Tools
7MP Management and Planning Tools
8QC Traditional Quality Control Tools
Failure Mode, Effects, and Criticality Analysis
Maintainability and Availability
Process Decision Program Charts
An Activity Network Diagram deals primarily with time. This tool will help you plan how long a project will take, which jobs you can afford to delay a bit, and which jobs absolutely must be completed in a minimum amount of time.
Project management network diagrams are often (nowadays) provided by use of a gannt chart.
When to Use a Project management Network Diagram
An excellent source of additional information on this Management & Planning Tool is Six Sigma Demystified: Second Edition by Paul Keller (McGraw-Hill (2011).
Learn more about the Quality Improvement principles and tools for process excellence in Six Sigma Demystified (2011, McGraw-Hill) by Paul Keller, or his online Green Belt certification course ($499).