The Software Development Life Cycle - Software Testing: Testing Across the Entire Software Development Life Cycle - page 52

page development, and unit testing. The important ingredients of the development
environment include

• copies of the latest software fi les by version number prepared by the module

team,
short test data fi les,
copies of all system documentation, and
a change log that identifi es the version, author, and date for each software
module revision.

•
•
•

1

Create new
software files
(Development
sandbox—
individual)

Individual software files

Development integration environment

Preliminary
team
version

Tested
team
files

Tested
software
files

2

3

4

Test current
team version
(Development
sandbox—
individual)

Revise
individual files
(Development
sandbox—
individual)

Test integrated
system
(Production
staging
environment)

Individual
software
files

Tested
integrated
system files

Production environment

Figure 2.12

Software flow to the production environment