DESIGN FOR SIX SIGMA (DFSS) TEAM AND TEAM SOFTWARE PROCESS (TSP) - Software Design for Six-Sigma: A Roadmap for Excellence - page 281

Size Estimating Template Instructions

Purpose Use this form with the PROBE method to make size estimates.

General - A part could be a module, component, product, or system.

- Where parts have a substructure of methods, procedures,
functions, or similar elements, these lowest-level elements are
called items.
- Size values are assumed to be in the unit specified in size
measure.
- Avoid confusing base size with reuse size.
- Reuse parts must be used without modification.
- Use base size if additions, modifications, or deletions are
planned.
- If a part is estimated but not produced, enter its actual values as
zero.
- If a part is produced that was not estimated, enter it using zero
for its planned values.

Header - Enter your name and the date.

- Enter the program name and number.
- Enter the instructor's name and the programming language you
are using.
- Enter the size measure you are using.

Base Parts - If this is a modification or enhancement of an existing product

- measure and enter the base size (more than one product may be
entered as base)
- estimate and enter the size of the deleted, modified, and added
size to the base program
- After development, measure and enter the actual size of the base
program and any deletions, modifications, or additions.

Parts Additions - If you plan to add newly developed parts

- enter the part name, type, number of items (or methods), and
relative size
- for each part, get the size per item from the appropriate relative
size table, multiply this value by the number of items, and enter
in estimated size
- put an asterisk next to the estimated size of any new-reusable
additions
- After development, measure and enter
- the actual size of each new part or new part items
- the number of items for each new part

Reused Parts - If you plan to include reused parts, enter the

- name of each unmodified reused part
- size of each unmodified reused part
- After development, enter the actual size of each unmodified
reused part.