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Soa modeling & bpmn
1. Service Oriented Modeling
and
Business Process Management &
Notation (BPMN)
Presented by:
Nadeem Aftab
(naaf1001@student.miun.se)
Ayaz Shahid
(aysh1000@student.miun.se)
Addisu Lodamo
(adlo1001@student.miun.se)
2. Overview
• Introduction
• SOA life Cycle
• Modeling Approaches
• Service Oriented Modeling Framework (SOMF)
• BPMN
• Question/Answer Session
• References
3. Introduction
• We tend to replace old technologies with new
one
• The interoperability, reusability, and other
issues
• Concept of SOA
▫ Maximize the software asset reuse.
▫ Addresses the challenges of tightly coupled
software
▫ Favor the loosely coupled software
▫ Also tackles budget and ROI issues
4. What is SOA modeling
“Service-oriented modeling is a software development
practice that employees modeling disciplines and
language to provide strategic and tactical solutions to
enterprise problems. This anthropomorphic modeling
paradigm advocates a holistic view of analysis, design
and architecture of all organizational software entities,
conceiving them as a service-oriented assets, namely
services”. [Michael Bell]
5. SOA life Cycle
Service Metamorphosis
Strategy
Structure
Governance
Funding
Return on Investment(ROI)
7. Strategy
• Driving Force of any Project.
• Long-Term plan for service life cycle.
• Essential for scheduling events, planning stage
and create timetable.
• Should not offer small-scale solution.
• Should contribute
▫ Proactive approach to address unseen events and stability.
▫ Road map, alternative and agility.
▫ Reachable, measurable and realistic mile stone within budget and
time.
8. Structure
• Structure means framework in which services are
constructed qualified and operated in production
environment.
• It should be flexible that enable effective management
service.
• Framework Components of Structure
▫ Timeline
▫ Events
▫ Season
▫ Discipline
11. Events
• Begins, last for while and then disappear.
• Have pattern
• Start at particular time.
• Types of events
▫ Planned events
▫ Unplanned
• Four Major Events.
▫ Staged
▫ Unpredictable
▫ Random
▫ Conditional
12. Season
• Season are timeframe in which services transform from
idea to physical entities and deployed in production.
• Major Season.
▫ Design-time Season
▫ Run-Time Season.
13. Discipline
• Discipline are best practices and standards that facilitate service
design, architecture, construction, operation in production and
management initiatives throughout services oriented life cycle
timeframe.
• Types of Discipline:
▫ Season Discipline
Design-Time
Run-time
▫ Continuous Discipline
14. SOA life Cycle Model (cont.)
• Governance
• Funding
• Return On Investment.
16. SOMA
• IBM introduced SOMA in 2004
• It implements the Service oriented analysis and
design through Identification, Specification &
realization of services, components and flows.
• SOMA Life Cycle consists of:
▫ Identification
▫ Specification
▫ Realization
▫ Implementation
▫ Deployment
▫ Management
17. Identification
Top-down
Business use cases> Specification for business
Services.
Bottom-Up
Review and analysis existing System.
Middle-out
Ties services to goal and sub goals.
18. Specification
• Classification
▫ Hierarchy
▫ composite
• Subsystem
▫ Interdependencies and flow between sub systems
▫ Object Model
• Composite Specification
▫ Data, Rules, Services.
• Services Allocation
▫ Rules Objects, Mediators.
20. Service Oriented Modeling Framework
(SOMF)
• Modeling framework structure is a high level
map that depicts various components that
contribute a successful modeling approach
• It identifies “What to do” aspect of service
development scheme
• Used for effective project planning and to
identify the milestones of service oriented
initiative
23. Modeling Practices
• Abstraction
Concepts are intangible entities which originates from
persons ideas and they reside in the mind of person
The abstraction process employs conceptualization best
practice that yields conceptual services which are treated
like a valuable asset despite being intangible
• Realization
The realization process starts when most of the ideas
have been formalized and established as organizational
concepts during abstraction phase
The goal of realization practice is to transform the
intangible services in to more concrete software assets
24. Modeling Environments
• It is not a physical location where modeling process take
place.
• The modeling environment is about four P’s
▫ People: denotes the personnel involved in guiding and
enforcing modeling disciplines which includes business and
technological personnel as well.
▫ Planning: identifies the tactical and strategic aspects of
the process. It includes project plans, strategy documents,
design and architectural blueprints and diagrams.
