Ngen oss bss - architecture evolution
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The document discusses next generation OSS/BSS architecture and tools. It describes the Telecom Management Network (TMN) reference model, which provided a standardized architecture for managing telecommunications networks. The TMN model includes functional, physical, informational, and logical layered architectures. It also discusses challenges with legacy OSS/BSS systems and introduces the NGOSS framework as a set of tools and lifecycle developed by the TM Forum to help design and implement next generation management systems, including the eTOM framework for defining business processes and the SID for defining shared information.
Ngen oss bss - architecture evolution
- 1. NGEN OSS/BSS Architecture evolution G r a z i o Pa n i c o OSS/BSS Solution Delivery grazio.panico@witech.it 1
- 2. Content • Next Generation OSS/BSS • Business Process Management (BPM) • IP Multimedia Subsystem (IMS) • Cloud Computing 2
- 3. Next GEN OSS/BSS • Telecom Management Network • Next Generation Operation Systems & Software 3
- 4. OSS & BSS: a definition Operation Support System • suite of software designed specifically to manage a large network infrastructure, connecting individual sub-systems • supporting processes • maintaining network inventory, • Provisioning services • configuring network components • managing faults Business Support System • complementary to OSS, typically refers to "business systems" dealing with customers • supporting processes • Order Management, • Billing and Payments processing • Customer care • Sales support • … 4
- 5. OSS & BSS: evolution history 2000 Next Generation 1990s OSS/BSS TMN Then come computers • Specialized Legacy Applications Before 1970 • Swivel Chair • OSS activities were Integration performed by manual administrative processes 5
- 6. OSS/BSS: early needs Saving Investments • For many operations, operational costs for network and service management are higher than equipment costs • Changing service and equipment needs within operational platforms are common practice (competition) Competition • Enable Time-to market • Do More with Less Interoperability Integration • Most as swivel chair integration Management • Networks, Service and Business 6
- 7. TMN Reference Model (Hierarchical) Telecommunication Management Network Joint effort by ITU-T and ISO (from 1988 to 1996) - Recommendation M3010 Objective • The basic concept behind a TMN is to provide a organized architecture to achieve the interconnection between various types of OS’s and/or telecommunications equipment for the exchange of management information using an agreed architecture with standardized interfaces including protocols and messages Data Communcation Network Telecommunication Other TMN Network 7
- 8. TMN Architecture Functional architecture • Functional modules Architecture • Reference points between modules Physical architecture • Physical Building Blocks Funzional Physical Informational Logical Layerd • Physical interfaces between blocks Informational architecture • Information exchange between entities • Object oriented Logical Leyered architecture • Responsabilities 8
- 9. TMN Architecture Functional architecture • Role that a function performs • OSF, NEF, MF, WSF, QAF • Management function that is performed • Falt, Configuration, Accounting, Performance, Security • Reference points between modules • Interface • OSF (Operations System Functions): NMS, testing, accounting, trouble No TMN system tracking • NEF (Network Element Functions): NM agent, MIB, collision rate • MF (Mediation Function): Operations on the information between network elements; e.g. filtering, protocol conversion. MF can be shared between multiple OSSs; e.g. RMON • WSF (Workstation Functions): Human-TMN activities interface; e.g., GUI 9 • QAF (Adapter Functions): to accommodate non-TMN entities; e.g. proxy
- 10. TMN Architecture Informational architecture • In order to allow effective definition of managed resources, TMN makes use of OSI Systems Management principles and is based on an object-oriented paradigm. • Management systems exchange information modeled in terms of managed objects (MO) • Two type of communication services: interactive (rpc) and file oriented (ftp): Managed object are identified by • the attributes visible at its boundary • the management operations which may be applied to it • The behavior exhibited by it in response to management operations or in reaction to other types of stimuli (e.g., threshold crossing) • The notifications emitted by it 10
