managers - who monitor and manage the processes
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Event - something that happens
◦ Catching - they might catch an incoming message to Start process
◦ Throwing - they might throw a message at the End of the process
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Activity - describes the kind of work which must be done
◦ Task - a single unit of work
◦ Sub-process - Used to hide or reveal additional levels of business process detail
◦ Transaction - A form of sub-process in which all contained activities must be treated as a whole
All contained activities must all be completed to meet an objective, and if any one of them fails they must all be compensated (undone)
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A Gateway is represented with a diamond shape
and will determine forking and merging of paths
depending on the conditions expressed
A Sequence Flow shows in which order the activities will be performed
A Message Flow tells us what messages flow across organizational boundaries
An Association is used to associate an Artifact or text to a Flow Object
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Swimlanes are a visual mechanism of organizing and categorizing activities
◦ Pool - Represents major participants in a process (contains one or more lanes (like a real swimming pool)) A pool can be open (showing internal detail) or collapsed (hiding internal detail)
◦ Lane - Used to organize and categories activities within a pool according to function or role. A lane contains the Flow Objects, Connecting Objects and Artifacts.
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Artifacts allow developers to bring some more information into the model/diagram
◦ Data Objects show the reader which data is required or produced in an activity
◦ An Annotation is used to give the reader of the model/diagram an understandable
impression
◦ A Group is used to group different
activities but does not affect the flow in the
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Private (internal) business processes – are internal to a specific organization and are called workflow or BPM processes
Abstract (public) processes - represent the
interactions between a private business process and another process or participant
Collaboration (global) processes - A collaboration
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Visio BPMN modeler
◦ Microsoft Visio Professional 2010, 2013 (e-academy)
Intalio
◦ Java, Eclipse
Jadex
◦ Java, Eclipse
JBPM
◦ Java, Apache Ant
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AOP is a programming paradigm which isolates secondary or supporting functions from the main program’s business logic
AOP increases modularity by allowing the separation of cross- cutting concerns
AOP includes programming techniques and tools that support the modularization of concerns at the level of the source code
Aspects emerged out of object-oriented programming and computational reflection
Aspects relate closely to subjects, mixings, delegation
Since at least the 1970s, developers have been using forms of interception and dispatch-patching
Designers have considered alternative ways to achieve separation of code, such as C#'s partial types, but
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AOP as such has a number of antecedents: the Visitor Design Pattern, CLOS MOP (Common Lisp Object
System - Metaobject Protocol)
AspectJ developed by Gregor Kiczales and
colleagues at Xerox PARC (2001)
Hyper/J and Concern Manipulation Environment offered by IBM's research team in 2001 (which have not seen wide usage)
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Cross-cutting concerns - aspects of a program which affect other concerns
Advice - additional code
Pointcut - point where additional code is executed
Aspect - the combination of the pointcut and the advice
Even though most classes in an OO model will
perform a single, specific function, they often share common, secondary requirements with other
classes
For example, we may want to add logging to
classes within the data-access layer and also to classes in the UI layer whenever a thread enters or exits a method. Even though each class has a very different primary functionality, the code needed to
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This is the additional code that you want to apply to your existing model
In our previous example, this is the logging code that we want to apply whenever the thread enters or exits a method.
This is the term given to the point of execution in the
application at which cross-cutting concern needs to be applied
In our previous example, a pointcut is reached when the
thread enters a method, and another pointcut is reached when the thread exits the method
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The combination of the pointcut and the advice
In the example above, we add a logging aspect to our application by defining a pointcut and giving the correct advice.
Utility for aspect-oriented languages designed to take instructions specified by aspects and generate the
final implementation code
Takes information from raw class and aspects and creates new class => woven class
The weaver integrates aspects into the locations specified by the software as a pre-compilation step
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AspectJ - the most mature and fully featured framework
JBoss AOP - is a 100% Pure Java usuable in any programming environment
Aspectwerkz (AW) - one of the quickest and most fully featured AOP frameworks available
Nanning - a simple yet scalable aspect-oriented
framework for Java (Nanning is also nice "little" town in Guanxi province in southern China)
Eclipse IDE + AJDT (http://www.eclipse.org/ajdt/)
Create “New” + “AspectJ Project” (AspectJ Development Tools)
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AspectJ Plugin for NetBeans 6.7.x:
http://plugins.netbeans.org/PluginPortal/faces/PluginDetailPage.j sp?pluginid=22964
Using the AspectJ Plug-In Module for NetBeans 6.0+:
http://www.jroller.com/ramlog/entry/using_the_aspectj_plug_in1
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Use BPMN to create a business model, and use it in a new project component related to your project theme
Use AOP or MOP in your implementation
BPMN: http://www.bpmn.org/
BPMS Process Mapping BPM: http://interfacing.com/
Visio BPMN modeler Tutorial:
http://www.interfacing.com/uploads/File/Tutorial.pdf
Business process case studies:
http://interfacing.com/Literature/Business-process-case-studies/
Intalio: http://www.intalio.com/downloads
Jadex packages: http://jadex-processes.informatik.uni-
hamburg.de/xwiki/bin/view/Download/Available+Packages
Jadex Installation: http://jadex-processes.informatik.uni- hamburg.de/xwiki/bin/view/BPMN+Tutorial/02+Installation
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AOP: http://onjava.com/pub/a/onjava/2004/01/14/aop.html, http://en.wikipedia.org/wiki/Aspect-oriented_programming
AspectJ: http://www.eclipse.org/aspectj/
AspectJ Downloads: http://www.eclipse.org/aspectj/downloads.php
Aspectwerkz (AW): http://aspectwerkz.codehaus.org/
Nanning: http://nanning.codehaus.org/
jBoss AOP: http://www.jboss.org/jbossaop
Spring AOP tutorial:
http://technologiquepanorama.wordpress.com/2009/05/18/spring- aop-tutorial-i/
AJDT: AspectJ Development Tools: http://www.eclipse.org/ajdt/
AOP in Netbeans:
http://www.jroller.com/ramlog/entry/using_the_aspectj_plug_in1
http://plugins.netbeans.org/PluginPortal/faces/PluginDetailPage.jsp?
pluginid=22964
Framework for AOP in C#: http://rail.dei.uc.pt/
