Activity: Refine the Architecture
var defaultQueryStr = '?proc=_pV4NgSFsEdqrX8YVzvtlIg&path=_pV4NgSFsEdqrX8YVzvtlIg,_UNdM0CFtEdqrX8YVzvtlIg';
var backPath = './../../';
var imgPath = './../../images/';
var nodeInfo=null;
contentPage.preload(imgPath, backPath, nodeInfo, defaultQueryStr, false, true, false);
Activity: Refine the Architecture
This activity completes the architecture for an iteration.
Extends: Refine the Architecture
DescriptionWork Breakdown StructureTeam AllocationWork Product Usage
Relationships
Parent Activities
Elaboration Iteration
Description
This activity:
Provides the natural transition from analysis activities to design activities, identifying:
appropriate design elements from analysis elements
appropriate design mechanisms from related analysis mechanisms
Describes the organization of the system's run-time and deployment architecture
Organizes the implementation model so as to make the transition between design and implementation seamless
Maintains the consistency and integrity of the architecture, ensuring that:
new design elements identified for the current iteration are integrated with pre-existing design elements.
maximal re-use of available components and design elements is achieved as early as possible in the design
effort.
Properties
Event Driven
Multiple Occurrences
Ongoing
Optional
Planned
Repeatable
Staffing
These activities are best carried out by a small team staffed by cross-functional team members. Issues that are
typically architecturally significant include usability, performance, scaling, process and thread synchronization, and
distribution. The team should also include members with domain experience who can identify key abstractions. The team
should also have experience with model organization and layering. The team will need to be able to pull all these
disparate threads into a cohesive, coherent (albeit preliminary) architecture.
Because the focus of the architecture effort is shifting toward implementation issues, greater attention needs to be
paid to specific technology issues. This will force the architecture team to shift members or expand to include people
with distribution and deployment expertise (if those issues are architecturally significant). In order to understand
the potential impact of the structure on the implementation model on the ease of integration, expertise in the software
build management process is useful to have.
At the same time, it is essential that the architecture team not be composed of a large extended team. A strategy for
countering this trend is to retain a relatively small core team with a satellite group of extended team members that
are brought in as "consultants" on key issues. This structure also works well for smaller projects where
specific expertise may be borrowed or contracted from other organizations; they can be brought in as specific issues
need to be addressed.
Usage
Usage Guidance
The work is best done in several sessions, perhaps performed over a few days (or weeks and months for very large
systems). The initial focus will be on the activities Identify Design Mechanisms and Identify Design Elements, with a great deal of iteration with the Incorporate Existing Design Elements activity to make sure that new
elements do not duplicate functionality of existing elements.
As the design emerges, concurrency and distribution issues are introduced in the activities Describe the Run-time Architecture and Describe Distribution, respectively. As these issues are considered, changes to design elements may be required to split
behavior across processes, threads or nodes.
As the individual models are refined to incorporate the architectural decisions, the results are documented in
respective view sections in the Software Architecture Document (e.g., as the Design Model is refined, the Logical View
of the Software Architecture Document is refined, as well). The resulting architecture is reviewed.
© Copyright IBM Corp. 1987, 2006. All Rights Reserved.
contentPage.onload();
Wyszukiwarka
Podobne podstrony:
refine the architecture?F2AA31refine the architecture?F2AA31refine the architecture?F2AA31refine the architecture?F2AA31refine the architecture?0FA195refine the architecture?0FA195refine the architecture?0FA195refine the architecture?0FA195The Architecture of?sirerefine the system?finition5160221Refine the Project Plan?25A642Refine the Project Plan?25A642review the architecture?7975CCrefine the system?finition5160221refine the system?finition5160221refine the system?finition?7B8011refine the system?finition?7B8011review the architecture?FF0083Refine the Project Plan?25A642więcej podobnych podstron