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2012-2013

Mestrado em Engenharia de Redes de Comunicações

MSc in Communication Networks Engineering

ENGENHARIA DE SERVIÇOS

SERVICES ENGINEERING

Modelos e Normas 2:

NGOSS, TOM, eTOM, TAM,

SID, TISPAN

-Models and Standards 2:

NGOSS, TOM, eTOM, TAM,

(2)

Outline

Telecomm. Network Management: TMN

Architecture Models: TISPAN

Management Models: NGOSS Processes:

TOM, eTOM, TAM, SID

(3)

TMN Modeling Methods

(a) Layers

F

A

U

L

T

C

O

N

F

I

G

A

C

C

O

U

N

T

P

E

R

F

O

R

M

S

E

C

U

R

I

T

Y

(b) Functional Areas

(d) Information Models

Network Element Layer

Network Element

Management

Network

Management

Service Management

Business Management

(4)

Integrated View of TMN

F C A P S

WSF

SM-OSF

NM-OSF

NM-OSF

NE-OSF

NEF

QAF

BM-OSF

q

3

q

3

q

3

q

3

q

x

f

x

Business Management

Service Management

Network Management

Network Element

Management

Network Element

Layer

Functional Areas

Logical Layers

Functions &

Reference Points

(5)

TISPAN

Background

T

elecommunications &

I

nternet Converged

S

ervices &

P

rotocols for

A

dvanced

N

etworks

(TISPAN)

TISPAN is a standards group within the European

Telecommunication Standards Institute (ETSI)

Specialized in fixed networks & Internet

convergence

Defines a standards-based NGN architecture

Based on well defined sub-systems, functional

blocks & defined interfaces

Maximizes fixed & mobile convergence, through

adoption of 3G IMS components

(6)

TISPAN

TISPAN focuses on all aspects of

standardization for present and future

converged networks including NGN

TISPAN produces detailed implementable

deliverables that cover NGN

services

,

architectures

,

protocols

,

QoS

,

security

and

(7)

TISPAN NGN Genesis

‣A strong industry demand

For new generation Multimedia services over xDSL access

For preparing replacement of obsolescent PSTN

‣For a first Release of specifications in 2005

Giving main standards directions

With realistic and implementable solutions

‣TISPAN developed an architecture consisting of a

number of subsystems:

Access network attachment Subsystem, Resource and

admission control sub-system

Maximizing Fixed and Mobile convergence, through

adoption of 3G IMS component for support of

conversational services

(8)

TISPAN NGN Services Requirements

TISPAN_NGN supports legacy POTS services

(PSTN/ISDN Emulation)

Emulates the PSTN/ISDN Telephony service over an IP

infrastructure

Enable use of the existing ISDN Supplementary services

TISPAN_NGN R1 defines Voice Service (Simulation)

Similar - but not identical - to existing PSTN service

Including important supplementary services

Based on IMS capabilities for basic voice call

TISPAN extensions for simulation will be included in 3GPP

IMS

Standard capabilities with the aim of making the services

applicable for other IMS networks than TISPAN IMS,

e.g. mobile networks to facilitate seamless fixed mobile

convergence for Telephony over IP services

(9)
(10)
(11)
(12)

Telecoms Operation Map (TOM)

Developed by Telemanagement Forum (TMF)

Strong focus on enterprise aspects of

management

Telecoms Operations Process Map captures

essential operations for:

Customer Care

Service development and operations

Network and systems management to:

(13)

TOM: Telecom Operations Map

Sales

Handling

Order

Handling

Problem

Customer

QoS

Mgmt

Invoicing

&

Collection

Customer Care Processes

Service

Planning &

Development

Service

Configuration

Service

Problem

Resolution

Service

Quality

Mgmt

Rating

And

Discounting

Service Development and Operation Processes

Network

Planning &

Development

Network

Provisioning

Network

Inventory

Mgmt

Network

Maintenance

& Restoration

Network

Data

Mgmt

Network and Systems Management Processes

Fulfilment

Assurance

Billing

Customer Interface Management Process

Network Element Management

Info

System

Mgmt

Proc

(14)

Describing Process Flows with TOM

FAB Process Flows:

Identify components taking part in process

Identify interactions and information

Identify co-operating sub-processes

Examples of Process Flows:

Service Fulfillment Flow

Service Assurance Flow

(15)

Sample Process Flow: Billing

Collection

&

Invoicing

Invoice

Collect

Rating

&

Discounting

Rate

Discount

Network

Data

Management

Collect

Aggregate

Collate

1: Network

(Usage) Data

2: Aggregated

(Usage) Data

3: Summarised

Bill Content

4: Generate Bills

Activity

Process

Activate Billing Cycle

SLA Violations

Special

Discounts

From

Fulfilment

Process

(Ordering)‏

From

Assurance

Process

(Problem

Handling)‏

Other

Providers

(16)
(17)