▫ Process: the sequence of activities that business and
technological personnel peruse to achieve modeling goals.
▫ Policies: how a solution can be proposed in environmental
framework. Management perspectives, check and balance
and modeling standards reflects the policies.
25. Modeling Environment (Cont.)
• Conceptual Environment
▫ Conceptual environment assist the following
activities:
Facilitate the studies of organization business model
and business strategies
Involving business and technology personnel in
conceptualization session
Helps architects, developers and modelers in
development of conceptual services
26. Modeling Environment (Cont.)
• Analysis Environment
▫ The analysis environment facilitates the
transformation of conceptual services into an
analysis service for further inspection and
categorization
• Logical Environment
▫ The logical environment supports the
transformation of analysis services onto more
tangible design services
27. Discipline Specific Modeling
• Modeling discipline is a field of knowledge that
offers standards and policies to facilitate service
oriented development activities during service
life cycle.
• It identifies the core process in which business
and technical personnel must be engaged
28. Discipline Specific Modeling (cont.)
• Service oriented modeling discipline focuses on
the six areas of expertise:
▫ Conceptualization
▫ Discovery and analysis
▫ Business integration
▫ Design
▫ Conceptual Architecture
▫ Logical Architecture
29. Service Oriented Conceptualization
• Service oriented modeling process starts from
service conceptualization phase
• Driving concepts behind future solution services
are indentified
• The service oriented conceptualization process
yields intangible service oriented assets called
“conceptual services”
30. Service oriented conceptualization model
▫ Attribution Analysis
Characterizing business solution preposition in
terms of features, quality and properties
▫ Identification
it enables the discovery of services
31. Service oriented discovery and analysis
• It is also used to identify the services that can
contribute to business or technological
solutions.
• In discovery and analysis we verify the
conceptual services that are devised during
conceptualization phase.
• The viability of the conceptual services are also
checked in discovery and analysis phase
33. Discovery and Analysis Activities
• Typing & Profiling:
It enables us to label a service base on its organizational
identity and business & technological context.
• Service Analysis:
Determines whether a business solution is viable to
participate.
Use service granularity assessment to check viability.
It also validates the practicality, loose coupling and
reusability of the services.
• Service Analysis modeling:
▫ Service analysis modeling creates the miniature replica
of future service oriented implementation
▫ Analysis modeling is presented in graphical artifacts or
diagrams which show the sense of how the actual
solution formation will look like
36. Service-Oriented Business Integration
• Service-Oriented Business Integration
advocates finding the right match between services and their
corresponding business architecture .
• Conceptual business integration
Represent business architectures that support the
organization’s products, maintain communications with
clients and partners and facilitate better management
• Structural business integration
Provides various methods to enable proper integration of
services with various business domains
38. Service-Oriented Design Model
• Creates a solution wireframe that can facilitate
service life cycle architecture initiatives.
• Offers tools and guidance to connect the dots,
device service collaboration and interface
mechanisms, establish solid service formations
that can coexist in well-coordinated ecosystem
and manage transactions.
39. Service-Oriented Design Model
Service-oriented design steps
1. Service relationship modeling
▫ Specifies how message exchange and coordination between
consumer and services are done
▫ Grant safe access to subscribers for public services
2. Logical structure modeling
▫ Represent the solution to the problem in structural perspective
3. Service behavioral modeling
▫ Concerned with behavior of services in a particular operating
environment.
▫ Solves problems stemming from service interaction and
collaboration as well as coordination between activities.
40. Conceptual Architecture
• The service oriented conceptual architecture
process is to design a strategy and indentify the
general directions before addressing the tangible
aspects of the proposed architecture.
• To address the general direction of an
organizational architecture and to identify the
major architecture components a conceptual
architecture diagram is used
43. Logical Architecture
• It addresses the asset utilization, consumption,
reusability, interoperability and loose coupling.
• The asset utilization diagram provides detailed
interaction between the deployed software
package
48. SOMF Modeling generations
Used-to-be
▫ The software components deployed and
configured in past
As-is
▫ Software components that are being utilized
now
To-be
▫ Design of software components that will be
deployed and configured in future
50. Contents
General Overview
Why BPMN ?
