Activity: Setup CM Environment

Purpose The purpose of this activity is to establish an environment where the product can be developed and built. This is done in two parts, firstly by setting up the hardware environment, and then by establishing the development environment. Setting up the CM environment involves allocating machine resources (servers and disk space) and installing the configuration management tools Setting up the development environment involves creating repositories, setting up the product directory structure, and importing any existing files. The initial environment serves as a baseline for further development work.
Steps Setup the CM Hardware Environment Map the Architecture to the Repository Create Initial Set of Versioned Elements Define Baseline Promotion Levels
Input Artifacts: CM Plan Implementation Model	Output Artifacts: Project Repository
Worker: Configuration Manager
Tool Mentor: Checking Out and Checking In Configuration Items using Rational ClearCase

Workflow Details:

Core Workflow: Configuration & Change Management

Create Project CM Environments

Setup the CM Hardware Environment

The Configuration Manager works with the System Administrator to allocate machine resources, and install the necessary software tools.

The key considerations (in order of priority) for the machine dedicated to running the server that mediates access to actual data in the project repository are the following:

Map the Architecture to the Repository

The product directory structure serves a logically nested placeholder for all product-related artifacts. The shape of the directory (which serves as the project repository) depends on the number of subsystems in the overall system, and the number of components in each subsystem.

Even though the logical structure of the product does not emerge until Analysis&Design activities are underway, an initial project repository needs to be created for the management and planning artifacts. Guidance for the initial structure is provided under Concepts: Product Directory Structure.

The reminder of the structure can be elaborated once design decisions have been made, and the nature of the Implementation View becomes clearer on how various design elements are to be packaged for implementation.

The configuration management task is to ensure that is a placeholder for each component that needs to be implemented in the directory structure, and that there will be sufficient physical storage for the artifacts that will be developed as part of the implementation. For CM purposes there must be a high degree of cohesion between internal elements in the product directory structure. The components should have clearly defined interfaces with the other parts of the system, and be independently buildable and testable. The key reason here is to allow for independent and parallel development of the systems by separate teams. The idea is to significantly speed up development and promote reuse and ease of system maintenance.

Create Initial Set of Versioned Elements

Even on projects with no configuration management there is a notion of a file structure and an existing body of material that is used by the project on an on-going basis. The idea is to export/import the existing material into the structure created for product development.

Define Baseline Promotion Levels

Purpose

A baseline is a single version of the project repository. The quality or status of that baseline is indicated by a baseline promotion level. All elements stored in the project repository share a common set of "legal" promotion levels. This is to ensure consistent definition of promotion level across multiple projects.

Baselines are linear, and can be moved up or down levels depending on the quality of the items.