Freelance Programmers: Coding and Checking

Who produced the work, and who checked it?

In her 2001 oral history, Shirley distinguishes her project management and supervision from software written by other women. Remote coordination used post and telephone. Fixed-price, fixed-delivery work required assessing the work content rather than watching people in an office.

This is a division of responsibility. Writing a program and accepting a deliverable are different actions, even when one person can sometimes perform both. A later founder’s recollection also cannot identify every contributor to a particular contract.

Sources for this section: [1]

The delivery chain included the machine

She recalled sending paper-written programs to a computer centre and waiting days for results; a failed input routine could prevent a run from starting. Some later contracts depended on two computer turnarounds a week.

Her 2020 BCS account separately connects fixed-price work with measuring performance and describes early software-management standards.

The later interview-based study treats written standards as central to the firm’s reputation and questions why its original employment ethos did not survive growth.

The useful comparison is between a description of responsibility and a description of process. Neither permits treating typing, a machine run, checking and client acceptance as interchangeable evidence.

Sources for this section: [1] · [2] · [4]

Original scheduling task

Invented case, not a historical contract: writing takes 2 days, checking 1, a first computer return 3, repair 1, a second return 3 and final checking 1. Assume every stage begins only after the preceding stage finishes, no overlap, and no weekends or additional delay. What is the earliest completion time? Does finishing the writing establish delivery?

Sources for this section: [1]

Reference answer and a diagnostic question

The earliest completion is 2+1+3+1+3+1=11 days. Writing ends after day 2; the assumed chain has nine further days. Delivery therefore cannot be inferred from writing alone. If a reviewer claims a shorter total, ask which dependency has been removed and what evidence permits overlap. The exercise makes the dependency explicit; it does not reconstruct a real project or estimate modern programming productivity.

Sources for this section: [1]