Project Compression / Crashing

Simply crashing is reducing an activity. A project is composed of several activities. Each activity has a duration. So the total time for the project depends on the durations of each activity. Therefore is we can reduce the duration of activities, we can finish the project quickly. Inorder to reduce the duration of an activity we have to put more resources to that activity. It means we have to put more money.

So the main advantage of crashing is the reduction of the project duration which ultimately reduce the indirect cost of the project.

The following presentation gives a brief introduction to crashing and it also contains a simple example on finding the cheapest activity to crash.

Below the presentation you can find a video which describes what is in the presentation.

Crashing from Binura Dodangoda

Quality Assurance Vs. Quality Control

What is Quality Assurance ?

Quality assurance (QA) is a way of preventing mistakes or defects in manufactured products and avoiding problems when delivering solutions or services to customers.
(Source: https://en.wikipedia.org/wiki/Quality_assurance)

What is Quality Control ?

Quality control (QC), is a process by which entities review the quality of all factors involved in production.
(Source: https://en.wikipedia.org/wiki/Quality_control)

Quality Assurance (QA) Vs. Quality Control (QC)

• QA is a Proactive activity and done before the product is manufactured or services are delivered.
  But QC is a Reactive activity and done during or after the manufacturing process.
• QA is process oriented.
  But QC is product oriented.
• QA focuses on prevention of defects to improve quality.
  But QC focuses on detection of defects to improve quality.

QA vs. QC facts are extracted from the following video
(https://www.youtube.com/watch?v=gxwIfiQTPBw)