Article 01
The hidden cost of repetitive work: what to measure before building software
Turn repeated entry, checking, follow-up and reporting time into evidence for deciding which workflow should be improved first.
Hours / month
36.7
Example situation
Start with the people using the system
Everyone looks busy, but nobody can quantify the repeated work
A team receives customer data in chat, copies it to Excel, sends it for review, then enters it again into accounting software. Each round appears small, but repeated daily across the team it creates waiting time, errors and delayed management information in addition to payroll cost.
Summary for business and everyday users
The hidden cost of repetitive work: what to measure before building software
Measure one frequent workflow involving several people.
Separate working time, waiting, rework and the impact of incorrect data.
Use the estimate to choose a starting point, not to guarantee ROI in advance.
Interactive explanation
See how the stages connect before reading the detail
Select a stage to understand what happens, what evidence to inspect and how one decision affects the next stage.
Step 01 / 03
01 / See the whole workflow
Repeated-work cost is more than data-entry time
Follow one item from start to finish and record every copy, approval wait, status follow-up and correction. Counting only keyboard time underestimates the real cost because many bottlenecks sit between handoffs.
Evidence to inspect
- Direct work time
- Waiting and follow-up
- Checking and rework
- Impact of delayed work or reports
In-depth explanation
Work through each issue in real operating context
Each section connects business impact with what a Tech Lead needs to inspect, including examples, evidence and constraints.
01 / See the whole workflow
01Repeated-work cost is more than data-entry time
Follow one item from start to finish and record every copy, approval wait, status follow-up and correction. Counting only keyboard time underestimates the real cost because many bottlenecks sit between handoffs.
- Direct work time
- Waiting and follow-up
- Checking and rework
- Impact of delayed work or reports
02 / Turn it into numbers
02Use a simple formula and make assumptions visible
A basic formula gives the team a shared baseline. Monthly frequency and time per task should come from observation or a real sample period, not values selected to make a project look attractive.
Worked example
Daily sales report consolidation
Four staff spend 25 minutes each day, 22 working days per month, at an average people cost of THB 220 per hour.
4 × (25 ÷ 60) × 22 = 36.7 hours/monthAbout THB 8,067 per month before checking time and errors
03 / Use it to decide
03Not every repeated task deserves software
If work is infrequent, changes often or errors have little impact, process improvement may be better than new software. A system becomes useful when the workflow is repeatable, involves several roles and produces data important to service, revenue or decisions.
A Tech Lead should check whether source data is structured, whether integrations can remove duplicate entry and how many exception flows automation may introduce.
Checklist before action
Choose one workflow
Observe for 1-2 weeks
Separate waiting from working time
Record people and frequency
Assess error impact
Compare with non-software alternatives
References
SIS working method and calculation notes.
Figures and examples create a discussion framework. Validate them against the real system and its constraints before deciding.
- Reviewed by
- SIS Product & Engineering
- Last reviewed
- 2026-07-17
Not sure where to start the review?
Use a preliminary tool or share the system context with SIS so the highest-priority work can be identified.