Choose a deployment model for four conflicting briefs

applied · 55 min · Objective 1.1

Task

Apply the whole of objective 1.1: read four briefs, find the driver in each, choose a service model and a deployment model, and defend the choice against the option you rejected. Two of the four contain a deliberate conflict between stated drivers.

Steps

  1. Write the four briefs into lab/briefs.md yourself, one paragraph each: (a) a firm whose data must remain on hardware no other customer touches, wanting to reduce operations headcount; (b) a retailer with a hardware refresh completed last year and a traffic peak eleven days a year; (c) a service that must survive the loss of an entire provider, with a small team; (d) three hospitals sharing one regulatory regime and wanting shared infrastructure.
  2. For each brief, write the single sentence that states the DRIVER. If you cannot find one sentence, the brief is not specific enough -- rewrite it until it is.
  3. Record your choice for each in lab/decisions.csv with columns brief,service_model,deployment_model,driver,rejected_option,why_rejected.
  4. For briefs (a) and (c), identify the conflict between the two stated drivers and say explicitly which you treated as mandatory and which as a preference.
  5. Re-read your four answers and mark any where you chose the more capable option rather than the simplest one that meets the stated need. Change it, or write why the extra capability was required.

Verify

awk -F, 'NR>1 && NF>=6 {n++} END {print n" decision(s) with a rejected option"}' lab/decisions.csv
grep -ci 'mandatory' lab/decisions.csv lab/briefs.md
awk -F, 'NR>1 {print $3}' lab/decisions.csv | sort -u | wc -l

Four complete decisions, and more than one distinct deployment model. An exercise that answers "public cloud" four times has not engaged with the briefs.

Notes

Brief (d) is the community-cloud cue: several organisations, one shared concern. It is rare in practice and common in exam questions, which is exactly why it is here.

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