Elements of BPMN
Flow Objects
Connection Objects
SwimLanes
Artifact Objects
51. General Overview
Business Process is a collection of related ,structured
activities or tasks that produce a specific service (serve a
Managment
particular goal) for a particular customer.
Operational Processes: Core business activities , Create primary
value stream.
Management Processes: Govern operation of a process
Supporting Processes: Support core activities
Operational
Supporting
52. General Overview
Business process modeling is the activity of representing
processes of an enterprise, so that the current (“as is ”) process
may be analyzed and improved in the future (“to be”).
BPMN defines Business Process Diagram (BPD), which is made
up of set of graphical elements. These elements enable easy
development of simple diagrams that look familiar to most
business analysts (e.g. a flowchart diagram)
Creating a simple mechanism to model business processes and
at the same time handling the complexity inherent to business
processes is one of the driving force for the development of
BPMN.
55. General Overview
The primary goal of BPMN is to provide a notation that is
readily understandable by all business users, from the
business analysts that create the initial drafts of the process ,
to the technical developers responsible for implementing the
technology that will perform those processes and finally, to
the business people who will manage and monitor those
processes.
The second goal of BPMN ensure that XML languages
designed for the execution of business language such as
WSBPEL, can be visualized with a business-oriented notation.
56. General Overview
Using BPMN it is possible to model
Orchestration processes
Private non-executable (internal) Business Processes
Private executable (internal) Business processes
Public processes
Choreographies
Collaborations
A view of conversations
58. Why BPMN + SOMF?
Allows for the emergence of a modeling viewpoint
wherein business process activities are directly related
to the services that realize them.
Early discovery of organizational core entities.
Clarifies the direction and scope for impending
software development projects.
Enables practitioners to employ the SOMF
transparency model to trace modifications to business
processes and keep track on return on investments
(ROI).
59. Basic Elements of BPMN
Sequence
Activity flow
Message
Gateway flow
Artifacts
Event Associatio Document/
n Data
Connection
objects
Flow Objects
Group of
SwimLanes Elements
lane Lane
z
2
Pool
Text
annotation
1
60. Flow Objects
The main graphical elements that define the behavior
of a process.
Activities :
Activities represent the work that is carried out as
a part of a business process.
Gateways : Represent modeling element for
divergence and convergence of the flow
61. Flow Objects
Events :
Represents something that happens in the course
of the business process. Usually have a cause and
a result
62. Connecting Objects
Connect two flow objects
Sequence Lines : represent in which order the
activities will be performed.
Associations: Represent association between data,
text and other artifacts with flow objects.
Message Lines: represent the flow of message between
two separate process participants that send and receive
them.
63. SwimLanes
Organize activities into separate visual categories in
order to illustrate different functional capabilities or
responsibilities.
Pool : Represents different participants in a process.
Lanes: A sub partition within the pool.
64. Artifacts
Provide ability to add context appropriate to the specific modeling situation.
Data Objects: A mechanism to show how data is required or produced by
activities.
Groups: Used for documentation and analysis purpose.
Annotations: Provide additional text information to the reader of the
BPNM diagram.
Message : depicts the contents of a communication between two
participants.
Not Allowed to override basic meanings of graphical
representation.
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Where is
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66. Integrating BPMN and SOMF
A Service can be correlated with one or more BPMN
constructs at one of the three levels:
1. At a business process element level.
2. At the sub-process element level
3. At the individual , atomic activity level.
68. BPMN Rules
Chronological approach-process models should be oriented
on time line(from left to right or topdown)
Processes generally begin with triggering events and flow
through to significant business results.
All tasks or activities are assigned to roles that are
meaningful to people in the business.
A complete model should display how objects or data (both )
are transferred and where they are going.
69. BPMN Rules
A process can be modeled in hierarchical fashion
(e.g. with sub process)
Establish organization standards or guidelines
for developing models and naming model
elements (process dictionary)
Establish standards for versioning methods
associated with the process model and artifact
level to provide requirement traceability(Version
Control Systems).
71. References
• Service-oriented modeling, Service analysis, Design and
Architecture by Michael Bell(2008)
• Service-oriented modeling and architecture, How to identify,
specify, and realize services for your SOA by Ali Arsanjani,
Ph.D. (Nov 2004)
• Business Process Model and Notation (BPMN) Version 2.0
• Combining the Service Oriented Modeling
Framework™(SOMF™) with the Business Process Modeling
Notation™(BPMN™) Sep 2011