- 11. TMN Architecture Phisical architecture • Identifies physical build block • Define how function blocks and reference point can be implemented (maps) • OS: Operations Systems • MD: Mediation Device • QA: Q-Adapter • NE: Network Elements • DCN: Data Communications Network • WS: Work Station 11
- 12. TMN Architecture Logical Layered architecture • The most valuable idea of TMN model • Hierarchy of management responsibilities • Layers of management functionality • To deal with the management complexity 12
- 13. TMN Architecture Logical Layered architecture • The most valuable idea of TMN model • Hierarchy of management responsibilities • Layers of management functionality • To deal with the management complexity Element Management Layer • Function of NE are managed by OPFs in EML • EML deal with vendor specific functions • Hide NE function to NML Example • Detection of equipment errors, • Measuring the temperature of equipment, • Measuring the resources that are being used, like CPU- time, buffer space, queue length etc., • Updating firmware 13
- 14. TMN Architecture Logical Layered architecture • The most valuable idea of TMN model • Hierarchy of management responsibilities • Layers of management functionality • To deal with the management complexity Network Management Layer • manages interaction between equipments • is vendor independent • provision, terminate, modify network capabilities • Provide to SML informatio about performance, usage, availability, etc. Example • creation of the complete network view, • monitoring of link utilization, • optimizing network performance, and • detection of faults 14
- 15. TMN Architecture Logical Layered architecture • The most valuable idea of TMN model • Hierarchy of management responsibilities • Layers of management functionality • To deal with the management complexity Service Management Layer • Responsible for aspect facing directly with with Customer or other Providers Example • Quality of Service (delay, loss, etc.), • Accounting, • Addition and removal of users The most valuable contribute to other framework 15
- 16. TMN Architecture Logical Layered architecture • The most valuable idea of TMN model • Hierarchy of management responsibilities • Layers of management functionality • To deal with the management complexity Business Management Layer • Responsible for management of whole Enterprise • Define Policies and Strategies to manage services (and networks) • Deal with Legislation, Economics factors (pricings, competitors, etc.) 16
- 17. TMN Architecture: an example 17
- 18. TMN strengths/weakness Strengths • TMN is a very suitable framework for telecommunications management purpose since: • It identifies different abstraction levels • It is component based • It forces a structured approach when faces with the problem of network and service management • It is a widely adopted standard, which ensures that everyone speaks the same language • Hight Interoperability, by standardizing • Protcols, Information models, Services • Scalability • using the power of OSI systems management and the associated object approach • Security, which is essential at Element Management Layer (EML) Weakness • Implementation of TMN isn’t so easy • TMN functional architecture does not map very well to service management. It originates from the bottom layers of the pyramid • TMN is particularly strong at the bottom layers 18
- 19. Next GEN OSS/BSS • Telecom Management Network • Next Generation Operation Systems & Software 19
- 20. OSS/BSS: new challenges 20
- 21. OSS/BSS: new challenges Pressure • More productivity No time for new systems • More Customers and Services System overloaded • More authomation Business Process Management & re- ingineering 21
- 22. OSS/BSS: new challenges Pressure • More functionalities • Tailored services Systems become patchwork of functionalities 22
- 23. OSS/BSS: new challenges Pressure • Short time-to market No time to build new infrastructure, simply adapting old systems to new requirement 23
- 24. OSS/BSS: new challenges Pressure • New network technology are quickly introduced • Each has its own management system More complexity to manage Configuration, Activation, … become a challenge 24
- 25. OSS/BSS: new challenges Pressure • New Technology are available Need for a new approach 25
- 26. OSS/BSS: system health Legacy OSS systems • Proliferation • High cost to maintain and evolve • No clear scope • No open interface No integration infrastructure • Point to point integration • spaghetti integration • Swivel chain Integration 26
- 27. OSS/BSS: system health Silos of OSS end BSS • New Technology New OSS Silos • New Service New OSS Silos High manpower costs • because of a lack of automated process flow- through • Duplication of Systems, Functions, Data • Much more maintenance cost It is much more convenient to build an entire set of OSS system instead of integrating or extend existing ones!! 27