Uses of TOM

Framework for discussion inside and outside

of a Telco

Identifying and describing requirements

Developing interface requirements and

information models

Negotiating interfaces for automated

operations

(18)

eTOM: Enterprise Telecom Operations Map

Extends TOM to include process required in

the Telco enterprise:

Service Development and Management

Resource Development and Management

Lifecycle support for service development and

resource development

(19)

eTOM: Enterprise Telecom Operations Map

While

TOM has two levels

of features, the

functional layers and individual processes,

eTOM identifies three Levels

:

Level 0: broad classification of processes and

identifies the external stakeholders

Level 1: add the vertical classification of

end-to-end processes into areas such as fulfillment,

assurance and billing already defined in the TOM

Level 2: the processes themselves as in TOM,

such as Order Handling or Service Configuration

(20)

eTOM: Enterprise Telecom Operations Map

(21)

eTOM: Enterprise Telecom Operations Map

(22)

eTOM: Enterprise Telecom Operations Map

(23)

eTOM: Enterprise Telecom Operations Map

(24)

SID: Information Framework

The Information Framework (SID), provides an

information reference model and a common

vocabulary from a business perspective.

The Information Framework scope covers all

of the information required to implement

business processes in a Service Provider’s

operations based on the Business Process

Framework (eTOM) processes.

(25)
(26)

TAM: Telecom Applications Map

The

Telecom Applications Map

provides the

bridge between eTOM and SID (the NGOSS

framework building blocks) and real

deployable applications by grouping together

process functions and information data into

recognized OSS and BSS applications or

services, by means of:

Use of a

Common Application Language

for

information exchange

Defining a set of

Standard Application

Requirements

(in a modular approach with

reusable components)

(27)
(28)

TMF Frameworkx

Frameworx enables a service oriented, highly

automated and efficient approach to running

a service providers business through the

(29)

TMF Frameworkx

Business Process Framework – Efficient, clear and

effective business processes are critical to delivering

innovative services quickly, at the least possible cost.

Provides a comprehensive, industry agreed,

multi-layered view of the key business processes a service

provider requires to run their business. Aligned to

ITIL, and supported by off-the-shelf tools, the

Business Process Framework provides:

A comprehensive, multi-layered catalog of the business

processes required to run a service provider business

Guidelines and standard process flows ensuring processes

are efficient and effective across the enterprise

Business-to-Business (B2B) processes giving standardized

processes across a value-chain of partners

(30)

TMF Frameworkx

The Information Framework – End-to-end service

management requires a consistent use of data across the

enterprise.

Provides a comprehensive, industry agreed definition for

information that flows through the enterprise and between

service providers and their business partners. Supported by

off-the-shelf tools, the Information Framework provides a

common information model, reducing complexity and

allowing for the definition of standardized integration

points.The Framework enables business agility through:

An agreed enterprise information model for end-to-end service

management, defined using business-oriented UML models

An extensible, proven and flexible information model supporting

federation, enabling rapid introduction and management of new

technologies and services

A clear, common language between buyer and supplier and

business partners

(31)

TMF Frameworkx

‣The Application Framework – Understanding how

your business processes are implemented in your

software architecture is paramount to success.

‣Provides a model for grouping processes and their

associated information into recognizable applications.

It provides a common language and identification

system between buyer and supplier for all application

areas:

A coordinated systems map showing how your business

processes are implemented across applications

Support for enterprise architecture design through

understanding of your current systems architecture versus

a standardized map

Support for procurement through a consistent definition of

an application, the functions it should perform and the

(32)

TMF Frameworkx

The Integration Framework – Automation of business

processes enables you to significantly reduce costs and

rapidly deploy new services. But automation requires

interoperability between systems across the entire

enterprise and an extended value-chain of partners.

Defines how the processes and information behind these

systems can be automated by defining standardized

Service Oriented Architecture (SOA)-based interfaces

called Business Services (NGOSS Contracts):

A taxonomy for services and guidelines for the development

of Business Services

Model driven tooling for the machine assisted production of

standard interfaces

(33)

TMF Frameworkx

Business Metrics — Understanding the

performance of the business is a critical aspect

of managing transformation. Knowing how to

compare to the industry in key operational areas

will guide the transformation investment.

Business Metrics, mapped to the Business

Process Framework, provide a way to measure

success based on a balanced scorecard that

covers:

Revenue and margin: a view of fiscal performance

Customer experience: measures that impact the

end-customer’s reaction to the service offering

(34)
(35)

References and Readings

Websites:

Telemanagement Forum: http://www.tmforum.org/

ETSI TISPAN: http://www.etsi.org/tispan/

Documents:

Hu Hanrahan, Network Convergence: Services,

Applications, Transport, and Operations Support, Capítulo

9: “Operations Support Systems”, 2007, John Wiley & Sons

NOKIA, “OSS/BSS reference architecture and its

implementation scenario for fulfilment”

John Wilmes, Sajith Sankar, Standards-Based OSS for

Accelerating Converged Services Delivery, TMF

Mo Li, K. Sandrasegaran, "Network management challenges

for next generation networks", The IEEE Conference on

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