Criterion D - Functionality & Extensibility of Product

IB Comments and Sample

The functioning product	Video (2–7 minutes in length) demonstrating the product	Functionality and extensibility of product
Extensibility of product	Assessed through design overview and developing the product	Functionality and extensibility of product

Criterion D: Functionality and extensibility of product (4 marks)

This criterion assesses the extent to which the product:

functions, as evidenced in the video
can be expanded and modified by future users as evidenced in the design and development documentation.

Marks	Description
0	The response does not reach a standard described by the descriptors below.
1–2	The video shows that the product functions partially. Some expansion and modification of the product is possible but difficult.
3–4	The video shows that the product functions well. Some expansion and modifications of the product are straightforward.

Moderator’s comments

Criterion	A	B	C	D	E	Total
Marks available	6	6	12	4	6	34
Marks awarded	6	6	9	4	6	31

General comments