- 28. OSS/BSS: system health High manpower costs • because of a lack of automated process flow-through Poor time-to-revenue • because of have rigid and inflexible business processes Weak customer service • because of poorly integrated & systems with inaccurate data Slow growth • because processes and systems can’t scale Slow new service introduction • because of high risks & costs to make system changes Poor economies of scale • because of using hundreds of suppliers 28
- 29. OSS/BSS: process automation landscape change integration Limited by complexity of changing systems to keep up with # application Integration of process multiple enhancements Applications Hundreds or to achieve Changes not # process thousands of automation affordable discrete of a single Thousands OSS/BSS process Process of discrete applications Automation is processes not optimized 29
- 30. Flexible, Automated Business Processes Optimizing processes requires a multi- TMF Views step approach • Defining and engineering processes • Defining information in a common fashion • Defining systems to implement processes • Defining the interfaces between systems • Defining the way the systems plug together (architecture) The tools to achieve these steps are provided by NGOSS from end-to-end 30
- 31. Who Needs a New Way to Do OSS? Service Providers • Operational agility • Cost effective OSS/BSS implementations • Long term direction for IT strategy • IT systems that support rapidly evolving integrated services OSS Software Vendors • Affordable development costs • Supportable Software • Fitting into the OSS/BSS puzzle Systems Integrators • Predictable, repeatable, scalable, implementation projects • Broader ISV portfolio without steep learning curve 31
- 32. NGOSS framework: Tools and Lifecycle New Generation Operations Systems and Software TM Forum program since 2000 • International non-profit Association • Organize, guide, design and develop Next Generation Management Systems 32
- 33. NGOSS framework: Tools and Lifecycle The way (Lifecycle) Business View • Identification of Business Needs (Business Requirement) • Artifacts: • eTOM (Process) • SID (Information) 33
- 34. NGOSS framework: Tools and Lifecycle The way (Lifecycle) Business View System View • Modeling the system solution • System as “grey box” • Interoperability • COTS capabilities and policy • Process flow between systems • Artifacts: • SID (Information) • TNA (Distributed Architecture) 34
- 35. NGOSS framework: Tools and Lifecycle The way (Lifecycle) Business View System View Implementation view • Validating the proposed solution • COTS mapping • Thecnology mapping • Pilot • Artifacts: • Proposed solution • Proposed architecture 35
- 36. NGOSS framework: Tools and Lifecycle The way (Lifecycle) Business View System View Implementation view Deployment View • Realizing the solution 36
- 37. NGOSS framework: Tools and Lifecycle eTOM (Tool) Business Process Framework for Enterprise process Common language between Service Providers and their suppliers about what problem they are trying to solve • Define classification system for business processes • Inventory how processes are done today • Design how SP wants processes to work ITU Standad! Problems to solve • Define and prioritize problems in terms of business processes • Where are the lines drawn around products? 37 37
- 38. eTOM: the big picture Customer Strategy, Infrastructure & Product Operations Strategy & Commit Infrastructure Lifecycle Product Lifecycle Operations Support and Fulfillment Assurance Billing Management Management Readiness Marketing & Offer Management Customer Relationship Management Service Development & Management Service Management & Operations Resource Development and Management Resource Management & Operations (Application, Computing and Network) (Application, Computing and Network) Supply Chain Development and Management Supplier/Partner Relationship Management Enterprise Strategic & Brand Management, Stakeholder & External Disaster Recovery, Management Enterprise Market Research & Relations Management Security & Fraud Planning Advertising Management Research & Financial & Asset Human Resources Development, Enterprise Quality Management Management Technology Management, Process & IT Acquisition Planning & Architecture 38
- 39. eTOM: Ops horizontal Level 1 processes eTOM (Tool) – e Telecom Operation Map Customer Management • Acquisition • Up selling Service Management • Service Configuration • Service Assurance Resource Management • Resource provisioning Partner/Supplier Management • Supply chain processes 39
