scaffolding

Short definition from Wiktionary

Noun

1. 1
   A temporary modular system of tubes, bamboo or wood forming a framework used to support people and material in the construction or repair of buildings and other large structures.
2. 2
   Source code etc. that is incomplete and serves as a basis for further development.
3. 3
   Any framework or support.

Verb

1. 1
   present participle and gerund of scaffold