16/06/2024
Software development teams in different environments will typically employ:
► Relative estimation ►Absolute estimation and ► Historical data analytics to estimate different work items.
➡️ T-SHIRT SIZING
Assign sizes like S, M, L, XL to work items based on complexity and relative effort.
XS ► Extra Small
S ► Small
M ► Medium
L ► Large
XL ► Extra Large
➡️ STORY POINTS ESTIMATES
► Based on complexity, uncertainty in work in different work items.
► Fibonacci scale (0 1 2 3 5 8 13 ….), a reference for estimation.
N/B: BEST PRACTICE IS NEVER TO ATTEMPT CONVERTING STORY POINTS OR T-SHIRT SIZING TO DAYS.
OTHER WAYS TO ESTIMATE:
➡️ ABSOLUTE TIME-BASED ESTIMATES: Estimate the time required to complete a task in hours or days.
➡️ HISTORICAL DATA: Analyze past project data to predict future effort
N/B: Irrespective of what method employed, shared estimation and collaboration ensures best results.
There's no perfect estimation method as all have pros and cons.
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