- 40. eTOM: Ops vertical Level 1 processes eTOM (Tool) Fulfillment (or provisioning) • Customer Need into Solution Assurance • Network monitoring • SLA management • Trouble Ticketing • Problem handling Billing • Rating • Billing • Usage collections Operation Support & Readiness 40
- 41. eTOM: Ops horizontal Level 2 processes 41
- 42. eTOM: Ops horizontal Level 3 processes 42
- 43. eTOM: process flow: Ordering (Fulfillment) 43
- 44. NGOSS framework: Tools and Lifecycle SID(Tool) – Shared Information Data Common language of NGOSS-based OSS/BSS systems A reference manual defining the thousands of pieces of information needed to map out business processes 44 44
- 45. SID: an example - Customer Customer is one of the SID “things” called “entities” “Entities” under customer 45 45
- 46. SID: example of bad Information modeling Billing CRM Customer: Customer: 1. Last Name, First Name 1. First name, middle init, last name 2. Customer ID number 2. Street Address, Zip code 3. Street Address, Zip code 3 Last 4 digits SSN 4. Social Security number 4. Customer Account number Translator Translator Trouble Ticketing Service Ordering Translator Translator Customer: Customer: 1. Customer ID number 1. Customer ID number 2. Social Security number 2. Last name, first name, middle 3. First name, last name init 4. Street Address, Zip code 3. Zip code, street address 46
- 47. SID: applying NGOS principle Billing CRM Customer: Customer: 1. Last Name, First Name 1. Last Name, First Name 2. Customer ID number 2. Customer ID number 3. Street Address, Zip code 3. Street Address, Zip code 4. Social Security number 4. Social Security number Customer: Trouble Ticketing 1. Last Name, First Name Service Ordering 2. Customer ID number 3. Street Address, Zip code Customer: 4. Social Security number 1. Last Name, First Name Customer: 2. Customer ID number 1. Last Name, First Name 3. Street Address, Zip code 2. Customer ID number 4. Social Security number 3. Street Address, Zip code 4. Social Security number 47
- 48. The SID Framework 48
- 49. NGOSS framework: Tools and Lifecycle TNA(Tool) – Technology Neutral Architecture Guidelines support the analysis, design, implementation and deployment of NGOSS-based open distributed computing solutions Defines contracts, the fundamental unit of interoperability within an NGOSS solution 49
- 50. TNA: principles The NGOSS supports the following TNA requirements 1. An NGOSS system must have re-useable software entities that offer their services via open, well-defined interfaces known as contracts. 2. An NGOSS system must have all its external dependencies explicitly defined. 3. An NGOSS system must be characterized by a separation of the services offered by the constituent components from the software that automates business processes across the components. 4. An NGOSS system must support data stewardship. For each datum, there is a steward that controls access and modification of the datum. 5. An NGOSS system must support a common communication mechanism like Java Message Service (JMS). 50
- 51. Traditional OSS/BSS Architecture Complex systems (overloaded) Data + Process Tightly coupled with each other (pair-wide interfaces) No communication BUS No data ownership A small change in one system typically would affect all the systems which interfaced with the system where the change was made. 51
- 52. TNA OSS/BSS Architecture WiTech BPM.-enabled architecture Open Source Ready! Communication Bus (ESB) Cloud Ready! Application Services Framework Services BPMS (SOA) Portals 52
- 53. NGOSS framework: Tools and Lifecycle Compliance Tests for Compliance to eTOM, SID and Architecture Can test against parts or whole NGOSS elements Tests products and solutions 53
- 54. NGOSS Compliance Testing Focused on defining what is testable in NGOSS and how to test it Working on defining an industry testing commercial strategy 54 54
- 55. NGOSS Sample Applications • Business process redesign • Map and analyze business processes to improve efficiency • Component development • Software engineering to create a new OSS component • Component integration • Integrating disparate OSS components • RFP process • Design and specify new OSS solutions using NGOSS • Create a new service • Modify OSS/BSS to add or change service parameters 55 55
- 56. Who’s backing NGOSS? 56
- 57. Thank you for your interest! For more information, please visit our web site, call us or WiTech Spa send us an e-mail! Via Giuntini 25 56023 Cascina Loc. Navacchio (PISA) Italy www.witech.it Grazio Panico NGOSS solution delivery manager Phone: +39 050 775 056 Fax: +39 050 75 47 22 grazio.panico@witech.it Mobile: +39 347 516 44 01 E-mail: info@witech.it 57