Enterprise Continuum & Tools Flashcards
taxonomies and tools to categorize and store the outputs of architecture activity
Enterprise Continuum is partitioned into 3 continua
Enterprise Continuum (outermost continuum and classifies assets related to the context of the overall Enterprise Architecture)
Architecture Continuum - Foundation Arch.s, Common System Arch.s, Industry Arch.s, Org-Specific Arch.s
Solution Continuum -Foundation Solution Arch.s, Common System Solution Arch.s, Industry Solution Arch.s, Org-Specific Solution Arch.s
Relationship between the Architecture Continuum and the Solutions Continuum is one of guidance, direction, and support.
Tools in Enterprise Continuum
Needed to manage and control the artifacts within Enterprise Continuum
Promotes reuse
Enables sharing arch. information with org.
Facilitates easier maintenance of arch.
Ensures common terminology is used
Provides stakeholders with relevant models.
Enterprise Continuum vs architecture Repository
The Enterprise Continuum is a view of the architecture Repository that provides methods for classifying architecture and
solution artifacts as they evolve from generic Foundation Architectures to Organization-Specific
Architectures.
The practical implementation of the Enterprise Continuum takes the form of an Architecture Repository
Architecture Repository vs ADM
Arch. Repository stores different classes of architectural output at different levels of abstraction, created by
the ADM.
TOGAF ADM has reminders on when to use assets from Arch. repository.
The practical implementation of the Enterprise Continuum takes the form of an Architecture Repository.
Major components within an Architecture Repository
- Architecture metamodel
- Architecture Capability
- Architecture Landscape
- Standards Information Base (SIB)
- Reference Library
- Governance Log
- Architecture Requirements Repository
- Solutions Landscape
Architecture metamodel
Describes architecture framework in use within this enterprise
Architecture Capability
- contains Skills Repository, Org structure, Arch. Charter
Defines the parameters, structures, and processes that support governance of the Architecture Repository.
Describes the org, roles, skill and responsibilities of EA practice.
Architecture Landscape
It is architectural representation of assets deployed within the operating enterprise at a particular point in time — the landscape is likely to exist at multiple levels of abstraction to suit different architecture objectives.
Shows the state of the operating enterprise at particular points in time.
Types of Arch. Landscape
- Strategic Architectures (shows log-term summary view of entire enterprise) - Allow direct setting at executive level.
- Segment Architecture (provides more detailed operating models for areas within an enterprise) - Used at program or portfolio level.
- Capability Architecture (shows in detail how a particular capability is supported by the enterprise) - overview of current capability, target capability, capability increments.
Reference Library
Provides guidelines, templates, patterns, and other forms of reference material for creation of new architectures for the enterprise.
Contains reusable arch. work products.
Standards Information Base (SIB)
A repository area to hold set of specifications, to which arch.s must conform.
Defines the complaince criteria for work governed by architecture
Types of standard in SIB
- Legal and Regulatory Obligations
- Industry Standards
- Organizational Standards
Standards Lifecycle stages
1.Provisional Standard (aka Trial Standard)
2. Standard (aka Active Standard)
3. Phasing-Out Standard (aka Deprecated Standard)
4. Retired Standard (aka Obsolete Standard)
Standards classified with the TOGAF architecture domains
- Business Standards:— Standard for shared business functions, role and actor definitions, Security and governance for business activity
- Data Standards:— Standard for coding and values for data, structures and formats for data, origin and ownership of data, restrictions on replication and access
- Applications Standards:— Standard/shared applications supporting specific business functions, Standards for application communication and interoperation, access, presentation, and style
- Technology Standards:— Standard hardware products, software products, standards for software development
Governance log
-Decision log, Compliance assessments, Capability assessments, Calendar, Project portfolio, Performance Measurement
Provides a record of governance activity across the enterprise.
Captures results of governance activity.
Architecture Requirements Repository
Record and manage all information relevant to the architecture
requirements.
A view of authorized architectural requirements.
Three levels of granularity of Arch. Requirements
Similar to arch. landscapes:
1. Strategic Architecture Requirements
2. Segment Architecture Requirements
3. Capability Architecture Requirements
Solutions Landscape
Holds the Solution Building Blocks (SBBs) which support the
Architecture Building Blocks (ABBs) specified, developed, and deployed.
Enterprise Repository
Support the architecture both inside and outside of the enterprise.
Contains the Arch. repository.
Connects to External Reference models (industry ref models), External Standards (industry best practices) and Arch. boards (approvals for arch. board is held in Enterprise Repository).
Enterprise Continuum
Repository of all architecture assets. It is a virtual repository of architectural artifacts (kept in Architecture Continuum) and solution artifacts (placed in Solution continuum)
Architecture Continuum
Architecture Continuum offers a consistent way to define and understand the generic rules, representations, and relationships in an architecture, including traceability and derivation relationships
Architecture Continuum represents a structuring of Architecture Building Blocks (ABBs) which are re-usable architecture assets.
Solutions Continuum
Solutions Continuum provides a consistent way to describe and
understand the implementation of the assets defined in the Architecture Continuum
The Solutions Continuum defines what is available in the organizational environment as
re-usable Solution Building Blocks (SBBs).
Architecture Continuum parts
- Foundation Architectures - Eg: TOGAF TRM
- Common Systems Architecture - Eg: TOGAF Integrated Information Infrastructure Reference Model (III-RM)
- Industry Architectures
- Organization-Specific Architectures