Describe resource planning during the estimation of software project.

There are three main categories of software engineering resource: people, reusable software components, and the development environment.
 Software Project
 (i) People.
 i. Skill.
 ii. Location.
iii. Number.

 (ii) Environment.
 i. Software tools.
ii. Hardware.
 iii. Network Resources.

 (iii) Reusable software.
 i. New components.
 ii. Full-experience components.
 iii. Part-experience components.
iv. COTS (Commercial off-the-shelf)) components.