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Zelch64

Zelch64

Commodore 64 BBS Program

Manager Name: Bo Zimmerman

Repository Type: svn

Last Commit: 22790

Last Updated: 2025-12-02 14:04:06

📊 View Metrics

All lines in the file including code, text, comments, and blank lines

Language Breakdown

Language Total Lines Code Lines Comment Lines Blank Lines Percentage
assembly 2,179 2,010 695 62 43.0%
basic 1,985 1,956 0 29 39.2%
text 898 0 0 343 17.7%
Total 5,062 3,966 695 434 100.0%

Code Composition Analysis

Total Lines Over Time - Changes Per Interval

Total Lines Over Time - Growth

Commit Activity Over Time

📊 Project Cost Estimation Models

Based on 3,966 lines of code (4.0 K)

COCOMO (1981)

Effort: 14.0 person-months
Schedule: 6.3 months
Team Size: 2.2 people
Cost Estimate: $168,445
Mode: Semi-detached
Barry Boehm's foundational model using empirical coefficients based on project type.

COCOMO II (2000)

Effort: 12.7 person-months
Schedule: 8.1 months
Team Size: 1.6 people
Cost Estimate: $151,979
Exponent (B): 1.060
Updated model with scale factors for modern development practices and reuse.

Function Point Analysis

Function Points: 66 FP
Effort: 3.1 person-months
Schedule: 3.8 months
Team Size: 0.8 people
Cost Estimate: $37,181
Primary Language: assembly
Measures functionality independent of technology using standardized function points (~60 LOC/FP for assembly).

SLIM Model

Effort: 14.0 person-months
Schedule: 0.4 months
Team Size: 32.3 people
Cost Estimate: $168,445
Productivity Index: 5,000
Uses Rayleigh curves and Putnam's software equation emphasizing optimal staffing over time.

Putnam Model

Effort: 153.6 person-months
Schedule: 3.7 months
Min Schedule: 3.1 months
Team Size: 41.0 people
Cost Estimate: $1,843,726
Technology Factor: 8,000
Lawrence Putnam's lifecycle model based on productivity and minimum development time constraints.

Model Comparison Summary

Model Effort (PM) Schedule (Months) Team Size Cost (@ $75/hr)
COCOMO 14.0 6.3 2.2 $168,445
COCOMO II 12.7 8.1 1.6 $151,979
Function Points 3.1 3.8 0.8 $37,181
SLIM 14.0 0.4 32.3 $168,445
Putnam 153.6 3.7 41.0 $1,843,726
AVERAGE 39.5 4.5 8.8 $473,955

Note: These are theoretical estimates based on historical models. Actual project costs vary significantly based on team experience, requirements clarity, technology choices, and project management practices. Use these as rough guidelines for planning and budgeting, not as precise predictions.

Recent Commits

Commit User Date Total Lines
22790 bo 2024-02-21 22:38 5,062
22789 bo 2024-02-21 16:23 5,062
21876 bo 2022-11-06 01:22 4,950
15337 bo 2017-06-02 14:30 4,950
15293 bo 2017-05-20 17:27 4,950
15292 bo 2017-05-20 17:23 4,950
15291 bo 2017-05-20 16:59 4,986
15290 bo 2017-05-20 16:40 4,861
15289 bo 2017-05-20 16:19 3,962
15288 bo 2017-05-20 14:51 4,408
15287 bo 2017-05-20 14:20 5,207
15286 bo 2017-05-20 03:42 4,300
15285 bo 2017-05-20 03:18 3,757
15284 bo 2017-05-20 03:17 3,757
15283 bo 2017-05-20 03:15 3,747
15282 bo 2017-05-20 02:52 3,551
15281 bo 2017-05-20 02:47 3,551
15280 bo 2017-05-20 02:13 2,651
15277 bo 2017-05-20 00:39 3,579
15276 bo 2017-05-20 00:38 3,579
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