APP-EAM-02 - The same asset in a constrained programme

CityWater’s funding board has allocated 8 for initial capital, a separate 0.60 for initial operating expenditure and 3 for annual operation. The infrastructure committee is authorized to select the asset programme within those allocations; changing an allocation requires a decision by the funding board. The operating plan separately supplies twelve available team/outage days before the wet season. These allocations, authorities and operating conditions are constructed case premises. No later funding is assumed in this base comparison. Each station needs exactly one of its two qualified options. For this small problem, enumerate all sixteen combinations; do not rank individual condition scores or savings ratios.

Codes below follow asset order A/B/C/D. Every row satisfies the initial and recurring operating allowances and the twelve-day bound; the base funding column identifies the remaining capital constraint. The service checks still require a non-overlapping schedule for the connected outages.

FFMK is the minimum-cost eligible combination: refurbish A and B, modify C and retain D under its supported policy. It uses 7 of capital, 0.50 of initial operating cash, 1.85 annually and eight team/outage days. Its total present cost is 14.592284. A feasible twelve-day calendar under these premises can place A on days 1–2, B on 3–4, C on 5–7 and D on 8, with four uncommitted days. Each restored station is available before another dependent station is removed. The uncommitted allowance is not permission to bypass a return condition or proof that all disturbances fit.

The individual D recommendation remains true under its assumptions, but replacing D while retaining both refurbishments and C modification needs 10 of capital and is infeasible at 8. FFLR frees C’s capital through leased service and replaces D, but costs 15.350138 overall. Thus merely swapping in the individually preferred D option is not the portfolio answer. The unused 1 of capital is not an extra benefit or an instruction to spend it.

Three separate changed-condition branches show the decision’s sensitivity:

• With the funding board’s capital allocation raised to 10 and the other premises unchanged, FFMR becomes best: both refurbishments, C modification and D replacement, present cost 13.080344 and ten days. The authorized funding change precedes reliance on that feasible set; a desired budget increase is not available money.
• With only seven team/outage days and the original capital limit, FRLK becomes best among the supplied options: refurbish A, replace B, lease C’s added service and continue D. It takes seven days, 5.5 capital and costs 16.807180. A cheaper eight-day combination does not fit merely because each job fits separately. Another qualified team or extended window would be another explicit alternative with its own full cost and service implications.
• If a new engineering finding invalidates D’s continued-use policy, remove every ...K combination. At the original limits, FFLR is then best, at 15.350138 and eight days. The supported response changes before any attempt to justify D continuation by its affordability. If the leased service were also unavailable, return the resulting unmet service/funding condition to the responsible decisions.

The EAM team submits its programme recommendation to the infrastructure committee. The finance practitioner supplies cost estimates and an affordability assessment against the funding board’s allocations; those allocations set the spending limits. The infrastructure committee selects and authorizes an asset programme that fits those limits and the water-delivery mandate. MNT and operating authorities subsequently determine the permissions and conditions for protected work and resumption. The team can deliver its supported recommendation before the committee decides; the team reports an authorized programme only after that decision is supplied.

When the demand basis changes

The original sixteen combinations use the supplied North wet-season requirement of 1,100 m³/h. Suppose a later, separately qualified demand account gives 1,250 for a period the asset choice must cover. EAM.4 establishes its component basis, coincidence and status as a forecast or commitment; its Westbank example shows that construction with separate teaching inputs. EAM.6 then compares the new scenario with the 1,200 contribution supported by either current C option. The 50 m³/h gap means none of the sixteen existing combinations supplies that scenario. Re-ranking their costs cannot repair the missing service.

Return to EAM.7 for an additional supported contribution or a qualified demand-management alternative, then compare the resulting policies and combinations on the revised premises. A proposal to change the service obligation goes to its actual authority. The original programme calculation remains applicable to its original conditions. If later observations reveal the changed driver, EAM.13 reopens this affected account and its option consequences.

When a shared dependency changes recovery

A common dependency can require another option even when the normal-demand comparison passes. EAM.6’s separate feeder example shows both units losing their contribution together, reserve exhaustion before full recovery, and an independent supply whose time to usable service changes the result. Its qualified recovery conditions become inputs to EAM.7/.8’s alternatives and EAM.11’s calendar. A favourable price or available team does not restore the missing service.

To apply that construction to CityWater, obtain the relevant dependency, deliverability, usable reserve and restoration account for its actual service boundaries. Compare the resulting options in EAM.9/.10 and retain the relied-on recovery conditions in the recommendation. The original CityWater outage bounds remain useful for the situations they describe. If an observed restoration time or dependency changes, EAM.13 returns to the affected capability, option and timing rather than treating the former programme as qualified for the new loss.

When shared work changes the consequences

The sixteen rows above use their declared additive costs and whole-work times. They do not establish whether a different work arrangement could share a mobilization, require extra temporary service or change a later commitment. EAM.10’s separate P+Q/Z case shows why that question matters: one qualified shared mobilization makes the joint solution cost 3.8 against the alternative’s 3.9, while two required visits make it cost 4.0.

For a proposed CityWater arrangement, EAM.11 must establish its actual windows and whole work, and EAM.6 its service conditions. EAM.10 then reconstructs that combination’s consequences; FIN.9 supplies the financial return if joint cash or dated funding must be developed. Recompute the affected rows rather than applying a discount to all sixteen. If the change also affects demand, recovery or a continuing policy, return that premise to EAM.4, EAM.6 or EAM.8. The existing capital, time and D-qualification branches remain valid on their stated premises.

What subsequent outcomes and practice questions would mean

The programme promises the qualified added service from C, continued supported use of D and the stated spending. Completion of the work alone establishes none of those whole-programme outcomes. EAM.13 shows how an obtained variance changes a particular premise, without inferring a technical cause from cost alone.

The later practice examples are separately constructed continuations. EAM.14 compares a small responsibility/information repair with a new application. EAM.15 compares a condition-priority rule with complete combination comparison and distinguishes a desk result from a trial in real decisions. EAM.16 examines teaching, later use and selection of the reusable practice with different evidence. An observed asset selection is not automatically selection of the Method that helped produce it.